All Products

66-6907-25-W AirLink 6900 Wireless Explosion Proof Transmitter, Nitric Oxide (NO) 0-25 ppm, dual battery, 900 MHz radio by RKI Instruments

The RKI AirLink 6900 is a versatile truly wire free transmitter using electrochemical, PID or low-power infrared sensor elements to detect a variety of gases. Wireless, dual battery power (3.6 V Lithium-Thionyl Chloride battery) with 900 MHZ or 2.4 GHz radio options. Magnetic switches allow for non-intrusive calibration as well as full system settings and diagnostics, while in the field.

Features

• Electrochemical, PID, or IR sensors available
• Wireless communication: 900 MHz radio and 52 networks; 2.4 GHz radio and 78 networks
• Dual battery powered
• Battery life: 2-year maximum - electrochemical sensors; 1-year maximum low-power infrared sensors
• Graphical LCD with LED backlight, readable in sunlight
• 3 Push-button interface (ADD, MENU, SUB) with corresponding magnetic, non-intrusive switches
• Explosion/flame-proof certification for select gases
• 1-Year warranty
• Optional remote-mount sensor kit with enclosure

Industry Applications

• Petrochemical plants, refineries
• Water & wastewater treatment plants
• Pulp & paper mills
• Manufacturing facilities
• Chemical plants
• Construction
• Temporary or permanent applications

*Please note we can only ship RKI products to customers within the United States

27937 Si-CA 130 Kit 2ASF, includes two gas sensors (O2, CO), 7" (180mm) Flexible sampling Probe, vinyl carrying case by Sauermann

The Si-CA 130 features a touch-screen display and comes with PC-based management software (in addition to the smartphone app) for more in-depth combustion gas analysis. The three field-replaceable cells and sensors offer expanded measurement capability.

• Field replaceable precalibrated sensors
• Large color touch screen
• CO sensor measurement up to 8000 ppm
• Data management with automatic logging & report creation trough app/PC software
• Lightweight, only 350 g (12 oz)
• Up to three gas sensors O₂, CO and NO or Low NO (for NOx)
• Predictive maintenance with estimated sensor life & calibration reminders
• Draft & differential pressure measurements
• Calculated CO₂ % value
• Auto pump cut-off for high CO levels (user-adjustable)
• NOx capable with NO sensor (optional)
• One Touch Pump On/Off with Purge
• PC software with wireless and USB connectivity
• Combustion efficiency & excess air calculations
• Graphical data display
• Customizable gas analysis screen
• Sample conditioning unit for low NOx & high moisture applications
• CO & CO₂ Monitoring in Ambient Air
• Smart Air Temperature Probe
• Protective rubber holster
• Maintenance contracts and extended warranties available

Kit Includes:

• 1 Si-CA 130 analyzer
• 1 O₂ gas sensors
• 1 CO gas sensors
• 1 NO gas sensors
• 1 Low NO gas sensors
• 1 Protective rubber holster
• 1 Flue gas probe with dual hose
• 1 Water trap with filter
• 1 AC power supply / charger
• 1 USB cable
• 1 Mobile app & PC software
• 1 Internal wireless communication module
• 1 Carrying case
• 1 Quick Start Guide
• 1 Calibration certificate

VP5-Q4521100111 Ventis Pro Series, CO2 IR (0-5% vol, low power), NO2, SO2, H2S, Li-ion, Desktop Charger, Black, UL/CSA, LENS™ Wireless, English by Industrial Scientific

Detect up to five gases simultaneously with the rugged, wireless, Ventis® Pro5 Multi-Gas Monitor. With Ventis Pro5, safety goes beyond the gas detector whether you need team-based alarm sharing, remote monitoring with location details, or both. The monitor is also backed by a Guaranteed for Life™ warranty.

• Eliminate the need for two pieces of equipment by using Ventis Pro5 for personal monitoring and confined space entry.
• Train workers on one, multi-purpose gas monitor and reduce the risk and investment of having different devices in the field.
• Improve team and site safety by locally sharing alarms and gas readings between wirelessly connected Ventis Pro5 monitors.
• Get real-time location and alarm data directly from Ventis Pro5 gas monitors to a designated safety contact with the optional cellular or wi-fi battery pack.
• Reinforce safe behavior with programmable alarm action messages like "EVACUATE" or "VENTILATE" based on alarm level.
• Simplify the user experience with the ability to hide unnecessary screens based on user needs, role, industry, or site.

M-700041 Manning AirScan IRF9 Transmitter, R422d 0-3,000 ppm Commercial Enclosure by Honeywell Analytics

The industrial refrigeration industry is changing rapidly. The manufacture of R-22 and other HCFCs are being phased out. Influential organizations such as EPA and CARB (California Air Resources Board) are enforcing lower level monitoring requirements. Manufacturers of cooling systems are introducing new equipment that runs on 407a, 422d, 410a, HFO-1234yf, NH3 and CO2. In step with these changes, EPA fines have escalated for anyone venting ozone-depleting gases. What's your best move? Contact Honeywell Analytics to learn how to detect for these new refrigerants. With Honeywell Analytics, you can green the environment—and green your bottom line.

Honeywell Analytics Infrared monitoring solutions are designed to help your plant operate more efficiently and cost effectively. Unlike sample draw systems which take longer to pinpoint a gas leak, our diffusion sensing technology cuts downtime and the cost of expensive refrigerant replacement. Other technological advantages include flexible standalone or networkable configurations, long operating life expectancy (10+ years); fewer calibration requirements; self-monitoring SensorCheck technology; EPA compliance including newer requirements set by CARB (California Air Resources Board); and accurate, reliable response to the most common refrigerant gases used in industrial or commercial processes.

Refrigerant Specific

• Rapid response to refrigerants including R-404a, R-22, R-507a, R-134a, R-407a, R-410a, R-422d, HFO-1234yf, NH3 and CO2
• Internal monitoring of 4/20 mA loop circuitry continuously
• Compliant with new monitoring standards set by CARB

Diffusion-Design Sensor

• Has no moving parts and doesn't require pumps or filters
• All points of detection can be monitored continuously at an affordable cost

Versatility

• Can be used with any Honeywell Analytics readout
• Standard range of 0-3,000 ppm, can be rescaled for lower trip points
• Provides a linear output of 4/20 mA as a function of refrigerant concentration
• Simple, real-time calibration eliminates maintenance downtime
• Automatically adapts to fluctuating temperatures

Long-Lasting Performance

• Unique internal reference channel compensates for dust particles, source degradation, humidity and temperature fluctuation, food odors, chemical cleaners, etc.

ATMOS™ Technology

• Allows for operation down to -60°F and in condensing humidity environments or during washdown
• Automatically adapts to its environment and provides accurate and reliable performance under the harshest conditions

SensorCheck™ Technology

• Checks operating parameters of sensors and sends a notification output signal if an anomaly is identified
• Tests the sensor every 24 hours for electrical viability
• Indication can be detected by a Manning gas monitor or PLC

Housing

• High-mass metal bench provides structural and thermal stability and greater immunity to vibration
• Superior EMI/RFI shielding

Applications

• Banana and Produce Rooms
• Beverage Plants
• Wineries and Breweries
• Confined Space Entry
• Food Processing
• Gas Bottling Plants
• Ice Rinks
• Product Coolers
• Rack Houses
• Refrigeration Systems
• Supermarkets

*Please note we can only ship RKI products to customers within the United States

*Please note we can only ship RKI products to customers within the United States

MX6-C123R211 MX6 iBrid Multi-Gas Monitor, H2, CO, H2S, O2, PID, Lithium-ion Extended Range Battery, UL/CSA/ATEX/IECEx, Pump, English by Industrial Scientific

The MX6 iBrid® is more than an intelligent hybrid of Industrial Scientific's best monitoring technologies—it's the most adaptable six-gas monitor on the market. With hundreds of possible sensor combinations, and a robust list of available configuration settings, the MX6 iBrid is ready to monitor oxygen, toxic and combustible gas, and volatile organic compounds (VOCs).

As your work changes, so can your MX6 iBrid. It uses five sensor slots to detect up to six gases. Each of those sensor slots accepts a variety of sensors, which means you can use the instrument with a PID sensor one day and an infrared sensor the next. What's more, settings allow you to adapt the instrument's behavior for your application. If you need to use a benzene PID response factor for one application, and butadiene for others, the familiar menu structure will allow you to quickly change settings.

The rugged MX6 iBrid carries our Guaranteed for Life™ warranty and is compatible with DSX™ Docking Stations. With a DSX Docking Station, maintenance is simplified and data becomes more than a spreadsheet filled with logged readings. Proactively manage your gas detection fleet—track trends, know when instrument maintenance will be required, and understand how your MX6 iBrid instruments are being used.

• 24 "Plug-and-Play" field-replaceable sensors including PID and Infrared options
• Up to 6 gases monitored simultaneously
• Simple, user-friendly, customizable, menu-driven navigation
• Five-way navigation button
• Durable, concussion-proof overmold
• Optional integral sampling pump with strong 30.5 meter (100 feet) sample draw
• Full-color graphic LCD is highly visible in a variety of lighting conditions
• Powerful, 95 dB audible alarm

72-PUA-E GX-3R Pro 3 Gas Personal Monitor - O2 / CO - CO2, 10,000 ppm, IR (ETA Aug 2019) - Li-Ion Battery Pack Only (No Charger) by RKI Instruments

The GX-3R Pro is the world's smallest 5-gas monitor weighing only 4.58 ounces and fits in the palm of your hand (2.9" W x 2.6" H x 1.06" D). It simultaneously monitors and displays 5 different gases. In addition to monitoring standard confined space gases, LEL, O₂, CO, & H₂S, the GX-3R Pro has a 5th channel where you can add infrared or toxic sensors. Two of the four sensor slots have interchangeable sensors providing flexible configurations, which can easily be changed in the field.

The GX-3R Pro comes equipped with Bluetooth wireless communication, man-down alarm, the choice of alkaline or rechargeable power supply, and a 3 year warranty. The Lithium-ion battery pack will operate for 25 hours and will fully charge in 3 hours.

The GX-3R Pro utilizes Bluetooth communication to display direct gas readings from the instrument to a phone app, which is available free on either iOS or Android phones. Automatic notifications can be programmed to send text or email messages, if there is an alarm event from the GX-3R Pro.

Safety supervisors will appreciate the non-compliance indicator. The instrument flashes it's 3 LED lights every 30 seconds in the following conditions; if the instrument has not been bump tested, or if calibration is due, or if there was a gas alarm event. The 3 LED lights will continue to flash once every 30 seconds until the non-compliance condition has been resolved. The 30 second interval is adjustable.

Features

• Smallest & lightest 5 gas monitor: 2.9" W x 2.6" H x 1.06" D , 4.58 ounces
• Simultaneous detection of 5 gases: LEL, O₂, H₂S, CO, and other optional sensors; H₂ Compensated CO sensor available
• Simple 2-button operation
• Bluetooth communication with iOS & Android App
• Non-Compliance Indicator
• 3 user adjustable alarm levels
• Panic Alarm - Tap instrument twice
• Man Down Alarm
• Impact resistant body
• Large full dot, auto-backlit display with auto-rotation
• Stealth mode for law enforcement
• Field replaceable sensors & filters
• Water and dust resistant design, IP66/68
• 3 Year warranty

Applications

• Personal monitoring
• Confined spaces
• Refineries/petrochemical
• Utilities
• Oil and Gas
• Water/wastewater
• Fire services
• Construction

*Please note we can only ship RKI products to customers within the United States

90434-00 Thermowell, 316 Stainless Steel, 6" Length, 3/4" Connection by Digi-Sense

To match your probe to a thermowell, first measure the distance from the probe's tip to the top of the thread (typical thread length is 0.5" for 1/2" NPT fittings). Next, match this length to the probe depth of the thermowell ("A" dimension). Other thermowell sizes and materials are available - call our Application Specialists for more information.

• Limited-Space Thermowell when you need a shorter insertion depth.
• Standard Thermowell for general-purpose applications.
• Heavy-Duty Thermowell for higher fluid velocity ratings.

SPXCDUSNC2R Sensepoint XCD RTD Transmitter, Carbon Monoxide (CO) 0-200 ppm, Stainless Steel Enclosure by Honeywell Analytics

Sensepoint XCD RTD from Honeywell Analytics makes it easy on your maintenance team, time and budget when faced with the challenge of monitoring toxic gases in Class I, Div 2 areas.

You can mount the unit up to 100 feet from the transmitter to obtain maximum gas detection coverage in areas not easily accessible or where the sensor would not be visible, as in high-or low-level concealed areas, or detection outside the room being monitored. XCD RTD offers unrivaled flexibility and performance via its easily recognizable display (traffic light pattern) to convey safety status, communication and mounting options, and onboard diagnostics.

Get More Return on Investment from the Practical Advantages of XCD RTD. Sensepoint toxic and oxygen sensors detect a wide variety of industrial gases at common measuring ranges, adding flexibility to your gas monitoring program, reducing your parts procurement costs and expanding your safety net.

Remote gas monitoring has never been this easy and cost-effective. Mount the sensor as shown in the illustration and view gas safety status via the large tri-color display on the transmitter, up to 100 feet away from the sensor. The advantages of this remote monitoring system are added safety, and reduced time spent on maintenance. There's no need for your team to climb ladders or bring in specialized equipment to view gas concentration readings or to conduct a safety audit. What's more, the removable sensor design of Sensepoint XCD RTD cuts downtime and eliminates the need for specialized training.

Reduce Cost of Ownership Over Life of the Product

• Cut stocking and procurement costs with a common transmitter platform
• Reduce maintenance time and expense with non-intrusive, one-man operation
• Simplify maintenance with plug-in, removable sensor
• Reduce inspection and training time with tri-color 'traffic light' display conveying safety status at a glance
• Simplify set-up and configuration with non-intrusive magnetic switches

Gain Added Flexibility, Reliability and Performance

• Extend gas sensing element up to 100 feet (30 meters) from transmitter; mount in the most difficult to access areas
• Reduce likelihood of human error via on-board diagnostics and easy-to-read display
• Protect against dust/water ingress with IP66/67 rated stainless steel or aluminum enclosure
• Prevent false alarms with auto-inhibit during maintenance
• Select sink or source 4-20mA output; integral or remote configuration
• Full range of accessories and purchase options let you choose the remote monitoring system that's right for your application

MX6-M163N511 MX6 iBrid Multi-Gas Monitor, CH4 (0-5%), CO, NH3, O2, CH4 (IR), Lithium-ion Extended Range Battery, MSHA/ANZEx, Pump, English by Industrial Scientific

The MX6 iBrid® is more than an intelligent hybrid of Industrial Scientific's best monitoring technologies—it's the most adaptable six-gas monitor on the market. With hundreds of possible sensor combinations, and a robust list of available configuration settings, the MX6 iBrid is ready to monitor oxygen, toxic and combustible gas, and volatile organic compounds (VOCs).

As your work changes, so can your MX6 iBrid. It uses five sensor slots to detect up to six gases. Each of those sensor slots accepts a variety of sensors, which means you can use the instrument with a PID sensor one day and an infrared sensor the next. What's more, settings allow you to adapt the instrument's behavior for your application. If you need to use a benzene PID response factor for one application, and butadiene for others, the familiar menu structure will allow you to quickly change settings.

The rugged MX6 iBrid carries our Guaranteed for Life™ warranty and is compatible with DSX™ Docking Stations. With a DSX Docking Station, maintenance is simplified and data becomes more than a spreadsheet filled with logged readings. Proactively manage your gas detection fleet—track trends, know when instrument maintenance will be required, and understand how your MX6 iBrid instruments are being used.

• 24 "Plug-and-Play" field-replaceable sensors including PID and Infrared options
• Up to 6 gases monitored simultaneously
• Simple, user-friendly, customizable, menu-driven navigation
• Five-way navigation button
• Durable, concussion-proof overmold
• Optional integral sampling pump with strong 30.5 meter (100 feet) sample draw
• Full-color graphic LCD is highly visible in a variety of lighting conditions
• Powerful, 95 dB audible alarm

BZ1-L345CQ0111 Radius BZ1 Area Monitor, LEL (CH4), O2, NO2, SO2, H2, CO2 (IR), Without Pump, UL/CSA, LENS™ Wireless, English by Industrial Scientific

When it comes to choosing equipment to protect your worksite from gas hazards, rely on the Radius® BZ1 Area Monitor. No other area monitor protects your workers longer in the field with less setup, user training, and time in the shop.

• Detect up to seven gases using 22 sensor options including PID
• Longest running area monitor with a typical run time of 7 days (168 hours)
• Extended Run Time Power Supply can extend battery to over 1 month
• Ultra-bright blue and red lights and attention-grabbing alarms with distinctive tones
• Audible alarms sound at 108 dB at 1 m to cut through high-noise environments
• Largest display of any area monitor on the market
• Intuitive text-based navigation and configuration
• Customizable alarm action messages such as "EVACUATE" or "VENTILATE"
• LENS™ Wireless enables communication between area monitors and Ventis® Pro5 personal monitors
• All-weather sensor deployment and 360-degree gas path for more accurate detection
• DualSense® Technology increases worker safety by using two sensors to detect the same gas

600-0050-004 Four-Gas Calibration Mix, 34L Aluminum Cylinder (CO 50ppm/H2S 10ppm/CH4 2.5%/O2 20.9%, Balance N2, 34L, 5/8"-18UNF by RAE Systems

Standard single-gas and multi-gas mixtures for monitor calibration

• Sizes range from 11 liters to 103 liters
• Convenient multi-gas mixtures
• Choose between demand-flow and constant-flow regulators

SD-1RI-XXX-HS SD-1RI Detector Head, Infrared Type with HART Communication & SIL (No Relay), Replace XXX with Specified Gas by RKI Instruments

RKI Instrument's model SD-1 Series smart combustible gas, toxic gas, oxygen, and organic vapor detector/transmitter is a robust and reliable explosion proof design for detecting LEL and ppm levels of hazardous atmospheres. In addition to measuring the common %LEL levels of methane, hexane and isobutane, for example, the SD-1 Series also has the capability of measuring a wide variety of toxic organic compounds in a PPM range such as acrylonitrile, ethylene oxide, n-methyl pyrolidone, methylene chloride and many others. This gives the SD-1 Series a unique niche in RKI's gas detector line-up. The SD-1 has an ATEX/IECEX approval for the explosion class ExdIICT5 and has an IP-65/67 ingress protection rating.

The SD-1 has a 4-20mA signal output as well as relay contacts for interfacing with other control systems or monitoring facilities. All SD-1 types are also available with HART communication instead of 4-20mA relay. SIL2 is available for the IR, EC and OX types. In facilitating non-intrusive conditions in hazardous atmospheres, the SD-1 can be calibrated and it's menus navigated with magnetic switches and a magnetic key.

Features

• Wide range of detectable gases: % LEL Combustibles, catalytic; % LEL Combustibles, IR; H2S, CO, & O₂; PPM for acrylonitrile, hydrogen, ethylene oxide, n-methyl pyrolidone, methylene chloride, and many others
• Sensor types include: Catalytic, Galvanic Cell, MOS, IR, & Electrochemical
• Direct digital display of gas readings
• HART Communication protocol or 4-20 linear output
• Available with SIL2 approval (IR, EC, OX versions)
• Easy maintenance using a magnetic key
• Self-diagnosis by microprocessor
• Low power operation (Maximum: 3W)
• Explosion proof: ATEX, IECEx, ExdIICT5

Applications

• LNG Terminal
• Petrochemical/Chemical plants
• Power plant
• Utilities
• Iron and steel works

*Please note we can only ship RKI products to customers within the United States

3300-37-001 CC 33 Fixed Transmitter with Propadiene (MAPD) (C3H4), Aluminum Housing, 0-100% LEL (MK 208-3), 4-20 mA No Relay by GfG

It has always been our aspiration to combine innovative ideas and technology with functional design. This is how quality and longevity come about. Attributes symbolic of the name GfG in gas measurement.

Are you looking for an innovative transmitter for flammable gases, but need explosion protection? Then a transmitter from the GfG 33 series is the right choice.

Robust housing for every application

The transmitters of the 33 series are flameproof encapsulated and fulfill the requirements of the type of protection "d". Depending on the application, you can choose the 33 transmitter with an epoxy-based aluminum or a pure stainless steel housing. In order to meet the quality requirements of our customers and our own standards in terms of durability, we use a particularly high-quality and durable Viton seal in the 33 series. This can withstand even the toughest operating conditions for many years.

Variants

GfG offers the CC 33 in two variants:

For conventional industrial The CC 33 is available in a lacquered die-cast aluminum housing with 10mm thick bulletproof glass. Applications with special conditions such as e.g. in the Food industry can be covered by a unpainted housing made of stainless steel with a 15mm thick bulletproof glass.

Operation by means of magnetic pin

The three magnetic switches behind the protective glass, which is up to 15mm thick, can be operated using the GfG magnetic pin. The GfG typical three-button operation is easy to understand. The menu is clearly structured and logically structured.

All transmitters of the 22, 29 and 33 series have a uniform user interface. The uniform operation and the logical system structure keep your training and maintenance effort as low as possible.

Proven and innovative is not a contradiction

The CC 33 works on the principle of catalytic heat generation (WT), a proven method for measuring combustible gases. The transmitters are equipped with high-performance electronics for voltage stabilization, processing of measured value output and temperature compensation. The long life of the sensors minimizes follow-up costs.

Sensor technology

With improved sensor technology and the unique GfG "chimney effect", the CC 33 transmitter for combustible gases has one of the fastest response times in the world. There are more crucial seconds left to initiate countermeasures and to bring people to safety.

Universal signal transmission

The measured values and status displays of the 33 series can be transmitted either analog or digital via the Modbus interface. Due to the different variants of signal transmission, a transmitter of the 33 series can be connected to almost any gas warning system as an additional measuring point or in exchange for existing transducers.

Signal processing

The embedded software of the 33 transmitter linearises the measurement signal and compensates for temperature influences. As a result, correct measured values are transmitted even in the event of weather-related temperature fluctuations. The execution of the software enables the detection of faults and, in the Modbus variant, the requirement of required service or maintenance work.

Smart sensors

Pre-calibrated sensor modules can be screwed directly into the sensor receptacle on the housing of the CC 33. The smart GfG sensors are pre-programmed with all the necessary parameters and can be used without much effort ("plug and play"). Sensor changes are shown in the display. (catalytic and electrochemical sensors)

Three freely programmable internal relays

The 33er transmitters can be used as a "stand-alone system". You can set the two alarm thresholds individually and freely program the optional three relays. You do not need a cable to a controller and you can nevertheless reliably switch safety-related devices.

With colored graphic display

The clearly laid-out graphic display makes it easy to read the device status, the current measured value and many other important information. In the event of an alarm, the display turns red. The large LEDs signal from a distance the current device status and thus serve the rapid information of your employees about any alarms or malfunctions.

Using the display, you can easily navigate through the clear device menu and make various settings, including calibration, depending on your user authorization.

Calibration

For regular function control with gas application, a calibration adapter is placed on the transmitter to ensure a safe and even gas supply.

*Please note we can only ship RKI products to customers within the United States

CES-J200 LED Explosion Proof Flood Light by Global Green

The housing is made of high-strength aluminum alloy + Tempered glass, it has more vibration and impact resistance.The excellent heat dissipation structure design. The efficiency and service life of the lamp can with stand high mechanical strength and temperature changes. The explosion-proof lamp has a variety of installation methods to choose, emergency optional (1.5 hours backup battery), and is very suitable for hazardous location lighting. This series hazardous location led floodlight adopts a sealed structure, which has high waterproof andanti-corrosion performance, and meets the UL1598A Marine Grade certification. it can be used in Class I, Division 2, GroupsA, B,Cand D hazardous location.

Features

• Patent designed to be Curved Fin Shape, maximize the best heat transmit.
• Aluminum alloy (ADC12).
• Lens -tempered glass (8mm) shock & vibration resistant, Super clear, >90% light transmit.
• LED: LM80 certified ,130Im/W +5, up to 240501m.
• Meanwell LED Driver, >90% driver efficacy
• Circuit design: 4KV/6KV Surge Protection power supply
• Protection: IP67, high protection grade for waterproof and dust-proof

Application

• Oil & Gas Exploration
• Drilling
• Oil Refinery
• Petrochemical Plant
• Power Plant
• Pharmaceutical Plant
• Heavy Industrial Storage Facility
• Paper mills
• Wastewater Treatment Plants
• Shipyards

LabSen 331 POM-body pH Electrode for Wastewater Treatment by Apera

Backed by proprietary Swiss sensor technology and materials, the LabSen® 331 POM Combination pH Electrode is designed for testing wastewater, emulsion, suspension, and samples containing protein and sulfide.

LabSen unique blue hemispherical glass membrane - faster response time, better repeatability, and built tough, highly resistant to general impact (totally differentiates from the traditional fragile glass bulb membrane).

Polymer Electrolyte - The solid polymer electrolyte is in direct contact with test samples. The anti-pressure capacity can reach up to 6 bars, making it ideal for testing suspension and wastewater. No more frustrating clogged junctions.

Long-Life Reference System - The LabSen 331 pH electrode adopts a long-life reference system, which is composed of a glass tube, AgCl, and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when the temperature changes. It improves the stability of reference electrode and extends the service life of the electrode.

The electrode uses a BNC connector, compatible with any pH meters that use BNC connectors, such as Apera Instruments MP511, PH850, PH8500, PH700, PH910, PH950, PH820 and PC820. The temperature sensor is not built-in. Users need to have a separate temperature probe (ex: Apera Instruments MP500) to enable ATC or manually input temperature to realize temperature compensation.

The electrode is backed up with a 6-month warranty by Apera Instruments.

• Proprietary pH sensor technology and materials from Switzerland
• Unique LabSen® blue glass membrane, faster response rate, better repeatability, and impact-resistant
• Polymer Electrolyte, ideal for testing wastewater and suspension. No more clogged junction
• Long-Life Reference System, improving the stability of reference electrode and prolong the service life of the electrode
• POM housing, highly resistant to corrosions