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91076 11" Rowe-Ackermann Schmidt Astrograph (RASA 11) V2 Optical Tube Assembly (CGE Dovetail) by Celestron

Capturing impressive deep-sky astroimages is easier than ever with Celestron's Rowe-Ackermann Schmidt Astrograph (RASA) V2, the perfect companion to today's top DSLR or astronomical CCD cameras. This fast, wide-field f/2.2 system allows for shorter exposure times compared to traditional f/10 astroimaging, without sacrificing resolution. Because shorter sub-exposure times are possible, your equatorial mount won't need to accurately track over extended periods. The short focal length also lessens equatorial tracking demands. In many cases, autoguiding will not be required.

RASA 11 V2 builds on the legacy of Celestron's Schmidt Cameras, which allowed astrophotographers to produce images with much shorter exposure times on film in the 1970s.

Today, with CCD sensor sizes as large as film or larger, the RASA 11 V2 offers a 43.3mm optimized image circle to capture pinpoint stars on the largest imaging chips. Optical performance for huge sensors with diagonals of up to 52mm wide is still excellent.

Combine this large image circle with a focal length of just 620mm and you have an instrument suitable for wide-field imaging, creating huge mosaics of the night sky, surveying, and even comet hunting.

Optical Performance

The RASA 11 V2 features optics with 4-element rare-earth glass for images free of false color and aberrations like coma and field curvature. The optical quality and spot size across the entire image circle are unprecedented for an astrograph in this price range—or even that of a much more expensive instrument. The design also provides minimal vignetting.

Advanced Features

RASA 11 V2 utilizes the new Ultra-Stable Focus System (USFS). At the heart of this system is a precision linear ball bearing. The bearing serves to minimize focus shift (unwanted lateral motion of the primary mirror during focusing which causes shifting of the image) and mirror flop (movement of the primary mirror when the telescope is pointing to different positions in the sky). The USFS is also compatible with the optional Celestron Focus Motor (#94155-A). The integrated 12V DC MagLev fan reduces cooldown time and provides optimal airflow through the dust filtered optical tube.

Engineered as a complete astroimaging system, every component of the RASA 11 V2 is optimized for peak performance with DSLR and astronomical CCD cameras. Down to the thickness of the glass used in the included fully-multicoated optical window or optional imaging filter, every component of the system has been taken into careful consideration to work together seamlessly. The Dovetail CGE bars on the top of the optical tube provides a connection for use of optional accessories like a guidescope.

• Fast, wide-field 11" f/2.2 optical design with rare-earth glass for images free of false color, coma, and field curvature
• Large 43.3mm optimized image circle maintains pinpoint stars to the far corners of even the largest astroimaging sensors, while the usable field extends even further to 52mm for larger format sensors
• New Ultra-Stable Focus System (USFS) minimizes focus shift and mirror flop
• Integrated air-cooling system features a quiet, high-output 12V MagLev fan and vents with mesh filters to prevent dust ingress
• Common camera adapters (T-thread and M48) included for easy attachment to popular CCD and DSLR cameras

GrowControl™ MPX2 Dosing Panel (dual pump, A size panel) by Agrowtek

MPXP Modular Dosing Panels automate pH and ORP control in large or small tanks for re-circulating or drain-to-waste fertigation systems, DWC buckets, aquaponics, aquariums, pools, and other general industrial/commercial processes. These pre-assembled panels come ready to dose! Just connect the water manifold to a circulation pump and plug in power! Controller, dosing pumps and water manifold are all conveniently mounted on a stainless steel back panel simplifying installation and providing a clean appearance. Available with single, dual or quad metering pump. Each pump can be configured for ORP or pH up/down dosing with independent dose sizes. PHX pH controller with LCD display allows advanced configuration of the pumps and dosing parameters, manual pump priming, as well as graphing, alarms, data logging and more in a simple to use menu interface. Monitor remotely from any web browser and send email alerts with the optional WiFi module.

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

7100000A0001 Gasurveyor 700 Infrared Gas Leak Detector, LEL / Volume (Alkaline) by GMI

Utilising the latest infrared gas detection technology in a robust and reliable design, the Gasurveyor 700 (GS700) is a highly configurable instrument with leading performance and a user-friendly interface which makes it the perfect choice for all gas utility applications.

Ensuring compliance

Intelligent data-logging functionality together with optional GPS mapping simplifies data gathering. Our Instrument Management System improves fleet management by providing access to field usage reports, calibration history, investigation mapping and many other bespoke reports; making it easier for our customers to demonstrate compliance.

Natural gas discrimination

Quickly determines the source of gas leaks, whether it's pipeline gas or naturally occurring biogas; saving valuable time and reducing detection related costs.

Flexible configuration

The GS700 can be configured to meet specific application needs and can be customised to suit a range of user requirements, settings and languages.

Application ready

Highly configurable to our customers' gas detection needs, providing flexibility of use without compromising on performance.

Application modes include:

• Gas Leak Outdoors
• Purge
• Search
• Barhole
• Confined Space

Additional Features

• LEL & Volume Gas (infrared)
• Optional sensors including: PPM, O2, CO, H2S
• Barhole Mode - configurable
• Soft-key Operation
• Communication: IrDA & Bluetooth (optional)
• 360° Alarms
• Lightweight & Rugged
• Ingress Protection - IP55
• Alkaline or Rechargeable battery options

72-PPX-C GX-3R Pro 1 Gas Personal Monitor - O2 - No Additional Toxic Sensor - Li-Ion Battery Pack with 100-240 VAC 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

VP5-VJ001100214 Ventis Pro5 Personal Gas Monitor, CO2/CH4 (IR), CO/H2S, Li-ion Battery, Desktop Charger, No Pump, Black, ATEx/IECEx, LENS Wireless, German 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.

66-6993-20-W AirLink 6900 Wireless Explosion Proof Transmitter, VOC (10.6 eV PID) 0-200 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

CS22-738 CS22 Fixed Transmitter, Ethylene (C2H4) MK 147-5, no display, 4-20 mA, 0 - 3,000 ppm by GfG

Wherever toxic or flammable gases and vapors must be monitored without requirements for explosion protection, the use of the CS22 is recommended.

Proven and cost-effective

The CS22 works on the principle of chemisorption (CS). Thanks to a wide range of monitorable gases and multiple measurement ranges, the CS22 offers a wide range of uses, from laboratories to industrial applications to refrigeration systems.

Transmitters with electrochemical sensors (EC), are also used with toxic and flammable gases. In contrast, the CS22 is a much more durable and cost-efficient solution. However, the environmental parameters must fit.

Communicates analog and digital

The measured values and status information of the CS22 can be transmitted either analog (4-20 mA or 0.2-1 mA) or digital (RS-485). This allows not only the use in combination with any GfG controller, but also the connection to programmable logic controllers (PLC).

Smart measured value processing

Industry-wide, the trend is towards smart units, such as the CS22, whose integrated electronics process the data already at the measuring point. The linearization of the measurement signal, compensation of temperature influences, detection of malfunctions and information on the next service or maintenance interval are just some of the advantages that result.

Variants for every requirement

The basic version of the CS22 is sufficient for many applications. If a measured value display on site is desired, there is also a variant with display and acoustic alarm.

CS22 Basic variant for a wide range of catalytic sensors
CS22 D with display to show the current measured value

In combination with GfG's powerful controllers, both variants are the right choice for a wide range of gases to be monitored.

CS150-K=0.1/BNC Light-Duty Contacting Conductivity / TDS Sensor with Automatic Temperature Compensation (ATC), Graphite, 12mm, K=0.1, BNC by Sensorex

The CS150 and CS150TC conductivity probes are a cost effective solution for measuring conductivity in light industrial and laboratory applications.

Sensors feature measuring surfaces. The durable epoxy body construction provides a rugged and dependable sensor for portable and laboratory use. Suitable for use with most portable conductivity meters.

By adding a simple mounting gland fitting, customers may use these in process applications. Mount them in-line, in a pipe "T" fitting, or submerse them into a tank.

Features:

• Ideal for laboratory and light duty process applicationsAvailable with or without ATC (temperature sensor)
• Easy to submerge in a tank or mount inline in a pipe
• Cell constant choices of 0.1 or 1.0
• Compatible with most portable and benchtop meters

BZ1-K5BJ0Q0214 Radius BZ1 Area Monitor, LEL (Pentane), SO2, HCN, CO/H2S, CO2 (IR), No Pump, ATEx/IECEx, LENS Wireless, German 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

MX6-0003Q214 MX6 iBrid Multi-Gas Monitor, O2,CO2IR,LE,P,G 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

MX6-C5ABQ211 MX6 iBrid Multi-Gas Monitor, H2, SO2, HCl, HCN, CO2 (IR), 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

VP5-LJ6Y2101111 Ventis Pro5 Personal Gas Monitor, LEL (Methane), CO/H2S, NH3, O2 (Long-life), Li-ion Extended Run Time Battery, Desktop Charger, No Pump, Orange, 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.

VTS-L1232211103 Ventis MX4 Personal Gas Monitor, LEL (Methane), CO, H2S, O2, Li-ion Extended Run Time Battery, Desktop Charger/Datalink, Pump, Orange, UL/CSA, Spanish by Industrial Scientific

The Ventis® MX4 is a four-gas monitor with the portability and size of a single-gas monitor. Eliminate the need for extra monitors and transition seamlessly from personal monitoring to confined space entry with the Ventis® Slide-on Pump— ideal for operators who wear their gas monitors primarily for personal protection but occasionally require a pump for confined space entries.

• Detect up to four gases with a wide range of sensor options
• Select alarm set points, set latch alarms, disable instrument shutdown while in alarm, and more
• Save time and reduce human error with maintenance and usage data available from iNet Control software
• Available with or without an integral pump, or with the Ventis Slide-on Pump for ultimate flexibility
• Non-pumped instruments compatible with 12-hour, 18-hour, or 20-hour batteries

The Ventis® Slide-on Pump

The Ventis® Slide-on Pump is ideally suited for operators who wear their gas monitors primarily for personal protection but occasionally require a pump for confined space entries. Available in black or safety orange and powered by its own battery, the slide-on pump is compatible with the Ventis MX4 and Ventis® Pro5 Multi-Gas Monitor.

• Convenient Sampling – Sample draw distance of up to 50 feet provides convenient sampling in a wide range of applications
• Easy to Attach – No tools are required to attach or remove the Ventis Slide-on Pump to or from the monitor
• Uses Same Batterys and Chargers as Ventis – Monitor and pump each use the same batterys, and can easily be exchanged between instruments
• Flexible Battery Options – Three available battery options make this pump extremely flexible in the field

VP5-01B02111111 Ventis Pro Series, CO, HCN, Li-ion Ext Range, Desktop Charger, With Integral Pump, Orange, 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.

2447500 Digital Titrator Reagent Set: Hardness, Calcium 100-4000mg/L by AquaPhoenix

Reagent set for the determination of Calcium Hardness by EDTA Digital Titrator Titration Method (Hach method 8204). Range: 100-4000 mg/L as CaCO3. Set contains CalVer® 2 Calcium Indicator Powder Pillows, Potassium Hydroxide Solution (8 N) and 0.800 M (EDTA) Digital Titrator Cartridge for approximately 40-100 tests.

• Accurate results - when and where you need them
• Fast and Flexible
• Versatile
• Economical

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

BZ1-L123DQ1211 Radius BZ1 Area Monitor, LEL (Methane), CO, H2S, O2, NO, CO2 (IR), Pump, ATEx/IECEx, 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

VTS-M0002010101 Ventis MX4 Personal Gas Monitor, CH4 (0-5%), Li-ion Ext Range, No Charger, Pump, Black, UL/CSA, English by Industrial Scientific

The Ventis® MX4 is a four-gas monitor with the portability and size of a single-gas monitor. Eliminate the need for extra monitors and transition seamlessly from personal monitoring to confined space entry with the Ventis® Slide-on Pump— ideal for operators who wear their gas monitors primarily for personal protection but occasionally require a pump for confined space entries.

• Detect up to four gases with a wide range of sensor options
• Select alarm set points, set latch alarms, disable instrument shutdown while in alarm, and more
• Save time and reduce human error with maintenance and usage data available from iNet Control software
• Available with or without an integral pump, or with the Ventis Slide-on Pump for ultimate flexibility
• Non-pumped instruments compatible with 12-hour, 18-hour, or 20-hour batteries

The Ventis® Slide-on Pump

The Ventis® Slide-on Pump is ideally suited for operators who wear their gas monitors primarily for personal protection but occasionally require a pump for confined space entries. Available in black or safety orange and powered by its own battery, the slide-on pump is compatible with the Ventis MX4 and Ventis® Pro5 Multi-Gas Monitor.

• Convenient Sampling – Sample draw distance of up to 50 feet provides convenient sampling in a wide range of applications
• Easy to Attach – No tools are required to attach or remove the Ventis Slide-on Pump to or from the monitor
• Uses Same Batterys and Chargers as Ventis – Monitor and pump each use the same batterys, and can easily be exchanged between instruments
• Flexible Battery Options – Three available battery options make this pump extremely flexible in the field