$500 - $750

MCXL-X000-Y-OR GasAlertMicroClip XL Detector, Oxygen (O2) - Yellow Housing, OR Version (Other Regions, 3-pin UK plug) by BW Technologies

The easy to wear, slim and compact GasAlertMicroClip provides affordable protection from atmospheric gas hazards. For standard operation with features you can count on, opt for the GasAlertMicroClip XT. For extended battery life, especially in cold weather, choose the GasAlertMicroClip XL. Both offer visual compliance at a glance with the flashing, green IntelliFlash™. Easy onebutton operation reduces training time and lets workers focus on the job at hand. For simple, cost-effective management of your records, calibration and bump testing, choose BW's MicroDock II automatic test and calibration system and Fleet Manager II software.

• Easy and comfortable to wear; thin and lightweight
• Easy operation and straightforward training with one-button simplicity
• Easy visual compliance with flashing, green IntelliFlash™
• Easy and cost effective to own

Additional GasAlertMicroClip features:

• Choose the GasAlertMicroClip XL for cold weather performance
• IntelliFlash™ verifies operation and compliance to both the user and supervisor
• Tamper-proof, one button operation
• Powered by a rechargeable lithium polymer battery

Standard features of BW multi-gas products:

• Continuous LCD shows real-time gas concentrations
• Compact and lightweight design makes it comfortable to wear
• Water-resistant
• Simple automatic calibration procedure; compatible with BW MicroDock II automatic test and calibration station
• Full function self-test of sensor, battery status, circuit integrity and audible/visual alarms on start up
• Bright wide-angled visual alarm bars
• Built-in concussion-proof boot
• Multi-language support in English, French, German, Spanish and Portuguese
• Conveniently manage your fleet using Fleet Manager II

Part Number: MCXLX000YOR

0560 4401 440 Air Velocity & IAQ Measuring Instrument by Testo

The testo 440 air velocity and IAQ meter combines all the benefits of a compact handheld device with intuitive measurement menus and a comprehensive selection of air velocity & IAQ probes. This means you have all measuring tasks on air conditioning and ventilation systems reliably under control.

You can connect the testo 440 to a large selection of digital probes, the testo Smart Probes, or even numerous Testo temperature probes, allowing for numerous configurations to meet your needs. The clearly structured menus for measuring volume flow in ducts and at outlets, cooling/heating load, K-factor, turbulence, mold indication and even a data logging mode are stored on the instrument for additional convenience. These menus enable you to accomplish the relevant measuring task more quickly, more efficiently and more reliably than ever before. Reports can also be exported as excel files via the USB interface or printed out directly on site.

The testo 440 air velocity & IAQ meter is available in two versions. The standard testo 440 and the testo 440 dP model version, which includes an integrated differential pressure sensor. This makes measurements at filters as well as Pitot tube and K-factor measurements possible.

• Intuitive: Clearly structured measurement menus for volume flow, heating & cooling load, K-factor, turbulence, data logging, mold indication, and more.
• Convenient: Testo 440 kits include instrument-specific wireless and wired probes that offer greater measuring convenience and the instrument also connects to testo smart probes.
• Space-saving: A universal Bluetooth or wired handle for all probes means more applications, with less equipment.
• Efficient: Internal memory for up to 7,500 measurement points, a USB interface for data export and optional printout of all your measuring values.

Kit Includes:

• Air velocity & IAQ meter
• 3 x AA batteries
• USB cable
• Calibration protocol

EC950 Benchtop Cond./TDS/Salinity Meter Kit with TestBench by Apera

Basic Features

• Comes with Apera TestBench that incorporates a flexible electrode holder, an intelligent stirrer, and buffer organizers altogether, streamlining the process of pH measurement and calibration.
• Intuitive operating navigation with natural language and graphics
• Multi-language operating system (English, German, Spanish, Mandarin)
• Automatic calibration, automatic temperature compensation, self-diagnosis.
• Manual data logger with 200 groups of storage

Conductivity Features

• The 2401T-F glass conductivity/temp. electrode designed for research-level conductivity measurement from 0 to 200mS/cm at ±1% F.S accuracy
• 1 to 4 points automatic calibration with calibration instruction and self-diagnosis
• Single tap to switch from conductivity to TDS and salinity
• Automatically recognizes conductivity standard solution (84μS/cm, 1413μS/cm, 12.88mS/cm, 111.8mS/cm).
• Standard BNC conductivity connector, RCA connector for a temperature probe, NTC 30KΩ thermistor

11049 Nexstar 4SE Computerized Telescope by Celestron

Celestron's signature orange-tube telescope combines advanced features and excellent optics in one easy-to-use system, the NexStar 4SE. It's the perfect choice for your first serious telescope, offering striking views at an economical price.

• Celestron's iconic "orange tube" design is updated with all the latest features to provide the best stargazing experience for beginners and experienced observers alike.
• 4-inch aperture provides excellent light-gathering ability at an affordable price. You'll get impressive views of the Moon and planets, along with deep sky objects like the Orion Nebula, while retaining a compact form factor.
• Fully automated GoTo mount with database of 40,000 celestial objects automatically locates and tracks objects for you.
• SkyAlign technology gets your telescope aligned and ready to observe in minutes. Even if you're unfamiliar with the night sky, you can easily align your telescope on any three bright objects.
• Unique single fork arm design and sturdy steel tripod all break down into separate components for easy transport and quick assembly.

Our Founder's Vision, Reimagined for the 21^st Century

In the 1970s, Celestron's Schmidt-Cassegrain telescopes brought the hobby of astronomy to the masses and established Celestron as the world's premier telescope maker. Our founder, Tom Johnson, invented Celestron's proprietary method of producing Schmidt corrector plates for superior views and maximum portability. Johnson believed in creating high-quality optical instruments at an affordable price, and inspired a generation of amateur astronomers.

Four decades later, we've improved upon this design by adding cutting-edge features, while staying true to our founder's intent.

View the Universe s Most Impressive Celestial Objects

The 4SE's four-inch primary mirror packs enough light-gathering ability to observe the best that the solar system has to offer: Saturn's rings, the cloud bands on Jupiter, and geographic features on the surface of the Moon. When it comes to deep sky objects, take your 4SE to a dark-sky site and you'll see hundreds of pinpoint stars in the Hercules Globular Cluster, the spiral arms of the Whirlpool Galaxy, and more.

Revolutionary Single Fork Arm Mount

We know the best telescope is the one you will use most often. That s why Celestron's engineers created NexStar SE's unique, patented single fork arm mount. It's perfectly portable and makes setup quick and easy. What's more, the NexStar SE breaks down into several lightweight and compact pieces, making it easy to transport, even in small vehicles. You'll have no problem getting the NexStar SE to your favorite observing site, or setting it up quickly in your backyard.

Of course, it's what's inside the mount that really counts. Sturdy construction from high-quality components give NexStar SE the pointing and tracking accuracy needed to observe and follow your favorite targets with push-button ease. Use the included NexStar+ hand control to locate over 40,000 celestial objects, or take a Sky Tour and let your telescope show you the best objects currently visible.

Aligning your telescope is simple and painless, too, thanks to SkyAlign. This process makes alignment as easy as 1-2-3: just center three bright objects in your eyepiece and press ALIGN. For even easier alignment, attach our StarSense AutoAlign and your NexStar SE aligns itself!

Advanced Features Let the NexStar SE Grow with You

The NexStar SE is compatible with all the high-tech accessories advanced users love. Provide GPS coordinates to your telescope with SkySync, or add automatic alignment functionality with StarSense AutoAlign.

Its built-in wedge allows you to track long exposures. if you're interested in imaging the Moon and planets, pair your NexStar 4SE with one of our Skyris cameras. From your first observing session and for years to come, the NexStar SE is your trusted companion.

Part Number: SR-D1-4R

MCXL-XU00-Y-EU GasAlertMicroClip XL Detector, Combustible (% LEL, Unfiltered), Oxygen (O2) - Yellow Housing, EU version (Europe) by BW Technologies

The easy to wear, slim and compact GasAlertMicroClip provides affordable protection from atmospheric gas hazards. For standard operation with features you can count on, opt for the GasAlertMicroClip XT. For extended battery life, especially in cold weather, choose the GasAlertMicroClip XL. Both offer visual compliance at a glance with the flashing, green IntelliFlash™. Easy onebutton operation reduces training time and lets workers focus on the job at hand. For simple, cost-effective management of your records, calibration and bump testing, choose BW's MicroDock II automatic test and calibration system and Fleet Manager II software.

• Easy and comfortable to wear; thin and lightweight
• Easy operation and straightforward training with one-button simplicity
• Easy visual compliance with flashing, green IntelliFlash™
• Easy and cost effective to own

Additional GasAlertMicroClip features:

• Choose the GasAlertMicroClip XL for cold weather performance
• IntelliFlash™ verifies operation and compliance to both the user and supervisor
• Tamper-proof, one button operation
• Powered by a rechargeable lithium polymer battery

Standard features of BW multi-gas products:

• Continuous LCD shows real-time gas concentrations
• Compact and lightweight design makes it comfortable to wear
• Water-resistant
• Simple automatic calibration procedure; compatible with BW MicroDock II automatic test and calibration station
• Full function self-test of sensor, battery status, circuit integrity and audible/visual alarms on start up
• Bright wide-angled visual alarm bars
• Built-in concussion-proof boot
• Multi-language support in English, French, German, Spanish and Portuguese
• Conveniently manage your fleet using Fleet Manager II

Part Number: MCXL-XU00-Y-EU

7300-70MHFT 70W Metal Halide Wide-Area Portable Fixture with Magnetic Mount & Feed-Thru by Western Technology

The 7300 Metal halide/HPS mountable area light is made with high impact polycarbonate with liquid tight fixture. This is an ideal choice for a variety of your temporary job site lighting needs.

Features

• Liquid tight fixture
• Made with high impact polycarbonate
• Optional power feed through & GFCI for multiple unit operation
• Illuminates 240° area
• Uses 70 watt high pressure sodium or metal halide bulbs
• Additional options available

0635 9432 Vane Probe (Ø 100 mm) includes Temperature Sensor, Fixed Cable by Testo

Use the vane probe with the compatible testo multifunction measuring instrument (please order separately) to measure air velocity, volume flow and temperatures up to +70 °C.

Vane probe including temperature sensor - features

The readings of the vane probe are transmitted to your measuring instrument via Bluetooth, up to a distance of 20 m.

The clearly structured measurement menu for volume flow enables the measuring instrument to be operated intuitively. The volume flow is precisely calculated thanks to convenient input of the size and geometry of the duct cross-section. Timed and multi-point mean calculation, average volume flow, current reading and min./max. values are displayed in the measuring instrument.

Particularly useful: press the button on the vane probe to operate the measuring instrument. For example, to store individual readings for multi-point mean calculation or to start and stop measurement series for mean calculation over time.

Wireless and space-saving: more applications, less equipment

Endlessly versatile: a universal handle can be connected to all probe heads - so you can master more applications using less equipment and save space. The Bluetooth handle makes it more convenient to carry out your measurement and guarantees less cable clutter in the case.

Or order the cable handle to connect testo probe heads. This is an advantage if Bluetooth signals are not permitted. If the vane needs to be replaced in the distant future, you can change the probe head.

If required, you can also fit the vane probe with the extendable telescope with 90° angle and, if necessary, the telescope extension (both can be ordered separately; in combination 2 m long). This makes it easy to measure at ceiling outlets.

Intelligent calibration concept

You will get exceptionally accurate measurement results with the digital vane probe, because the measuring instrument makes measurement uncertainty a thing of the past. You only need to send the probe head in for calibration - so the measuring instrument remains in continuous use.

Areas of application for the vane probe with Bluetooth

Air/ceiling outlets: Use the vane probe to determine air velocity and volume flow at air outlets. During loop-pattern scanning of the grille's cross section, the air velocity values are integrated and averaged across a large area of 100 mm. As a result, precise measurement results are achieved with the loop measurement.

For measurements at ceiling outlets: the extendable telescope (1.0 m long) with easy-to-read scaling and 90° angle is easy to attach to the vane probe. The 90° angle ensures that the probe is positioned correctly under the ceiling. For high ceilings, you can also use the telescope extension, attaining a total length of 2 metres (please order the extendable telescope and telescope extension separately).

Plate outlets, ventilation grilles and swirl outlets: For convenient, accurate measurements at plate outlets and ventilation grilles, we recommend using the vane probe with the testovent 417 funnel set (please order separately). This guarantees simple testing of incoming/outgoing air - such as in the controlled ventilation of living spaces.

If you add in the volume flow straightener (please order separately), an impressively high level of precision can be achieved when carrying out measurements at swirl outlets.

• Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow and air temperature
• Precise: get the right results in next to no time, even in turbulent air flow - using the optionally available funnel set and volume flow straightener
• Convenient: Bluetooth connection between measuring instrument and probe, with a practical button on the handle for storing individual readings, convenient measurement at ceiling outlets with optional telescope (up to 1 m)
• Intelligent calibration concept

Includes:

Vane probe (Ø 100 mm) with Bluetooth including temperature sensor (consisting of 100 mm vane probe head, handle adapter and Bluetooth handle), bracket for testovent measurement funnel, 4 x AA batteries and calibration protocol.

0560 4402 440 Air Velocity & IAQ Measuring Instrument includes Differential Pressure by Testo

The testo 440 air velocity and IAQ meter combines all the benefits of a compact handheld device with intuitive measurement menus and a comprehensive selection of air velocity & IAQ probes. This means you have all measuring tasks on air conditioning and ventilation systems reliably under control.

You can connect the testo 440 to a large selection of digital probes, the testo Smart Probes, or even numerous Testo temperature probes, allowing for numerous configurations to meet your needs. The clearly structured menus for measuring volume flow in ducts and at outlets, cooling/heating load, K-factor, turbulence, mold indication and even a data logging mode are stored on the instrument for additional convenience. These menus enable you to accomplish the relevant measuring task more quickly, more efficiently and more reliably than ever before. Reports can also be exported as excel files via the USB interface or printed out directly on site.

The testo 440 air velocity & IAQ meter is available in two versions. The standard testo 440 and the testo 440 dP model version, which includes an integrated differential pressure sensor. This makes measurements at filters as well as Pitot tube and K-factor measurements possible.

• Intuitive: Clearly structured measurement menus for volume flow, heating & cooling load, K-factor, turbulence, data logging, mold indication, and more.
• Convenient: Testo 440 kits include instrument-specific wireless and wired probes that offer greater measuring convenience and the instrument also connects to testo smart probes.
• Space-saving: A universal Bluetooth or wired handle for all probes means more applications, with less equipment.
• Efficient: Internal memory for up to 7,500 measurement points, a USB interface for data export and optional printout of all your measuring values.

Kit Includes:

• Air velocity & IAQ meter
• 3 x AA batteries
• USB cable
• Calibration protocol

T4-HOCA-H2-IT T4 Personal Gas Monitor, 4 Gas - H2S, O2, CO (H2 resistant), CH4 % LEL, Alternate Alarm Levels / Certifications by Crowcon

T4 integrates innovative safety features and an intuitive, rugged design to provide advanced protection for those working in harsh environments. This portable multigas detector, which is exceptionally easy to use and service, protects against the four most prevalent gas hazards: carbon monoxide (CO), hydrogen sulphide (H₂S), flammable gases and oxygen (O₂) depletion.

Features

• TWA resume function - unique to T4, this innovative feature ensures toxic gas exposure is calculated accurately over an entire shift, even if T4 is switched off for a break or during travel to another site.
• 18 hour battery life - safely work multiple or longer shifts between charges, covered by the 18 hour battery life.
• Backlit display - large, clear display with backlight and option to flip the screen 180° for easy viewing while worn.
• Rugged design - with a thick anti-shock rubber casing and drop-tested to 13.1 feet on concrete, T4 provides dependable operation under the most demanding use.
• Water & dust-resistant to IP65 & IP67 - provides protection in the harshest environments.
• Dedicated sensors - one sensor for every gas ensures effective, fast and reliable detection.
• Positive safety indicator - a simple 'traffic light' status indicator which, at a glance, provides visual assurance of operational and compliance status to both users and supervisors. Green light - Working safely. Red light - Attention required
• Intrinsically safe - ATEX approved and UL Class 1 Div 1 for safe operation in a wide range of hazardous environments.
• Multiple alarms - audible 95dB alarm, bright red/blue LED's and vibrating alerts provide effective warning to gas hazards.
• Easy operation - large single button and intuitive menu system minimize training and allow easy operation while wearing gloves.

0560 4160 410-2 Pocket Pro Air Velocity, Temp & RH Meter by Testo

The compact testo 416 anemometer with permanently attached vane probe with telescopic handle (max. 890mm). Volume flow is shown directly in the display. Accurate volume flow calculation due to easy input of duct area. Timed and multi-point mean calculation provide information on mean volume flow. Min/max values can also be shown in the display. The Hold function enables you to freeze the current reading in the display.

• Direct display of volume flow
• Multi-point or timed mean calculation
• Max/min values
• Hold button to freeze readings
• Display light
• Auto-Off function
• TopSafe, the indestructible protective case (optional)
• TopSafe, instrument protection against dirt and knocks (optional)

65-2321SS S2 Series Detector / Amp / Stainless Steel J-box, Non Explosion Proof, Oxygen, Capillary Sensor, 0 - 25% volume by RKI Instruments

Having a reliable gas sensor is detrimental to the safety and security of workers in potentially unstable work environments. In many cases, the decision to use a gas detection device with a reliable sensor can be the difference between life and death. RKI Instruments understands the reliability of gas sensors should be a top priority for workplace safety managers. Their team of experts works diligently to incorporate the most advanced technologies with the highest industry standards.

For nearly 20 years, RKI Instruments has worked in the gas detection industry. Its line of products leads the industry in innovation and technology. Every year, the company commits to achieving a higher level of productivity and delivering the best gas detection products on the market. With the introduction of their high performing, low cost S2 Sensor Transmitter, RKI is fulfilling that commitment.

S2 Sensor/Transmitter

The RKI S2 Sensors and Transmitters use state of the art sensor technology to detect common gas hazards. Their efficient design and cost effectiveness make them an industry choice for atmospheric monitoring. The sensor transmitters can be used in both indoor and outdoor conditions and are designed to interface with RKI controllers or PLC/DCS systems.

The sensors are available in explosion proof casing for monitoring LEL, H2 specific, oxygen, H2S, CO2, and carbon monoxide. These sensors also have flame arrestors and are approved for use in hazardous environments. The oxygen, H2S, CO, and CO2 sensors are available in non-explosion proof models. The sensors provide highly specific and quick detection and are long lasting. The sensors can be quickly replaced while on the field and do not require any tools.

Explosion proof S2 Sensor/Transmitter

The explosion proof sensors use a variety of detection mechanisms including catalytic for LEL and LEL- H2 specific; metal oxide semiconductor for hydrogen; galvanic cell technology for oxygen; electrochemical for hydrogen sulfide and carbon monoxide; and infrared for carbon dioxide, methane, and hydrocarbons. A hydrogen specific sensor transmitter is not available. Each of these detection methods come with their own measuring range specifications and response times varying from 20 seconds to 45 seconds. These sensors are stainless steel and are housed in a cast aluminum explosion proof J-Box (a stainless steel J-Box is also available).

Non-explosion proof S2 Sensor/Transmitter

The non-explosion proof sensors use galvanic cells for oxygen detection; electrochemical technology for hydrogen sulfide, carbon monoxide, and other toxics; and infrared technology for carbon dioxide detection. The response times vary between 20 seconds and 60 seconds depending on the targeted gas, and the measuring ranges vary as well. These sensors are plastic or aluminum and housed in an explosion proof J-Box.

Accessories

The S2 Sensor/Transmitter has numerous accessories available to meet the individual workplace's needs. Such accessories include calibration adaptors, flow through adaptors, remote horns and lights, calibration kits, battery backups, splash guards, air aspirator adaptors or panels, and data loggers.

Each sensor comes standard with a one year warranty for materials and workmanship.

*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

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

2106B1209 Sensepoint Hazardous Area Approved Gas Detector, ppm Combustible 3/4NPT ATEX by Honeywell Analytics

The Sensepoint range of flammable, toxic and Oxygen gas detectors offer users a high quality, low cost solution to their industrial gas monitoring needs. Installation in potentially explosive atmospheres is made by the use of a suitable Ex d or Ex e approved junction box. The industry standard outputs from Sensepoint are connected to either a choice of Honeywell Analytics' controllers or 3rd party DCS/ PLC systems. Both flammable and toxic versions are certified to the latest ATEX/IECEx safety and performance standards.

The flammable detector is available in either % LEL or PPM detection range versions and provides an industry standard mV bridge output. Typical life expectancy is greater than 5 years, after which the detector is simply replaced with a new one.

The toxic detectors are supplied pre calibrated for easy installation and provide an industry standard 2 wire 4-20mA loop output. User connections are Ex d, while front end Intrinsic Safety (IS) design allows for easy exchange of the replaceable sensor while powered. IS design also removes the need for a sinter enabling very fast speed of response and detection of 'sticky' gases such as Chlorine and Ammonia.

Sensepoint has proven its suitability across a wide range of demanding applications by delivering high performance and reliability at an affordable cost.

Fit For Purpose

• Flammable, toxic and Oxygen versions available
• High performance, low cost
• Suitable for new and retro fit applications

Proven Sensor Technology

• Surecell™ electrochemical sensors
• Poison resistant catalytic bead
• Fast and reliable
• Typical 2 to 5 years operational life

ATEX/IECEx Certified

• Complies with the latest standards
• Hazardous area approval and performance
• IP65/67 for use in harsh environments

Easy to Use

• Factory set operation
• Simple to replace
• Minimal training required

Range of Accessories

• Weatherproof cap
• Flow adaptor
• Duct mounting kit
• Collecting cone

73-0026-01 Gaswatch 3 Portable Gas Monitor, CO/O2 combination, with wrist band by RKI Instruments

The GasWatch 3 is the world's smallest and lightest single-gas monitor. Weighing just 1.6 ounces, its compact form affords great comfort and flexibility in how you choose to wear it. It can be worn on your wrist as a watch, or clipped into your breathing zone on your lapel, hard hat or other safety equipment with its alligator clip.

The 5 different GasWatch 3 models can protect you from oxygen deficiency [GW-3(O2)], exposure to carbon monoxide [GW-3(CO)] or exposure to hydrogen sulfide [GW-3(H2S)]. A hydrogen compensated model [GW-3(C-)] can protect those who work in steel mills, refineries or other environments where hydrogen is present from carbon monoxide exposure. The dual sensor model [GW-3(CX)] can simultaneously protect you from oxygen deficiency and carbon monoxide exposure.

A small, field-replaceable, coin-type lithium-ion battery gives the GasWatch 3 up to 4,000 hours of continuous operation. The hydrogen compensated CO can operate up to 2,500 hours, and the dual sensor CO/O2 model will get up to 2,000 hours of continuous operation.

The great battery life coupled with a 3-year warranty* gives the GasWatch 3 tremendous value and a low cost of ownership.

Note: *2-year for galvanic sensor on the O2 model

Features

• 5 versions to choose from: CO, H2S, O2, CO/O2, or H2 compensated CO
• 3-year warranty (2 years for O2 sensor)
• Up to 4,000 hours of operation
• Light and compact "watch type" design
• Comfortably wear in your breathing zone
• Available with watch band or alligator clip
• Automatic backlight during alarm
• Sturdy IP-66/68 rated design
• Water, dust and radio frequency (RF) resistant
• Non-compliance indicator

Industry Applications

• Refineries
• Petrochemical facilities
• Sewage treatment plants
• Fire departments
• Chemical plants
• Tunnels
• Mines
• Hazardous waste sites

*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