Detects Detects |
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Environment Environment |
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Measurement Precision Measurement Precision |
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Measures Measures |
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Trigger Point Trigger Point |
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Environmental Rating Environmental Rating |
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Protection Type Protection Type |
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Detector Signal Type Detector Signal Type |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Specifications Met Specifications Met |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Battery Chemistry Battery Chemistry |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Portable Multi-Gas Detectors

When this detector senses high levels of combustible and toxic gases, it alerts you with an audible alarm, warning light, and vibrating alarm. You can adjust the alarm trigger points to suit your environment. There is also a motion sensor that sounds an alarm if the user becomes disabled.
A calibration check must be performed on the detector before each use to verify that it is working properly. The check requires a regulator and cylinder (sold separately).
Note: LEL is lower explosive limit.
Detects (Measuring Range) | Volume | Temperature Range, °F | Batteries Included | Environmental Rating | Each | |
Acetone, Butane, Hydrogen, Methane, Pentane, Propane, Toluene (0-100% LEL); Oxygen (0-30% Vol.); Carbon Monoxide (0-1,999 ppm); Hydrogen Sulfide (0-200 ppm) | 95 dBA @ 30 cm. | -40° to 140° | Yes | NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 NEC Zone 0 Groups IIC, IIB, IIA IP68 | 00000000 | 0000000 |
Surface-Mount Multi-Gas Detectors

An audible alarm and warning light alert you to the presence of propane, methane, hydrogen, and carbon monoxide. This detector has a relay for connection to auxiliary alarm systems. A programmable timer allows you to set whether the relay alarm is triggered immediately, or after 4 or 8 minutes of continuous gas exposure. The reset button suspends the alarm and restarts the cycle for 5 to 8 minutes in case of false alarm.
Detects (Trigger Point) , ppm | Volume | Temperature Range, °F | Ht. | Wd. | Dp. | Voltage | Cord Lg., ft. | Fasteners Included | Mounting Hole Dia. | Each | |
Propane (420); Methane (5,000); Hydrogen (200); Carbon Monoxide (150) | 80 dB @ 10 ft. | -20° to 120° | 6 3/4" | 3 1/4" | 1 3/4" | 120V AC | 6 | No | 3/16" | 0000000 | 0000000 |
Portable Multi-Gas Detectors with Probe

Use the probe to test the air in a hazardous area before entering. Great for confined spaces. This detector alerts you with an audible alarm, warning light, and vibrating alarm in the presence of combustible and toxic gases. You can adjust the alarm trigger points to suit your environment. There is also a motion sensor that sounds an alarm if the user becomes disabled.
A calibration check must be performed on the detector before each use to verify that it is working properly. The check requires a regulator and cylinder (sold separately).
Note: LEL is lower explosive limit.
Detects (Measuring Range) | Volume | Temperature Range, °F | Batteries Included | Includes | Tube Lg., ft. | Environmental Rating | Each | |
Acetone, Butane, Hydrogen, Methane, Pentane, Propane, Toluene (0-100% LEL); Oxygen (0-30% Vol.); Carbon Monoxide (0-1,999 ppm); Hydrogen Sulfide (0-200 ppm) | 95 dBA @ 30 cm. | -40° to 140° | Yes | Sampling Probe, Tubing Assembly, Rechargeable Lithium Ion Battery for Probe | 25 | NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 NEC Zone 0 Groups IIC, IIB, IIA IP68 | 00000000 | 000000000 |
Carbon Dioxide Meters

Measure and display real-time indoor ventilation quality. These meters operate with the included universal AC adapter or six AAA batteries. They have automatic baseline calibration. Transfer and view data on your computer using their USB cable and software.
Measuring Range, ppm | Temperature Range, ° F | Mount Type | Ht. | Wd. | Dp. | Power Source | Batteries Included | Number of Batteries Required | Battery Size | Electrical Connection | Voltage | Cord Lg., ft. | Each | |
0-9,999 | 32° to 122° | Portable | 8 1/4" | 2 1/2" | 1 1/2" | Battery, Electric | Yes | 6 | AAA | Plug In | 240V AC | 3 | 000000000 | 0000000 |
Oxygen Detectors

When your work area has too much or too little oxygen, these detectors alert you with an audible alarm, warning light, and vibrating alarm. You can adjust the high and low alarm trigger points to suit your environment.
A calibration check must be performed on the detector before each use to verify that it is working properly. The check can be performed with the press of a button.
The detector with a nonreplaceable battery should be thrown away at the end of its two-year lifespan.
Measuring Range, % Vol. | Volume | Ht. | Wd. | Dp. | Temperature Range, °F | Batteries Included | Battery Chemistry | Environmental Rating | Each | |
Detectors with Nonreplaceable Battery | ||||||||||
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0-25 | 95 dBA @ 30 cm. | 3 1/2" | 2" | 1" | -4° to 122° | Yes | Lithium | NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Group G NEC Zone 0 Groups IIC, IIB, IIA IEC Zone 1 Groups IIC, IIB, IIA IP67 | 00000000 | 0000000 |
Detectors with Replaceable Battery | ||||||||||
0-25 | 95 dBA @ 30 cm. | 3 1/2" | 2" | 1" | -4° to 122° | Yes | Lithium | NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Group G NEC Zone 0 Groups IIC, IIB, IIA IEC Zone 0 Groups IIC, IIB, IIA | 00000000 | 000000 |
Batteries (Pkg. of 1) | 0000000 | Pkg. | 000000 |
Stick-On Carbon Monoxide Indicators

Place this indicator anywhere you need to detect and warn about the presence of carbon monoxide. The circle in the center darkens when carbon monoxide is detected and returns to its normal color when exposed to fresh air. Replace indicator every 12 months. An unopened indicator has a shelf life of three years.
Trigger Point, ppm | Ht. | Wd. | Backing Type | Each | |
100 | 2 1/4" | 2 1/4" | Adhesive | 0000000 | 00000 |
Portable Carbon Monoxide Detectors

When these detectors sense high levels of carbon monoxide, they alert you with an audible alarm, warning light, and vibrating alarm. You can adjust the alarm trigger point to suit your environment.
A calibration check must be performed on the detector before each use to verify that it is working properly. The check requires a regulator, tubing, and cylinder (sold separately).
The detector with a nonreplaceable battery should be thrown away at the end of its two-year lifespan.
Measuring Range, ppm | Volume | Temperature Range, °F | Ht. | Wd. | Dp. | Batteries Included | Environmental Rating | Each | |
Detectors with Nonreplaceable Battery | |||||||||
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0-500 | 95 dBA @ 30 cm. | -4° to 122° | 3 1/2" | 2" | 1" | Yes | NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Group G NEC Zone 0 Groups IIC, IIB, IIA IEC Zone 1 Groups IIC, IIB, IIA IP67 | 00000000 | 0000000 |
Detectors with Replaceable Battery | |||||||||
0-2,000 | 95 dBA @ 30 cm. | 14° to 104° | 3 1/2" | 2" | 1" | Yes | NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IEC Zone 0 Groups IIC, IIB, IIA IP67 | 00000000 | 000000 |
Methane Detectors

An audible alarm and warning light alert you to the presence of methane. This detector has a relay for connection to auxiliary alarm systems. A programmable timer allows you to set whether the relay alarm is triggered immediately, or after 4 or 8 minutes of continuous gas exposure. The reset button suspends the alarm and restarts the cycle for 5 to 8 minutes in case of false alarm.
Trigger Point, ppm | Volume | Temperature Range, ° F | Ht. | Wd. | Dp. | Voltage | Cord Lg., ft. | Fasteners Included | Mounting Hole Dia. | Each | |
10,000 | 80 dB @ 10 ft. | -20° to 120° | 6 3/4" | 3 1/4" | 1 3/4" | 120V AC | 6 | No | 3/16" | 0000000 | 0000000 |
Hydrogen Sulfide Detectors

When these detectors sense high levels of hydrogen sulfide, they alert you with an audible alarm, warning light, and vibrating alarm. You can adjust the alarm trigger point to suit your environment.
A calibration check must be performed on the detector before each use to verify that it is working properly. The check requires a regulator, tubing, and cylinder (sold separately).
The detector with a nonreplaceable battery should be thrown away at the end of its two-year lifespan.
Measuring Range, ppm | Volume | Temperature Range, °F | Ht. | Wd. | Dp. | Batteries Included | Environmental Rating | Each | |
Detectors with Nonreplaceable Battery | |||||||||
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0-100 | 95 dBA @ 30 cm. | -4° to 122° | 3 1/2" | 2" | 1" | Yes | NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Group G NEC Zone 0 Groups IIC, IIB, IIA IEC Zone 1 Groups IIC, IIB, IIA IP67 | 00000000 | 0000000 |
Detectors with Replaceable Battery | |||||||||
0-200 | 95 dBA @ 30 cm. | 14° to 104° | 3 1/2" | 2" | 1" | Yes | NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IEC Zone 0 Groups IIC, IIB, IIA IP67 | 00000000 | 000000 |
Early-Warning Surface-Mount Hydrogen Detectors

This detector triggers a “caution” alert when a small amount of hydrogen is detected and a second “danger” alert if levels continue to rise. When hydrogen concentration reaches 1% by volume, a yellow warning light illuminates and the first relay closes to trigger a remote exhaust fan and/or alarm. When hydrogen reaches 2%, a red warning light illuminates, an alarm sounds, and the second relay closes to activate another remote exhaust fan and/or alarm.
Use the optional remote and cable to keep an eye on the detector’s alert status from a distance. Remote has a buzzer and the same yellow and red warning lights as the detector.
Trigger Point, % Vol. | Volume | Temperature Range, ° F | Ht. | Wd. | Dp. | Electrical Connection | Voltage | Fasteners Included | Mounting Hole Dia. | Each | |
1; 2 | 60 dB @ 10 ft. | 14° to 104° | 7" | 4 3/4" | 2 1/2" | Screw Terminals | 120V AC, 240V AC | No | 3/16" | 00000000 | 0000000 |
Surface-Mount Hydrogen Detectors

An audible alarm and warning light alert you to the presence of hydrogen. This detector has a relay for connection to auxiliary alarm systems. A programmable timer allows you to set whether the relay alarm is triggered immediately, or after 4 or 8 minutes of continuous gas exposure. The reset button suspends the alarm and restarts the cycle for 5 to 8 minutes in case of false alarm.
Trigger Point, ppm | Volume | Temperature Range, ° F | Ht. | Wd. | Dp. | Voltage | Cord Lg., ft. | Fasteners Included | Mounting Hole Dia. | Each | |
8,000 | 80 dB @ 10 ft. | -20° to 120° | 6 3/4" | 3 1/4" | 1 3/4" | 120V AC | 6 | No | 3/16" | 0000000 | 0000000 |
Propane Detectors

An audible alarm and warning light alert you to the presence of propane. This detector has a relay for connection to auxiliary alarm systems. A programmable timer allows you to set whether the relay alarm is triggered immediately, or after 4 or 8 minutes of continuous gas exposure. The reset button suspends the alarm and restarts the cycle for 5 to 8 minutes in case of false alarm.
Trigger Point, ppm | Volume | Temperature Range, ° F | Ht. | Wd. | Dp. | Voltage | Cord Lg., ft. | Fasteners Included | Mounting Hole Dia. | Each | |
4,200 | 80 dB @ 10 ft. | -20° to 120° | 6 3/4" | 3 1/4" | 1 3/4" | 120V AC | 6 | No | 3/16" | 0000000 | 0000000 |
Air Particle Counters

Check your indoor air quality (IAQ) by measuring the amount of particles present. These counters are often used to monitor dust levels in workshops, check for particles in classrooms, and measure filter efficiency in HVAC systems. The sensor probe detects and identifies particles of six different sizes, helping you confirm that your clean room complies with ISO Class requirements. First, use the zero count filter to establish a baseline before taking a sample. Then, either measure the amount of air particles detected within a set time range or the amount of air particles detected within a certain air volume. Counters store up to 10,000 readings in their internal memory, and you can transfer data to your computer via Ethernet or USB connection—no special software required. Compact, lightweight, and battery powered, these counters are portable and able to operate in tight spaces. They’re CE marked as compliant with European health, safety, and environmental standards.
Battery | |||||||||||
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Measures | Measurement Precision | Flow Rate, cfm | Temperature Range, °F | Features | Includes | Specifications Met | Life, hrs. | Charger Included | Batteries Included | Each | |
Air Particles By Volume, Air Particles Over Time | 0.3 microns 0.5 microns 1 micron 2 microns 5 microns 10 microns | 0.1 | 50° to 100° | Backlit Display Isokinetic Sensor Probe Memory Storage | Carrying Case Ethernet Cable Filter Adapter Protective Cap USB Cable Zero Count Filter | CE Marked, ISO 21501, JIS B 9921 | 10 | Yes | Yes | 0000000 | 000000000 |
Carbon Monoxide Detectors for Fire Alarm Systems

When this detector senses carbon monoxide, it sends a signal to your control panel and sounds an alarm. Multiple units can be linked in tandem so all detectors will sound when any one of them is triggered.
Volume | Mount Type | Lg. | Wd. | Dp. | Tandem Signaling Capable | Electrical Connection | Voltage | Current | Specifications Met | Each | |
85 dBA @ 10 ft. | Surface | 4 1/2" | 3" | 1 1/2" | Yes | Screw Terminals | 12V DC 24V DC | 0.04 A @ 12 V DC 0.04 A @ 24 V DC | UL Listed | 000000 | 0000000 |