%LEL Gas Monitor

The combustible gas concentration detector measures the volume percentage of combustible gases in the air using catalytic combustion or infrared absorption principles. When gas comes into contact with the sensor, changes in conductivity or light intensity are converted into concentration signals. It is used for leak warnings and safety monitoring in settings such as petrochemical plants and mines.
Selection
When selecting, consider matching the type of gas being detected with the sensor type. Catalytic combustion sensors are suitable for most flammable gases, while infrared sensors offer good resistance to poisoning. Check the explosion-proof rating to ensure it suits the environment; the standard for industrial use is Exd II CT6. Pay attention to the response time, which should be below 30 seconds, and the calibration cycle, typically around 3–6 months. Prioritize models with audible and visual alarms, as well as data logging functions.

Instruments

Using catalytic combustion detection principle, the range covers 0-100% LEL, Response Time ≤ 30 seconds, with flameproof structure and a variety of signal output, support remote monitoring and infrared remote control operation, through a number of international safety certifications.

$ 190.00

Using catalytic combustion detection principle, the range covers 0-100% LEL, Response Time ≤ 30 seconds, with flameproof structure and a variety of signal output, support remote monitoring and linkage control.

$ 190.00

It adopts flameproof structure design, supports 4-20mA, RS485 and switch output, Response Time ≤ 30 seconds, Detection error ≤ +/- 3% F.S. It can be operated by remote control without opening the lid, with sound and light alarm function, suitable for dangerous environment gas monitoring.

$ 254.00

Using catalytic combustion principle to detect 0-100% LEL range, Response Time ≤ 30 seconds, support 4-20mA and RS485 output, with flameproof structure and remote alarm function.

$ 383.00

Using catalytic combustion principle to detect 0-100% LEL range, Response Time ≤ 30 seconds, with flameproof structure and multi-signal output, support remote monitoring and customized Sensor.

$ 202.00

Using Semiconductor Sensor, Response Time T90 is less than 10 seconds, detecting a variety of combustible gases, range 0~ 50% LEL, with sound and light alarm and LED large screen display.

$ 141.00

Using catalytic combustion Sensor, range 0~ 100% LEL adjustable, with automatic zero correction and temperature compensation functions, support 4~ 20mA output and infrared remote control debugging, suitable for dangerous areas 1 and 2 zones.

$ 143.00

Using catalytic combustion Sensor, range 0~ 100% LEL adjustable, with infrared remote control debugging and 4~ 20mA output, support alarm record query and automatic temperature compensation, suitable for hazardous environment.

$ 152.00

Using catalytic combustion Sensor, range 0~ 100% LEL adjustable, with automatic zero correction and temperature compensation function, support 4~ 20mA and RS485 output, infrared remote control safety adjustment.

$ 122.00

Using infrared NDIR detection principle, range 0-5% Vol, Response Time ≤ 30 seconds, support 4-20mA, RS485 and switch output, with explosion-proof structure and remote monitoring capability.

$ 332.00

Using catalytic combustion Sensor, range 0~ 100% LEL, with automatic zero correction and temperature compensation function, support infrared remote control adjustment and 4~ 20mA standard output, suitable for dangerous places 1 and 2 zones.

$ 135.00

Using catalytic combustion Sensor, range 0~ 100% LEL adjustable, with automatic zero correction and temperature compensation function, Response Time does not exceed 60 seconds, support 4~ 20mA and RS485 output.

$ 135.00

Explosion-proof enclosure design ensures stable operation in harsh environments, can simultaneously monitor multiple particle size dust concentration without changing the cutter, Measurement range 0.01-100 mg/m ³, built-in protective gas curtain to prevent Optical inspection system contamination.

$ 5043.00

Dedicated to calibrating ammonia Gas sensing electRodes, capacity 250ml, providing accurate calibrating support to ensure Reliability of detection data.

$ 110.00

The melting temperature error is only +/- 1 ° C, allowing for remote observation of the melting state. It can be directly pasted without complex installation and is suitable for temperature monitoring of a variety of electrical equipment.

$ 89.00