Portable methane alarm

Portable methane detectors utilize catalytic combustion or infrared principles to measure the concentration of methane in the air. When methane comes into contact with the sensor, it either reacts or absorbs infrared light, generating an electrical signal that triggers audible and visual alarms. These devices are used for rapid on-site detection in applications such as gas inspections, mine safety, and pipeline leak detection.
Selection
When selecting, focus on a detection range covering 0-100% LEL, with explosion-proof certification and an IP54 protection rating. The sensor lifespan is approximately 2-3 years, and it is necessary to check the calibration cycle and response time. Prioritize models with data logging and vibration alarm functions, ensuring the battery life meets the requirements for a single shift.

Terms

Standards

Instruments

ABS + PC shell is sturdy and durable, equipped with 2.0 inch 320 * 240 resolution display screen, supports methane, O2, H2S, CO four Gas detection, Response Time is the fastest 20 seconds, battery life is 8 hours, with sound and light vibration triple Alarm mode.

$ 344.00

With high definition color screen display and four Alarm modes, support wireless communication and remote monitoring, Response Time T90 ≤ national standard, Protection Rating IP66, compact, portable and anti-interference.

$ 231.00

Support simultaneous detection of 4 gases, integrated temperature and Humidity detection, with Internet of Things remote monitoring function, Response Time T90 ≤ national standard, Protection Rating IP66, suitable for a variety of Installation methods.

$ 301.00

Using electrochemistry principle detection, the range is 0-200ppm, and the Response Time is ≤ 30 seconds. With explosion-proof structure, multi-signal output and remote alarm function, it supports customized wireless transmission and is suitable for harsh industrial environments.

$ 409.00

With explosion-proof IP66 Protection Rating, support -40~ 55 ℃ wide temperature work. Using high definition color screen visual distance of 10 Meters, support multi-signal output and remote paraMeter configuration, built-in relay can control peripheral equipment, with zero automatic correction and a variety of alarm functions.

$ 243.00

Maximum support 4 kinds of gas simultaneous detection, integrated temperature and humidity monitoring and physical + software double compensation, using dual temperature and humidity design and 10 Meters visual distance high definition color screen, Protection Rating up to IP66 and operation temperature range -40~ 55 ℃.

$ 393.00

Using infrared NDIR detection principle, range 0-5% Vol, Response Time ≤ 30S, support 4-20mA, RS485 and switch output, with explosion-proof structure and remote alarm function, Sensor life up to 5 years.

$ 332.00

Pump sampling ensures stable airflow, fast detection Response; can store 100,000 data, support different interval recording; with double alarm function, battery life of 10-60 hours, adapt to -40~ 55 ℃ working environment.

$ 254.00

With 350~ 9999ppm wide range detection range, Response Time of about 90 seconds, support sound and light dual alarm, built-in temperature measurement function, portable design weighs only 170 grams.

$ 290.00

High Accuracy opticalin strument designed with refraction principle, compact and portable can be put into the pocket, LCD large screen 3 seconds fast display, automatic temperature compensation function, more than 10,000 times of use, with automatic shutdown and power alarm function.

$ 251.00

The test load of the device can reach 300KN, accuracy +/- 0.5%, with Data storage, peak hold and upper and lower limit alarm functions, support a variety of units automatic exchange and serial data output.

$ 1053.00

Portable design volume 145 * 52 * 23mm, support 100 sets of data storage and automatic calculation, with upper and lower limit alarm and USB communication functions, relative Indication Error only 0.5%, suitable for a variety of force value unit switching.

$ 231.00

Support simultaneous detection of 4 kinds of gases, integrated temperature and Humidity detection, Response Time T90 ≤ national standard, Protection Rating IP66, with Internet of Things remote monitoring and a variety of Installation methods.

$ 277.00

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

Built-in High Accuracy Sensor, Measurement range 10% -100% FS, Indication Error less than +/- 0.5%, Peak hold, Data storage and automatic alarm functions, Support for automatic conversion of various units and PC connection to achieve Linear dispersion test.

$ 294.00