Product Description
Tiandi (Changzhou) GJG100J Mining Laser Methane Sensor
The Tiandi (Changzhou) GJG100J is a highly reliable mining laser methane sensor engineered for the precise and continuous monitoring of methane (CH4) gas concentrations in underground coal mines. Featuring an intrinsically safe explosion-proof design (Ex ia I Ma), it ensures maximum operational safety in hazardous, volatile environments. The sensor delivers high accuracy over a wide measuring range of (0~100)%CH4 and supports versatile output signals, including RS485 and (200~1000)Hz, for seamless integration with mine safety systems. Built to withstand harsh mining conditions, it boasts an IP65 protection rating. The device also comes fully equipped with a clear digital display and a remote controller for convenient on-site operation, calibration, and maintenance.
Technical Specifications:
- Brand: Tiandi (Changzhou)
- Model: GJG100J
- Measuring Range: (0~100)%CH4
- Explosion-Proof Type: Ex ia I Ma
- Working Voltage: (9~24.5)V DC
- Working Current: ≤50mA
- Output Signal: RS485 or (200~1000)Hz
- Protection Class: IP65
- Ambient Temperature: (0~40)℃
- Intrinsically Safe Parameters: Ui: DC24.5V, Ii: 1.3A, Ci: 0.1μF, Li: 22μH, Pi: 24.09W
- Associated Equipment: KDW65, KDW65B, KDW65C, KDY65D, KDW160-18, KDW180-24

Tiandi (Changzhou) GJG100J Mining Laser Methane Sensor
Ensure optimal safety in underground coal mines with the Tiandi GJG100J Mining Laser Methane Sensor. Featuring an intrinsically safe Ex ia I Ma explosion-proof rating, a wide (0~100)%CH4 measuring range, IP65 protection, and RS485 output for reliable, real-time gas monitoring.
| Brand | Tiandi (Changzhou) |
|---|---|
| Model | GJG100J |
| Part No. | 1032769044348 |
| Category | Electrical |
| Link | https://www.echuan-hydraulic.com/product/tiandi-changzhou-gjg100j-mining-laser-methane-sensor |
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