
OEM Underground Pit Gas Monitor with Loud Alarm and LED Display. Multi-Function Monitoring: Detects combustible gas, pressure, water level, and manhole cover status simultaneously. Wireless Independent Operation: No external power needed; uploads data via NB-IoT or 4G with 3.6V lithium battery. Customizable Sensor Options: Extended sensors for Oxygen, CO, and H2S are available; pressure range is customizable. Explosion-Proof Safety: Certified Ex Ib IIC T4 Gb marking for safe operation in hazardous underground environments. Long Service Life: Designed for stable performance with an overall service life of up to 5 years. IP68 Ingress Protection: Fully dust-tight and waterproof, suitable for harsh underground chamber conditions. OEM/ODM Customization: Full customization, logo printing, and design options available for packaging and products. Comprehensive Calibration: Every product undergoes calibration before leaving the factory with a certificate provided.