4 in 1 combo handheld Gas Detector  

Features: 

*4 in 1 combo Gas Detector

*Handheld 4 in 1 gas detector

*Intelligent voice prompt

*Build-in 1800mAh rechargeable lithium battery

*Adopt high accurate gas sensors

*Detect: EX (various combustible gases ), H2S, CO, O2

*Lower power consumption ensures Long working time

*MCU processing control
*Alarm output：Voice prompt, LCD indication, Sound, flash & vibration  
*Portable design, small and powerful, easy to carry and use.
*Protective Grade：IP65

Parameter:

Power：DC3.7V（1800mAh lithium battery）

Detect: EX, H2S, CO, O2

Charge time：4h-6h
Warm-up time: 60s

Response time: ≤30s

Alarm output：Voice prompt, LCD indication, Sound, flash & vibration  

Working temperature：-20°C-50°C

Working Humidity:≤95%RH 

Protective Grade：IP65 

Size: 140*73*32mm