Measurement method: NDIR
Range: CH4: 0-5%vol (0-100%LEL), 0-100%vol
Accuracy: For range 0-1%vol: ±0.06%
For range 1-100%vol: ±6% of reading
For range 0-100%LEL: ±5% LEL
Warm up: 30s
Response time T90: <25s at 20℃
Working voltage: 3.5-5.5v
Working current: 75-80mA
Output voltage: 0-4-2v/TTL
Digital signal format: RS 232 data bit:8; stop bit:1; check bit: null
Baud rate: 9600 bps
Working temperature: -40℃ to 70℃
Dimensions: ¢20*19mm (except pin)
Output pin: 5 pins
Lifespan: ≥ 10 years