Detection Gas
Combustible Gas
Sensitivity
Variable, Minimum 50 PPM (methane)
Alarm Mode
sound alarm and light alarm
Response Time
Instantaneous
Warm-Up Time
< 20 Seconds
Battery Type
3 * AA 1.5V Alkaline Batteries (NOT Included)
Continuous Operation Time
9 hours(slightly vary with working condition)
Probe Length
35.5cm / 13.98in