Combustible Gas Detector pen DY80

Highly sensitive, noise signal proof
Easy one key operation
Audible and visible alarm
Long battery life, auto power off
Mold pantented, patent code 20080302099958
MODEL DY80
Detection natural gas(NG), methane.
Sensor planar semiconductor
Warm up time within 60 seconds
Rnage of detection CH4: 0 ~ 100% LEL
Alarm Frequency 2.713kHz / 30ms
2.713kHz / 100ms
Range of alarm ~2% LEL (LED Yellow)  
~10% LEL (LED Red)  
Alarm time within 20 seconds
Alarm mode LED, buzzer
Working temperature -20C ~ 70C
Working humidity less than 90% RH
Power source AA 1.5V * 2
Dimension 220 * 20 * 20 mm
Weight approx. 80g