Gas loop with sensor particularly sensitive to both Methane and LPG. Adjusted in the air emits a sound impulse per second; As soon as the sensor is in a polluted environment, the pulse rate increases. It comes in elegant nylon case.
 

Standard Specifications:

•      Sensitivity: 20 ppm
•      Power supply: 4 x 1.5V (batteries included)
•      Autonomy: 8 hours
•      Auto Sleep: 10min
•      Briefcase: 220x160x40mm