Sensitivity: 40 ppm
Sensor: Semiconductor
Indicators: acoustic signal and optically by stage-LED
Flex holder: 440 mm long
Warm up time: max. 50 sec.
Refresh time: 2 sec
Work temperature: -5~45 °C
Supply: 4 AA batteries, 1.5 V
Size: 130 x 70 x 35 mm
Weight: 300 g