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HABOTEST HT66 Mini Gas Detector Household Handheld Combustible Gas Detecting Gauge with Long Probe Gas Leak Monitor Tester PPM Meter Methane Concentration Alarm Instrument adopts gas-sensitive semi-conductor sensor for fast detecting and has wide reaction (50~1000ppm). long probe allows you to freely detecting in a narrow place. portable to use and store, providing you a better using experience. powered by 2pcs AAA batteries (NOT included), with low battery indication, long standby and easy for replacement. when combustible gas leakage is detected, buzzer will sound and concentration indicator will be on. when no concentration is measured within 5 minutes, meter will automatic shutdown. One button to on-off manually.

Specifications:
Operating Condition: 0~50, 20~80RH
Material: ABS
Alarm Mode: Visible and audible
Reaction Time: ≤500ppm: Approx. 5s, >500ppm: Approx. 2s
Reaction Sensitivity: Approx. <50ppm (methane)
Package Weight: 93g / 3.29oz
Warm- Time: Approx. 30s
Sensor: Gas-sensitive semi-conductor
Item Size: 330 * 40 * 26mm / 12.99 * 1.57 * 1.02in
Item Weight: 52g / 1.85oz
Supply: 2 * 1.5V AAA battery (NOT included)
Storage Condition: -10~60, 20~80RH
Package Size: 34 * 5.5 * 3.5cm / 13.59 * 2.17 * 1.38in
Reaction : 50~1000PPM (methane)


Packing List:
1 * Manual (English)
1 * Gas Detector