Features: 1. Protects you and your family from two threats: carbon monoxide and explosive gas.2. Sounder Alarm ?C The BH-H3 Gas Tester offers a loud 75-decibel pulsing alarm that will sound to alert you to a potential problem.3. Alarm Status: When the combustible gas concentration reaches the alarm value, the red alarm indicator keep flashing and the Alarm keeps 1 sound per second. When the concentration of carbon monoxide reaches the alarm value, the red alarm indicator is keep on light, the Alarm keeps 2 sounds per second.4. Peak Level Memory - Recalls the highest CO concentration detected5. Test/Reset Button - Tests unit??s electronic circuitry operation and allows you to immediately silence the alarm.6. Two alarms in one detects carbon monoxide and explosive gas7. Three convenient mounting options Specification: 1. AV voltage: AV 220V /110V2. Working temperature: 0-50??3. Environment Humility: 10%-95%4. Detecting gas: Combustible gas & CO5. Sensor type: Semiconductor sensor6. Gas Sampling: Diffuse naturally7. Alarm set point: Combustible gas: 10%LEL / CO: 100PPM8. Warming time: 3min9. Accuracy: Combustible gas: ??3%LEL / CO: ??50PPM10. Response time: ??60s resume automatically??30s Package included: 1 x Gas Tester1 x English User Manual
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