1. Protects you and your family from two threats: carbon monoxide and .2. Sounder Alarm - The BH-H3 Detector offers a loud 75-decibel pulsing alarm that will sound to alert you to a potential problem.3. Alarm Status: When the combustible concentration reaches thealarm value, the red alarm indicator keep flashing and the Alarm keeps1 sound per second. When the concentration of carbon monoxidereaches the alarm value, the red alarm indicator is keep on light, theAlarm keeps 2 sounds per second.4. 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. Two alarms in one detects carbon monoxide and . Three convenient mounting 1. AV voltage: AV 220V2. Working temperature: 0-503. Environment Humility: 10%-95%4. Detecting : Combustible & CO5. Sensor type: Semiconductor sensor6. Sampling: Diffuse naturally7. Alarm set point: Combustible : 10% / CO: 100PPM8. Warming time: 3min9. Accuracy: Combustible : 3% / CO: 50PPM10. Response time: 60sresumeautomatically30sModel Number: BH-H3Measurement Range: 100PPM Type: CO type: CO&Natural Weight: 300gPlug Type:EU Plug,it applies to Indonesia, , , , and so onVoltage:AC220Vcolor:WhiteMaterial:plasticPackage Contents:1 x Detector(Tag random, cannot the specified tag)Only the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.