Alarm Gas and Co Combination Detector RC412COM wit

FeatureFeatures: * Excellent reliability & high stability. * Durable sensor head. * Self test function * Visual and audible alarm function * Low voltage warning * Sensor-fault detection * Can be connected with valve * Hush function in alarm status * Less affected by other organic solvent. * Loud sound signal of 85 dB at alarm mode. * Three-year limited warranty. * Low power consumption * Test button to test the units electronics and verifies proper unit operation. * Easy installation with a plastic bracket. * Widely use for home, coal station, colliery, car and so on. * Detect all sorts of combustible gases, such as coal gas, liquid petroleum gas and natural gas, carbon monoxide and monitor automatically. Diagrammatic SpecificationSpecification: * Power supply: AC220V/50 60Hz& 9v backup battery * Sensor: Electrochemistry Co and semi-conductor Gas Sensor * Static current: ≤40MA * Alarm current: ≤80MA * Static consume: lower than 0.6 W * Alarm consume: lower than 2W * Alarm volume: ≥85dB within 1 meter * Operation Ambient Condition: 4 38°C, 25 85%R.H. * Alarm density: Carbon monoxide: 50PPM: 60-90 minutes 100PPM: 10-40 minutes 300PPM: less than 3 minutes 400PPM: Immediately Coal gas: 1000 5000ppm, Liquid petroleum gas: 1000 5000ppm, Natural gas: 1000ppm 5000ppm *.Responding time: Gas ≤30S *.Alarm output: frequent on or off signal, control exhaust fan, electrical magnetic valve signal. With 220VAC or 110VAC,9V Battery Backup or 12V Adaptor