Power supply: 4.5V AA *3 battery
Alarm concentration: 150PPM (+/-50PPM) CO gas
Quiescent current: 30Ua alarm current: 15mA (without relay), 30mA (with relay)
Working range: temperature: 4 - 38,
Humidity: 25% - 85%
Alarm: 3M at 85Db, frequency constraint KHz, red LED flashing fast
Static instructions: red LED flash once per 30 seconds of low voltage alarm: every 30 seconds a "Jack" sound
Test button: press a few seconds to send alarm sound to show the alarm is normal