Model No.: ECO-201
Power Supply: 9V Battery
Sensor: Electrochemical CO Sensor
Alarm Style: Immediate, self-reset
Sensitivity: 150+/-50 ppm CO Concentration
Response Time: <30seconds
Audibility: 85dB (3m distance)Frequency 3.0+/-0.5KHZ
LED Indication: Standby Red LED flashes once around every 30 seconds. Alarm Red LED quick flashes with unit chirping(Unit sounds three times, stops for 1.5s, then repeat).

Power Consumption: <0.3mW
Shelf Life: 5 years
Operation Ambient: 2degreeC~45degreeC, 10~90%RH
Mounting  Wall/Ceiling mounting
Size: Diameter 100mm * height 35mm weight 0.15 Kg
Standards  : CE, China CJ3057.