The HM-721EHS-BT independent carbon monoxide detector is powered by battery. It adopts the intelligent circuit design, and has the fault self-diagnosis function. When the carbon monoxide concentration gets to the alarm threshold, the product would emit the sound and flash alarm with the alarm sound pressure of 85dB/3m. The design of battery compartment on the top of the product allows for easy and convenient battery replacement. Meanwhile, the product consumes low power. Two 1.5V AA batteries can support the work of the product for more than 3 years. And the special design for battery compartment can avoid the user forgets to load the battery.
The independent carbon monoxide detector utilizes the electrochemical sensor. It is characterized by high sensitivity, strong conformability, low power consumption, and stable performance. After the product raises the alarm, the mute button can let the product enter mute state. Compliant with the international standard of EN50291, the product is shockproof and can be mounted into the vehicle for detecting carbon monoxide in the vehicle to provide protection.
Operating Voltage | DC3V (2 AA Alkaline Batteries) |
Standby Current | ≤ 10uA |
Alarm Current | ≤ 25mA |
Warm-up Time | 3min |
Mute Time | 10min |
Carbon Monoxide Alarm Concentration | 40ppm≤x< 75ppm, Alarm after 75 Minutes 75ppm≤x< 200ppm, Alarm after 25 Minutes 200ppm≤x, Alarm after 30 to 50 Seconds < 40ppm, Alarm Cleared and Product Reset |
Alarm Indication | Red LED and Buzzer |
Fault Indication | Orange LED |
Alarm Sound Pressure | ≥ 85dB/3m |
Working Temperature | -10℃ ~ 50℃ |
Ambient Humidity | ≤ 95% RH (No Condensation Phenmenon) |
Mounting Mode | Wall Mounted or Ceiling Mounted |
Dimension | Φ110×45mm |
Related Names
Toxic Gas Detection Alarm | Gas Leak Analyzer | Carbon Monoxide Monitor