Features:

--ASIC control, reliable without false alarming

--field audio and visible alarming

--powered by one 9V battery(Carbon Zinc 6F22 or Alkaline 6Lr61).

--simple installation

--wall and ceil etc mounted for home use

--excellent reliablity&high stability

--self-test function,Auto-reset

--durable sensor head

--Less affected by other organic solvent

--high accuracy

--loud 85 decibel alarm

--alarm in conjunction with red light falshes continuously when CO exists.

--low battery indication(one "chirp" every 40 senconds)

--the unit needs to be tested every weekly

Technical Specification:

* Sensor:Electrochemical CO sensor

* Operating voltage:9V DC (power by battery)

* Response time:30s

* Alarming level:150ppm CO +/-50°

* Alarm model:sound & flash alarm