CO monitor controlled ventilation

[Rabindra]

Hi All:

I am designing a basement ventilation system Switched ON and OFF by carbon monoxide sensor, with a set point on 25 ppm of CO and preferrably of adjustable range (like a thermostat). The sensor would, through relay, switch ON and OFF the ventilation blower (constant speed) or alternately it can operate VLT Frequency Converter to change the speed of teh blower motor.

The concept is pretty simple but I have hard time finding the supplier of the CO sensor and set of the relays.

Any assistance in finding the supplier, preferrably in the region of Thailand, Malaysia, Singapore, India would be very much appreciated.

[frank]

I don't know of any suppliers in your region but here in the UK we use these (http://www.electrocontrols.co.uk/airqualitygassensors.htm) people.

Send them an e-mail, they may be able to help you.

[watana]

http://www.telasia.net/en/index.asp

you can try this site, and will suit your requirement