I use this. It is the size of a wrist watch. Put some velcro on the
back and velcro'ed it to the dash. It tells you the PPM starting at 1.
I had an exhaust leak and watched is slowly rise. I fixed the problem
before the little dot would have discolored. I like it. A bit more
expensive, but with a continuous readout, I feel it is really showing
me a true reading, not just a dead man reading.
Pocket CO 300 - Carbon Monoxide DetectorThe "New" Pocket CO Model
300 offers 3 ways to alarm at 3 different PPM levels: Loud buzzer,
Bright LED and Vibrator alert. Made in USA. more...
List: $149.00
Click to See Our PriceOur Price: $139.00
Savings: $10.00
