Originally posted by "FearThe4Doors"
you also can get a digital multimeter and hook it to the o2 signal wire and get the voltage if you wanna be cheap.. err.. dodge
Thats how I do it.
I would much rather read 0.8912 Volts than try to decipher an LED line.
Also, the resolution from a multimeter is much greater than for any of the lighted meters. Even the Dawes is only within 0.03 V. (i.e., if the amber light is lit, you could have anywhere between 0.87 and 0.90 V).