Quote:
Originally Posted by erick
SQM-L contains a voltage regulator to power the sensor, microcontroller and other components." which suggests some level of battery depletion would be allowed for?[/FONT]
|
Hi Erick,
Andrew and I both have the early version standard SQM. I guess I have had the unit coming up towards 5 years. I don't know what circuitry these older devices have to allow for battery depletion. Possibly none. However, there are a lot of these older units floating around so I would guess most of these > 22.0 readings might eminate from these units.
What I have done is repeated the excersise enough times to know that depleted batteries cause a fasle high reading with at least mine and Andrew's units.
It's also worth mentioning that all SQM units have a tolerance allowance of 10% (+ or - .1 reading).
Cheers,
John B