My Extech EX330 has a very soft volume on the NCV detector beeper.
I contacted Extech support and they replied that the beeper should be quite
loud and they suggest it's a defect.
Do you have any other ideas? The other functions I tested seem to be fine.
reply from Extech (Greg McDonald):
The EX330 NCV Alarm does have a very loud audible alert. If your alert is not loud, I feel that the unit might have a defective speaker. I would suggest to have the unit replaced through the reseller where it is brand new. They should be able to exchange this unit with any problems.