[Gogar]

230 is probably too high; make sure the monitors you're using have fresh batteries.

That'll be $250, you'll get a bill in the mail; please pay it immediately. Your insurance will cover some of it and send you a revised bill the day after you send in your check for the original $250 and you can fight them for a few months trying to get a refund and then finally give up in disgust and they'll just keep the money you overpaid.