Binghamton, NY Nov 10, 2009 #7 I am not common with meter operation, but I'd suspect that it ought to mail the switching voltages (13v for odd and 18v for even). And, if you must see the opposite sats it ought to mail the 22khz tone. I am not a https://telegra.ph/cap-dieu-khien-tin-hieu-am-thanh-04-21