Binghamton, NY Nov 10, 2009 #seven I am not acquainted with meter Procedure, but I might suspect that it should send out the switching voltages (13v for odd and 18v for even). And, if you must see the opposite sats it needs to mail the 22khz tone. A meter is https://sites.google.com/view/dienphucthinh/thiet-bi-chong-set-lan-truyen-val-phoenix-contact