Binghamton, NY Nov 10, 2009 #7 I am not familiar with meter Procedure, but I might suspect that it has to send the switching voltages (13v for odd and 18v for even). And, if you'll want to see one other sats it should mail the 22khz tone. I will conceed https://dien-phuc-thinh.gitbook.io/dien-phuc-thinh/oc-siet-cap-chong-chay-no-gia-tot-tai-dien-phuc-thinh