THE BASIC PRINCIPLES OF TESTIFIRE FIRE ALARM TESTING EQUIPMENT

If right after two minutes the test hasn't completed, Testifire XTR2 will time-out as well as check might be recorded as unsuccessful. The standing LED will flash triple red to signify the test continues to be unsuccessful and you should take out Testifire XTR2 by gently decreasing it."I had a big engineering/logistics difficulty that William about