... automatic control, cool, fresh air, memory, error alarm, inside and outside temp display, voltage auto-protection, shift function.Application case: YUTONG bus ... to EN61010-II, Pollution degree: II Weight330g Input 1)Inside temp. sensor(25°c,Rb=5K,B=3274) 2) Defrost ... ACC(battery) 6) Backup lamp power7) Engine overheat signal(water temp. signal) 8) Engine oil pressure signal 9) Engine working signal ...