Accuracy class Level 2 Temperature sensor Pt1000 Temperature resolution 0.01aa UH-Ultraxonic-Heat-Meter(Household)Household UH Ultrasonic Heat Meter Series 1,304 stainless steel flow pipe 9,Lead seal screw2,Waterproof circuit board 10,Locking cover3,Header cover(433MHZ antennas or infrared optoelectronic interfaces) 11,Pins4,Ultrasonic transducer 12,Protective cover5,Base 13,Battery and holder6, ...