... Temperature difference 3K-80K UH-Ultraxonic-Energy-Meter(Household)Household UH Ultrasonic Heat Meter Series 1,304 stainless steel ... the material testing strictly,including 304,316L,special plastic and rubberarticles,ensure that the product long-term, ... Indicators of UH Ultrasonic Energy MeterUH Ultrasonic Energy Meter,isa new type of energy meter which based on ultrasonictransit-time,constituted by ...