RH-DII Combined Heat Meter   Accuracy Class       : 3 Standard                   : CJ128-2000 Heat meters Display                      :LCD with 8 digit numeric display, 2 push buttons Offer range               :DN15-DN50 Temperature range    :4℃～95℃ Power supply            :lithium battery Battery life                   : > 5 years under normal condition Protection Class          : IP54 For individual household heat costs charging in central heating and central air-conditioning
		RH-DIV Combined Nonmagnetic Heat Meter   Accuracy Class  : 3 Standard             : CJ128-2000 Heat meters Offer range         :  DN15-DN25 Wiegand flow sensor, more precise measurement. Flexible cooling-heating switching solutions. Pulse output function, supporting M-Bus and RS-485 network communications, supporting infrared communication, equipped with special infrared hand-held meter reading device. Calculator is equipped with multi-protections to achieve outstanding anti-interference performance. Support history data storage for last 12 months. RH-DIV combined heat meter is recently developed series products. Compared with RH－DⅡ heat meter, its performance and functions are entirely upgraded in flow and temperature measuring accuracy, safer cool/heat switching mode, higher operation pressure, newly equipped infrared communication mode, more convenience in applying, and added history data storage and system monitoring functions.
		RH-DII Prepaid Card Heat Meter   Accuracy Class  : 3 Standard             : CJ128-2000 Heat meters Offer range         : DN15-DN25 Adopted radio frequency card, convenience in use, reliable operation, elimination of IC cards with contacts contamination problem resulted from exposure. Electronic flow sensor enabling more precise measurement. Large torque and highly reliable electric ball valve especially fit for heating pipeline severe environment. External battery compartment design for easy battery change. RH-DII prepaid card heat meter is developed by this company for domestic market, it features superior performance, high precision, fees prepaid, and automatic flow open/shutdown