Specification brand neomodel dn20power dc 5v 2abackup battery aa 1 2v x 3pcs built in ni mh battery with 2600mah capacity rechargeable battery valve open close time 12 secondscopper tube diameter dn20screen lcdwater flow reporting accuracy 0 1galflow rate reporting accuracy 0 1gal minoperating water pressure 0 1 3 mpaworking temperature 1 60 34 140 working humidity 1 95 rhwireless frequency 2 412 2 483ghz 5 18 5 85ghzwireless standard ieee 802 11 b g n ieee 802 11a 11n 11acbluetooth version bluetooth 5 0wireless distance 45mwaterproof level ip66features 1 support bluetooth network 2 support 2 4ghz 5ghz dual frequency signal wireless distance 45 meters 3 support local switch control 4 support bluetooth control when disconnected from the network 5 support device linkage 6 screen display real time flow rate flow data 7 support app remote control valve switch 8 support multi unit switching gal m l 9 support sharing can be viewed by multiple people 10 there is a built in backup battery in the backup state of the record flow to save the local and at the same time can be emergency switching 11 support flow statistics view total water consumption backup battery function 1 battery backup requires external power to activate internal power 2 when disconnecting the external power the wifi will automatically turn off can not be controlled remotely by app only through the local control of the valve open close 3 cannot locally control valve open c
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