1.DN15-DN40
2.Communication: M-BUS, RS-485, Pulse output, LoRa, LoRaWAN, NB-IoT
3.Internal Lithium battery can be replaced
4.Waterproof standard: IP 68
5.Frequency: LoRa/ LoRaWAN 868MHz, 902MHz, 915MHz, 920MHz, Customized Frequency Requirement
6.Unit: L/ m3/ Gal (Optional)
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