Milesight EM300 Series, User Manual, Page: 22 / 26

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For decoder examples please find files on https://github.com/Milesight-IoT/SensorDecoders .
5.1 Basic Information
EM300 series sensors report basic information of sensor whenever joining the network.
Example:
5.2 Sensor Data
EM300 series sensors report sensor data according to reporting interval (10min by default).
Battery level is reported every 6 hours.
Channel Type Description
ff
01(Protocol Version) 01=>V1
09 (Hardware Version) 01 40 => V1.4
0a(Software Version)
01 14 => V1.14
0f(Device Type) 00: Class A, 01: Class B, 02: Class C
16(Device SN) 16 digits
ff 09 01 00 ff 0a 01 02 ff 0f 00
Channel Type Value Channel Type Value
ff
09
(Hardware
version)
0100 (V1.0) ff
0a
(Software
version)
0102(V1.2)
Channel Type Value
ff
0f
(Device Type)
00
(Class A)
Channel Type Description
01 75(Battery Level) UINT8, Unit: %
03 67 (Temperature) INT16, Unit: °C
04 68(Humidity) INT8, Unit: %
05
00(Water Leakage
Status)
00: Not water leaked
01: Water is leaked
06 00(Magnet Status)
00: Magnet switch close
01: Magnet switch open
05 c8(Counter)
4 bytes, unsigned
05 00(Digital)
00: low
01: high