Range extenders are powered nodes where the main function is to route data. Any node with a mains power
supply will act as a routing node in the network. Battery nodes do not route data – they spend most of the time
in a low power mode.
Each powered node can have up to 32 ‘neighbours’ which are nodes with a mains power supply and can Route
data back to the Gateway. They can also have up to 32 ‘children’ which are nodes that are battery powered and
cannot participate in any routing in the network.
The range that can be achieved with ZigBee will depend mainly on two factors: the power level of the ZigBee
radio module and the environment that the device is installed in. There are two types of ZigBee radio module
used across the EpiSensor product range, a power amplified version, and non-power amplified version.
The power output of nodes with a power-amplified module can be configured with an output power level of +20
dBm depending on the region they are deployed in. Non-power amplified nodes have a maximum output power
of +8 dBm.
Module Type
Tx Power
Rx Sensitivity LoS Range
Region(s)
Normal
+8 dBm
-101dBm
up to 300m (985ft)
Worldwide
Power-amplified
+20 dBm
-106dBm
up to 1600m (5250ft)
North America (FCC / IC)
All communications over the ZigBee wireless network is AES 128-bit encrypted. For more detailed information
on ZigBee security features, contact EpiSensor support.
Sensors
The following is a list of all sensors available on the ZHM. The reporting mode, reporting interval and logging
enabled columns refer to the factory default settings, these settings can be configured from the Gateway.
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