Enabling the Motion Guard option provides tamper protection for the transmitter. When a sudden movement occurs, the transmitter detects it through its built-in accelerometer and triggers a tamper alarm.
Below is the list of transmitters that support this feature:
TX T&H AMB 600-051
TX T&H E-INK AMB 600-052
TX CO₂ T&H AMB 600-053
TX LIGHT PIR T&H 600-062
Below you will find a detailed explanation of how to activate and operate the Motion Guard feature in Proprietary LoRa mode and LoRaWAN mode.
In Proprietary LoRa mode (when used with an Enless receiver):
The Motion Guard feature becomes operational 24 hours after the transmitter is activated, provided that the Motion Guard option was enabled beforehand from the TX Config page.
If the transmitter was powered on for the first time while this option was disabled, enabling it later constitutes a configuration change. This change can be applied:
Automatically – see [LoRa proprietary] Update config functionality, or
According to the procedure described in this article: [Proprietary mode] Why is there a red reloading icon next to my transmitter on the IP server of the receiver
In all cases, a 24-hour delay is required before the Motion Guard feature becomes fully operational.
Detection of a tamper event (transmitter removal) or a sudden movement immediately triggers the transmission of a data frame notifying that the Motion Guard alarm has been activated.
In LoRaWAN mode:
Enabling the Motion Guard feature requires sending a Downlink, as shown in this article: [LoRaWAN] LoRaWAN Data frames decoding and downlink generator
Once the downlink has been applied, the feature becomes operational after 24 hours.
When a tamper event (transmitter removal) or a sudden movement is detected, the transmitter immediately sends an Uplink data frame notifying that the Motion Guard alarm has been triggered.