RED LED Indicator Lights on the LRA-DCRXS Plug-In Receiver
The red LED on the LRA-DCRXS receiver indicates low battery during normal operation and shows zone status during programming mode.
Published November 15, 2022
On the LRA-DCRXS plug-in receiver with the strobe light there is a red LED located just under the strobe-light lens.
During regular operation of the LRA-DCRXS, you may see the red LED illuminate under the strobe lens. This indicates the battery in a transmitter programmed to the receiver is low.
When the RED LED Stays on During Normal Operation
When not programming a sensor/transmitter to the LRA-DCRXS, a red LED that stays on indicates a transmitter/sensor programmed to the receiver has a low battery and it needs to be replaced. For example, the battery in the push button is a 3V lithium battery, model number CR2032.

The RED LED in Programming Mode
When programming the LRA-DCRXS receiver to an LRA-compatible transmitter/sensor, the RED LED has two indications: 1) the zone you are programming and 2) if the two available zones are occupied. When the LRA-DCRXS is in programming mode, the RED LED will display.
A Blinking RED LED
The LRA-DCRXS has two available zones, meaning one transmitter/sensor may be programmed to each zone. A fast-blinking LED indicates programming for zone 1, and a slow-blinking LED indicates zone 2.
For example, when the receiver is in programming mode and zone 1 is empty, the red LED will blink quickly. The red LED will blink slowly if zone 1 is occupied and zone 2 is empty. That means zone one already has a transmitter/sensor programmed to it, and zone two is empty.
A Solid RED LED (when in programming mode)
After entering programming mode, if the red LED is solid this means both zones 1 and 2 are currently occupied with an LRA-compatible transmitter/sensor. The memory must be cleared or erased to program a transmitter/sensor to the receiver.
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