TW-820T
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●Test switch
The transmitter is equipped with a test switch for checking the communication status.
When the transmitter transmit the signal by test switch not limit switch, receiver doesn’t output relay output. But
LED of receiver only turns on.
The test switch also can be used as a pairing switch. A long press on the test switch (3 seconds or more) resets
the pairing with the receiver and prevents communication with the registered receiver. When pairing is reset by
mistake, perform the pairing procedure again.
Transmitter
Receiver
Communication check OK
Green LED blinks 1 time
Receiver(RX) LED blinks 1 time
Communication check
Failed
Red LED blinks 10 times
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●Battery level notification function
When the battery level becomes low and the battery needs to be replaced, the blinking green LED after signal
transmission turns into blinking orange.
When the orange LED blinks, please replace it with a new battery immediately.
When you replace the battery with a new one, the LED on the transmitter will return to green from the second and
subsequent transmissions.
Test switch
Press the round recess.
When the battery needs to be replaced, the blinking green LED
after signal transmission turns into blinking orange.
Summary of Contents for TW-820T
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