Description
Low Frequency Infrared Receiver compatible with older Guardian Systems with Low Frequeny IR Transmitters (STC2, STC3)
This receiver is only generally used on older Guardian systems which were installed before the high Frequency technology was introduced to overcome issues caused by Low energy lighting.
All later generation transmitters (TIR4, STC5, STC8) transmit BOTH high & Low frequency signals and are therefore compatible with old and new systems.
Older systems may only have TIR1, TIR2, STC2, STC3 Transmitters which only transmit LOW frequency IR and would not be compatible with the curent AIRX7 HF Receivers.