This document contains product specifications for two models, the F23-A++-TX and F23-A++-RX, from Henan Yuding Electronics Corp. The F23-A++-TX is a small, lightweight, weather-resistant radio transmitter with 8 buttons that transmits on 310.0325-331.165 MHz with less than 10dBm power and detects faults like low battery. The F23-A++-RX is a larger, heavier weather-resistant radio receiver that can be powered by various voltages and has 8 relay operation points to control devices. Both products have over 4 billion unique security codes.