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WK2038E SRE Receive distance about 80-200m Receive frequency 433.92 MHz Dropback sound indication Volume/On/Off control Use 1x9V battery lifespan over 150 hours More 6000 code settings
STE Range at 80-200 metres (range subject to atmospherics and conditions) Transmit frequency 433.92MHz Dropback sound indication Volume/Tone/Sensibility control Use 2x1.5V batteries,working time over 300 hours 20 seconds latching high visibility LED Weatherproof On/Volume/Tone/Sensitivity/Off push button
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