DC12V Voltage Detection Module Relay Switch Charging Discharging Detection 99.9V
5,94 €
Relay module 1. In standby mode, press the "minus" button for 3 seconds to turn off the display, and press it again for 3 seconds to turn on the display. Designed to reduce power consumption. After pressing the setup key with blinking F-1, then press + or - to adjust the function number, and then press the setup key again after adjusting to a certain function number, then it is OK.
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