Description: The electronic bell used PIC16C55 Singlechip control, suitable for greenhouse thermostat timing timing or water pressure control. PIC16C55 Singlechip operating voltage for the 2.5 ~ 6.25V, low power consumption, driver ability. The electronic bell all the way to control the load within 24 hours of 3 times on/off a double threshold timing trigger output can then maintain the traditional power-type relays, impulse relays can also be received. The machine scans the four LED digital tube display, as well as blanking (power) work, to use a very flexible and convenient.
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