The trigger/amplifier circuitry inside the sensor is used to monitor the amplitude of the oscillator, and at certain levels (predetermined levels) the circuitry switches on (or off) the sensor/switch ...

Water level sensor, indicator circuit diagram. Advertisement. ... Switches S1 and S2 can be used to switch on and switch off, respectively, the pump manually. The author used a piece of non-metallic ...

To work in junction boxes without neutral wiring, C by GE’s new hubless smart switches and dimmers have been designed to “steal” energy from the wire that goes through the switch.

Wiring connections: Smart switches and dimmers tend to be larger than their dumb counterparts, so you should consider how the new switch will fit in your existing electrical box.