XKC-Y25-NPN liquid level switch

Description

Ships within 3 weeks

Liquid level switch. Stick to a glass surface and it will indicate if a liquid is present behind the glass. The cable is 30cm but it can be extended.

Brown: +5V
Yellow: Input signal
Blue: GND

Here you can see me monitoring the level of reverse osmosis water in my automatic top off (ATO) container for my reef tank: