•  
  •  

Pot plant water tester

This simple device checks if their is water in a pot plant. You stick the two probes(paperclips)into the pot plant and if the LED lights, it means there is water in the pot plant.

You need to adjust the 47k potentiometer to set the level at which the LED goes on.

Submitted by:
Betty Bone
boneb@mweb.co.za

If there are any problems please contact webmaster@electronic-circuits-diagrams.com

Please share & like

15KV High Voltage Generator Module Arc Ignition Inverter Step Up Boost Coil ML
$2.31 15KV High Voltage Generator Module Arc Ignition Inverter Step Up Boost Coil ML picture
SPY 785 HOLIDAY DETECTOR HIGH VOLTAGE PIPELINE VOLTAGE TESTER SPY 790
$974.95 SPY 785 HOLIDAY DETECTOR HIGH VOLTAGE PIPELINE VOLTAGE TESTER SPY 790 picture
Cllena Dc/Dc Voltage Converter Regulator Dc 360W 30A 36/48V
$29.95 Cllena Dc/Dc Voltage Converter Regulator Dc 360W 30A  36/48V  picture
Ultrasonic Plastic Welding Pressure Welding Machine Portable Plastic Spot Welder
$577.18 Ultrasonic Plastic Welding Pressure Welding Machine Portable Plastic Spot Welder picture
Portable Ultrasonic Plastic Welding Pressure Welding Machine Plastic Spot Welder
$577.38 Portable Ultrasonic Plastic Welding Pressure Welding Machine Plastic Spot Welder picture
  • Why Marc

    Using a PNP would have make more sense…