Level Indicator Soldering Kit

This soldering kit makes it possible to check and display the fill level of water containers such as rain barrels, aquariums, fountains, water tanks and much more. The coloured LEDs on the board signal the different fill levels.
If necessary, the board also controls an external relay, which switches on a pump, for example. A standard 9 V battery (not included) serves as the power supply.

CONTENTS:
- 1 circuit board, 50 x 40 mm
- 1 diode (D1) 1N4148
- 4 resistor 1KOhm
- 4 resistor 100KOhm
- 1 resistor 10KOhm
- 5 transistors BC547C
- 1 LED 5 mm green
- 1 LED 5 mm yellow
- 1 LED 5 mm red
- 1 switch (SW1) SS12D01        
- 1 battery clip ST1, 9V

TECHNICAL DATA:
- Size of the circuit board: 50 x 40 mm
- Operating voltage: 9V (9V block)
- Current consumption: 20-60 mA
- Difficulty level: easy
- Assembly time: 20 min.
- Age recommendation: 10+ (under adult supervision!)

What else is needed for assembly:
Soldering iron, solder, tweezers, side cutters 

MANUAL