Automatic Water Level Controller PCB

DC power jack - connector is a common barrel-type power jack for DC supplies
Size: 5mm x 2.1mm.

Low profile high quality, dual wipe contact, dual-in-line (DIP) socket (base) with tin-plated copper alloy contacts.
Pitch: 0.1" (2.54mm), Row Spacing: 0.3" (7.62mm), Number of Pins: 16.

Standard 9pin DB9 male PCB mount connector. Generally known as serial port male and used in various project & device boards etc..

2 Way Heavy Duty PCB Terminal block is good for mounting heavy wire to circuit boards, like for motor and battery connections.
Pitch: 0.4" (10.16mm), Rating: 300⁺V, 24A.

1N5399 High Quality 1.5A 1000V General Purpose Rectifier
- 1.5 Amp Current Capability and Low Forward Voltage Drop
- Low Reverse Leakage Current
- 1000 Volts (1kV) - RMS Reverse Voltage.

This is a breadboard compatible push to ON an push to OFF switch. Both the states are stable if you push it once it will lock in ON state and in another push it will release from ON state to stable OFF state..

12mm 4-Pin PCB Momentary Tactile Push Button Tact Switch - Height 12mm with cap
Cap Color: (Assorted all available colors Yellow, Green, Gray)..

330 Ohm 0.25W Carbon Film Resistor (CFR) with ±5% Tolerance.
330 Ohm Resistor Color Code: Orange, Orange, Brown, Golden.
Resistance: 330 Ohm, Power Rating: 0.25 Watt, Approximate Maximum Current: 27.52mA.

680 Ohm 0.25W Carbon Film Resistor (CFR) with ±5% Tolerance.
680 Ohm Resistor Color Code: Blue, Gray, Brown, Golden.
Resistance: 680 Ohm, Power Rating: 0.25 Watt, Approximate Maximum Current: 19.17mA.

1M Ohm 0.25W Carbon Film Resistor (CFR) with ±5% Tolerance.
1M Ohm Resistor Color Code: Brown, Black, Green, Golden.
Resistance: 1M Ohm, Power Rating: 0.25 Watt, Approximate Maximum Current: 0.5mA.

5mm Round Diffused, Red Light Emitting Diode.

5mm Round Diffused Yellow Light Emitting Diode.

Keltron 220uF 40Volts DC Radial Aluminium Electrolytic Capacitor.

0.01uF (10nF) 630V Non-Polar Polyester Film Capacitor.