EP001 is a beginner kit with little or no previous knowledge of electronics. Basic soldering techniques required for circuit board assembly. It comes with two sets of flashing circuit and sound circuit, and soldering tools including a soldering iron, cutting pliers and a soldering base. This will make learning electronics easy and fun! Just follow our manual and build exciting projects. You can even play electronic games with your friends. Enjoy hours of educational fun while learning about electronics.


Key Features:

• A simple two LED flasher
• An ambulance siren
• A soldering iron
• Cutting pliers
• A soldering base

Intruder alarm circuit is using LDR to detect light level and having timer and alarm. It requires power supply 9 volt and speaker 2 inches 0.25 watt. Assembly is required!


Key Features:

• Using LDR to detect light level and having timer and alarm.
• It comes with a speaker 2 inches 0.25 watt
• Power supply 9V.
• Box for product Part #FB03

Perfect for your shop door, you will always know when someone enters. Uses an adjustable light sensor, which detects changes in light, to trigger the chime. Comes with a speaker. This circuit requires 4.5 volts DC. Assembly is required!


Key Features:

• A "ding-dong" musical alarm to provide warning of intruder.
• It can be installed at gate or shop door to detect the visitor
• This circuit requires 4.5 volt current (battery 1.5 volt 3 units)
• Box for product Part #FB04

Connect this to your car battery and install the kill switch in a hidden place. When someone starts your car, the circuit will detect a drop in voltage from the car's battery, used by the starter, and the circuit will wait approximately ten seconds, then it will trigger your 12v siren! Assembly is required!


Key Features:

• The car starting alarm circuit which can be connected to a horn or siren delays the in-out time at 10 seconds and sets time to re-function in a minute.
• It can be applied with a motocycle or a motocar with 12 volt
• Power supply 12V.
• Box for product Part #FB03

This circuit uses an infrared beam that transmits across a room to the receiver. When the beam is broken, a relay is triggered and you can attach a siren. There is also a switch for a delay mode of 30 seconds after the beam is broken for the siren to go off. Or if the switch is in the other position, there will be no delay. When you first turn on the switch, you have one minute before it will detect a broken beam. This allows you to pass through the area before it is activated. Assembly is required!

Key Features:

• This is an electronic circuit that rely on the use of on invisible infrared ray for detection.
• The circuit also provides an entry -exit delay.
• It utilizes unseenable infrared to be a checker.
• Power supply 9V.
• Box for product Part #FB10 and #FB17

Additional Information:

• Click here to view the circuit diagram

A circuit that detects a break in magnetism, and triggers a sound. Can be hooked up to a door or window. Comes with a small but powerful speaker. Runs on 9vDC. Assembly is required!

Key Features:

• This of theft proof circuit is a very small set with complete efficiency including time detention with warning sound and able to set the warning time.
• Small but powerful amplifiers 2W.
• Power supply 9V.
• Box for product Part #FB04

Additional Information:

• Click here to view the circuit diagram

Loop a wire around your side of the conductive door knob, and when someone touches the other side, the alarm is triggered. Runs on 9vDC. Assembly is required!

Key Features:

• The door knob touch alarm circuit is a small one and used by looping the knob.
• Power supply 9V.
• Box for product Part #FB03

Additional Information:

• Click here to view the circuit diagram

This circuit works under the same principals as a bat's echo-sound. It uses ultrasonic waves to detect movement in an area, then triggers a relay. Runs on 12vDC. You can have a load through the relay of 10Amps at 120vAC, 5Amps at 220vAC Assembly is required!


Key Features:

• The circuit works according to the same principle as the ultrasonic echo ranging of bats.
• It can be used as a alarm signal for person staying in the certain area.
• Power supply 12V.
• Box for product Part #FB03

This kit will detect infrared radiation from body heat with PIR sensor. Assembly is required!


Key Features:

• This kit will detect infrared radiation from human or animal body with PIR (Pyroelectric Infrared Sensor).
• And has fresnel lens (circular and flat) for increased efficiency of detection.
• Ideal for alarm system, automatic light system, etc.
• Detection range : 5 meters for circular len and 8 meters for flat.
• Power supply : 5-15 VDC./ 35mA. Max.
• Recommended housing : FB04
• PCB dimensions : 4.9" X 1.8"

This circuit detects infrared radiation from warm body with PIR (Pyroelectric Infrared Sensor). Passive Infra Red Sensor Switch Kit (Delay 0 - 5 minutes) Assembly is required!


Key Features:

• This circuit is detected infrared radiation from human or animal body with PIR (Pyroelectric Infrared Sensor).
• And have the fresnel lens (circular and flat) for increase efficiancy of detect.
• Ideal for alarm system, automatic light system, etc.
• Detection range : 5 meters for circular len and 8 meters for flat len.
• It have the delay-off timer from 5 seconds to 5 minutes.
• Max. load : 500 Watts.
• Power supply : 12VDC. / 65 mA. Max.