Kitronik Alarm Project Kit

Item number 57570 Brand Kitronik Model 2101 Share Write a review
Kitronik Alarm Project Kit

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This kit can be used to make a shed or room alarm when mounted on the top of a door, drawers or any other object with a movable opening. It can also be used by replacing the micro switch with a magnetic door contact.

A micro switch acts as a trigger mechanism and is armed / disarmed by a seperate sliding switch. The door's movement is detected by a micro switch mounted onto a door or object with a lid. A timer provides an entry delay during which the system can be disarmed by the slide switch, whilst a separate timer silences the alarm after two minutes. Both of these timers are implemented via a 556 dual timer IC.

The alarm can be further enhanced by using a simple key switch for arming / disarming or by replacing the micro switch with a magnetic door contact switch to activate it. The board, battery pack & buzzer can be placed into a box designed by the student.

  • Can be enhanced with a key switch to arm/disarm.
  • Can be enhanced by replacing the micro switch with a magnetic door contact switch.
  • Entry delay for disarming.
  • 1 x PP3 Battery Clip Lead (Heavy Duty).
  • 1 x 4xAA Battery Cage with Clip.
  • 1 x Miniature DPDT Slide Switch.
  • 1 x NE556 Dual Timer IC.
  • 1 x IC Socket 14 Pin.
  • 1 x Piezo Buzzer (with Drive).
  • 4 x Capacitor, Ceramic, 50V, 10nF.
  • 2 x 100uF Cap Low Leakage.
  • 3 x 10KΩ Resistor.
  • 1 x 220KΩ Resistor.
  • 2 x 1.2MΩ Resistor.
  • 1 x Micro Switch with Medium Lever.
  • 1 x Red 5mm Diffused LED - 275mCd.
  • 1 x 330Ω Resistor.
  • 1 x Alarm Project Kit PCB.
Possible applications include:
  • Adding an alarm to a cookie/biscuit tin.
  • Adding an entry alarm to a door.
  • PCB Length: 51mm.
  • PCB Width: 41.5mm.
  • 4 x AA Batteries.
Resources:Note: This is an educational kit and should not be used to secure anything of value. This product is designed and manufactured in the UK by Kitronik.


Brand information
Brand Kitronik
€ 7,45€ 6,15 Excl. VAT (NL)
Out of stock Delivered in 5 to 30 days
Shipped from € 3,50 (NL) 30 days cooling-off

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