ABRA has a vast inventory of alarm kits, siren kits, sound kits, sound activated kits, metal detector kits, etc. for students, teachers and hobbyists. All our kits are from well known manufacturers like Elenco, Ramsey, Velleman, CanaKit and EKI.

Alarms/Sirens/Sounds

Sort by: SKU Product Price Default Result pages: 1 2 3   See details 8-Melody Generator SKU: CK208 Produces 8 popular tunes. Price: US$17.95 See details Burglar Alarm SKU: EKI-2006 This kit uses a simple SCRs trigger circuit to sound an ear piercing alarm whenever a trigger switch is interrupted Price: US$8.99 See details Car Alarm SKU: VEL-K3504 The alarm detects sudden voltage drops of the battery when the interior,trunk, or hood lights are switched on. Price: US$24.99 See details Car Alarm Simulator SKU: VEL-MK126 LED with “realistic-appearing” flash sequence simulates active car alarm system. Price: US$8.95 See details Car Alarm System SKU: CK135 A hidden key switch (not included) located inside the car initially arms this alarm. Price: US$39.95 See details Car Light Warning System SKU: VEL-K3505 This head light indicator may be set for one or two functions. Price: US$18.99 See details Clap ON/OFF Switch SKU: VEL-MK139 Operate your lighting with a single handclap. Price: US$19.99 See details Code Lock SKU: VEL-K6400 This code lock may be used to switch an alarm (e.g. car alarm VEL-K3504) on and off, or to open a door lock. Price: US$39.99 See details Combo Lock/Alarm Control SKU: EKI-2052 Connect the output to any alarm, such as the 2050 Whooper Alarm Kit (not incl.), & monitor your door, drawer, or other private location. Price: US$25.99 See details CW Touch Paddle/Touch Switch SKU: TS-1 This versatile kit features TWO independent touch circuits. Price: US$13.99 See details Digital Bird SKU: K-19 You probably have never heard a bird sing like this before. Fun and easy to build. Speaker included. Price: US$10.99 See details Ding Dong Sound Effect SKU: CK313 This unit uses an advanced IC which has been pre-programmed to create a realistic "Ding Dong" sound. Price: US$12.95 See details Electret Condensor Microphone SKU: MC-1 This little microphone element is used for any FM wireless mike kits. Price: US$3.99 See details Electronic Bell Action Kit SKU: MX-510B •Build your own electricpowered Bell Kit. It’s easy, it’s fun, it’s safe! •Discover how an electric bell is constructed and how it’s made to ring. •Easy-to-read, illustrated operating manual included. •Safe, solderless, exciting, educational and fun. Requires two (2) “AA” batt... Price: US$10.49 See details Electronic Cricket SKU: VEL-MK104 Can be used for fun or to simulate a hot summer night. Automatically comes on when it gets dark Price: US$13.95

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