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 Electronic Watchdog SKU: VEL-K2655 A circuit that produces a natural barking dog sound with a sensitive “ear” to everything that comes near. Price: US$49.99 See details Metal Detector SKU: K-26 Find new money and old treasure with this easy and fun to build kit. Price: US$10.99 See details Metal Detector SKU: EKI-2004 Find the buried treasure in your backyard with this simple metal locator circuit. Price: US$7.99 See details Sound Activated Switch SKU: K-36 Clap and the light comes on, clap again and it goes off. Price: US$14.99 See details Voice Activated Switch SKU: RK-VS1 Voice activated switch (VOX) kit will provide a switched output when it 'hears' sound. Price: US$11.99 See details Super Sensitive Voice Activated Switch SKU: CK257 The circuit is based around an IC that ensures very high sensitivity Price: US$24.95 See details Super Sensitive Voice Activated Switch SKU: CK273 Robotic Voice imitator circuit. Price: US$28.95 See details Clap ON/OFF Switch SKU: VEL-MK139 Operate your lighting with a single handclap. Price: US$19.99 See details Whooper Alarm SKU: K-24 Can be used as a sounder or siren. Fun and easy to build. Speaker included. Price: US$10.99 See details Whooper Alarm SKU: EKI-2050 Produces a unique whooping sound when activated. Price: US$10.99 See details Fuzz Box SKU: EKI-2026 Add great distortion effects to your electric guitar with this kit. Price: US$11.99 See details Room Alarm Kit SKU: MX-610 Room Alarm Kit (non-soldering) •Create a simple alarm to deter trespassers •Keep your room off-limits to unwanted inva-ders (sisters or brothers) •Keep your personal space away from annoying visitors •Requires one (1) 9V batteries. Ages 10 & up. No soldering. Price: US$8.95 See details Wake-Up Alarm SKU: EKI-2039 Starts a soft buzz when light enters into the room. Price: US$8.99 See details Siren-4-Sound Mini Siren SKU: LCK015 Provides police, fire engine and ambulance sirens,plus machine gun sounds. Price: US$11.95 See details Siren-10W/ 4-Sound Mini Siren SKU: CK144 Creates police, fire engine and ambulance sirens plus machine gun sounds. Price: US$22.95

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