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ABRA Electronics  :: Educational Kits :: Alarms/Sirens/Sounds


Alarms/Sirens/Sounds
  

Result pages: Previous page  1 2 3 4  Next page

Wake-Up Alarm
See details 		Wake-Up Alarm
SKU: EKI-2039

Starts a soft buzz when light enters into the room.
Price: US$8.99



MX610 Room Alarm Kit
See details 		MX610 Room Alarm Kit
SKU: MX-610

MX610 Room Alarm Kit (non-soldering). Create a simple alarm to deter trespassers.
Price: US$9.75



Fuzz Box
See details 		Fuzz Box
SKU: EKI-2026

Add great distortion effects to your electric
guitar with this kit.
Price: US$11.99



Whooper Alarm
See details 		Whooper Alarm
SKU: EKI-2050

Produces a unique whooping sound when activated.
Price: US$10.99



Whooper Alarm
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



Velleman MK139 Clap ON/OFF Switch
See details 		Velleman MK139 Clap ON/OFF Switch
SKU: MK139

The Velleman MK139 Clap ON/OFF Switch operates your lighting with a single handclap.
Price: US$19.95



Super Sensitive Voice Activated Switch
See details 		Super Sensitive Voice Activated Switch
SKU: CK273

Robotic Voice imitator circuit.
Price: US$28.95



Super Sensitive Voice Activated Switch
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



Ramsey VS1 Voice Activated Switch Kit
See details 		Ramsey VS1 Voice Activated Switch Kit
SKU: VS1

The Ramsey VS1 Voice Activated Switch Kit (VOX) will provide a switched output when it hears sound.
Price: US$9.95



Sound Activated Switch
See details 		Sound Activated Switch
SKU: K-36

Clap and the light comes on, clap again and it goes off.
Price: US$14.99



Metal Detector
See details 		Metal Detector
SKU: EKI-2004

Find the buried treasure in your backyard with this simple metal locator circuit.
Price: US$7.99



Metal Detector
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



Ramsey ECS1 Electronic Cricket Sensor Kit
See details 		Ramsey ECS1 Electronic Cricket Sensor Kit
SKU: ECS1

The Ramsey ECS1 Electronic Cricket Sensor Kit senses temperature and changes its chirp accordingly.
Price: US$24.95



Ramsey EDF1 Dripping Faucet Kit
See details 		Ramsey EDF1 Dripping Faucet Kit
SKU: EDF1

The Ramsey EDF1 Dripping Faucet Kit teaches how a simple transistor oscillator together with the eternal 555 timer IC can make a dripping faucet sound.
Price: US$12.95



Velleman K2639 Liquid Level Controller Kit
See details 		Velleman K2639 Liquid Level Controller Kit
SKU: K2639

The Velleman K2639 Liquid Level Controller Kit is not just an alarm like its little Mini-Kit brother the MK108, it gives you an LED display of LOW, MIDDLE, or HIGH levels.
Price: US$27.95



 
Result pages: Previous page  1 2 3 4  Next page

 

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