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ABRA Electronics :: Educational Kits :: Security Kits

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Security Kits

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Velleman MK108 Water Sensor Alarm Kit
SKU: MK108

The Velleman MK108 Water Sensor Alarm Kit gives alarm sound when water is detected.

Price: US$7.95

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Velleman MK120 IR Light Barrier Alarm Kit
SKU: MK120

The Velleman MK120 IR Light Barrier Alarm Kit creates an invisible beam of light that will sound an alert whenever it is broken.

Price: US$10.95

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Ramsey QLRD1 Automatic Telephone "Ring Down"-Assembled
SKU: QLRD1

The Ramsey QLRD1 Automatic Telephone "Ring Down"-Assembled- is for instant off-hook ring down access between two telsets.

Price: US$89.95

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Ramsey QLRD4 Call-All-Stations "Ring Down" Extender Assembled
SKU: QLRD4

The Ramsey QLRD4 Call-All-Stations "Ring Down" Extender- Assembled- extends your ring down to multiple stations.

Price: US$69.95

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Motion Detector Kit
SKU: SS-50K

Learn the basics of motion detector technology while building this motion detector kit that uses an infrared sensor.

Price: US$28.99

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Ramsey SS70C Speech Scrambler and Descrambler Kit
SKU: SS70C

The Ramsey SS70C Speech Scrambler and Descrambler Kit With Case full duplex operation allows scrambling and descrambling at the same time.

Price: US$39.95

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Ramsey SS70WT Speech Scrambler and Descrambler Assembled
SKU: SS70WT

The SS70WT is the assembled version of the Ramsey SS70C Speech Scrambler and Descrambler Kit.

Price: US$69.95

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Ramsey TG2C Tone Grabber Touch-Tone Reader Kit
SKU: TG2C

The Ramsey TG2C Tone Grabber Touch-Tone Reader Kit With Case will decode and store any DTMF tone it hears, like dialed phone numbers, repeater codes, control codes.

Price: US$69.95

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Ramsey TG2WT Tone Grabber Touch-Tone Reader Assembled
SKU: TG2WT

The TG2WT is the assembled and tested version of the Ramsey TG2C Tone Grabber Touch-Tone Reader Kit with case.

Price: US$119.95

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Ramsey TT1C Phone Recorder Controller Kit
SKU: TT1C

The Ramsey TT1C Telephone Tattle Tale Kit with case lets you keep a record of all your telephone calls automatically.

Price: US$29.95

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Ramsey TT1WT Phone Recorder Controller Assembled
SKU: TT1WT

The TT1WT is the assembled version of the Ramsey TT1C Telephone Tattle Tale Kit.

Price: US$59.95

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Ramsey TV6C VHF TV Transmitter Kit
SKU: TV6C

The Ramsey TV6C VHF TV Transmitter Kit With Case allows you to send any audio and video source (like a VCR or TV camera) to any TV set for up to 300 feet.

Price: US$39.95

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Ramsey WTS1C Wireless Trip Sensor Kit
SKU: WTS1C

The Ramsey WTS1C Wireless Trip Sensor Kit combines a very low power sensor along with a powerful UHF transmitter that can send from over 300 feet away.

Price: US$64.95

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Ramsey WTS1WT Wireless Trip Sensor Assembled
SKU: WTS1WT

The WTS1WT is the assembled version of the Ramsey WTS1C Wireless Trip Sensor Kit.

Price: US$104.95

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