Keep invaders out of your bedroom with this DIY burglar alarm. This clever kit has been designed for the Science Museum by students at Middlesex University.

Includes:: a light sensor electronic switch & easy-to-assemble circuitry. Requires 2 AA batteries. Age 10.

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Spy Cobra
- Extremely useful & highly covert device to log computer usage Compatible with Windows 2000 XP Vista & 7 Completely
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Fly via the LCD display on the controller or in the more traditional manner Video transmitted to the controller via 5.8 G Hz wireless connection 1300ft 400m effective transmission range Auto-pilot function EPO durable Polyfoam material Responsive 4 channel control system 5MP mounted camera to capture in-flight footage Trim function for responsive controls Accepts Micro SDHC Class 6 2GB card included ...

GSM SIM card inside enables dial in from anywhere in the world Listen to conversations from a distance Looks like a standard 3-way adaptor plug Using the GSM network we can convert any normal 3-way plug into a sophisticated listening device. The plug can be used in your own home or office to gather audio intelligence from across the globe. Cleverly constructed inside is a GSM SIM card combined with a powerful Knowles microphone which will silently open the connection when you dial in from anywhere in the world thus allowing you to listen to the surrounding sounds & conversations. The plug is NOT a working model & can be used to monitor a particular area for periods of audio surveillance. Note This unit can be used legally within the EU. ...

- Tiny size for discreet observation & portability
- Quality colour images with sound
- Connects easily to a TV VCR or security


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A 22-turn cermet preset with slipping clutch 25 mechanical turns & an audible click at each end of travel to define the ends. This professional quality trimmer is designed for applications where reliability & small size are major considerations. Infinite electrical resolution. Power rating 0.5W at 70 C. Tolerance plusmn 10. Max working voltage 300V. Temperature coefficient plusmn 100ppm C max. Values available 1k 5k 10k 50k 100k 1M. The dustproof & immersion-proof case measures 9.6 x 4.8 x 10mm high. Drive head stands a further 1.5mm high. Lead length 6.2mm. Pins are in-line on 2.54mm 0.1in. centres. ...

A 22-turn cermet preset with slipping clutch 25 mechanical turns & an audible click at each end of travel to define the ends. This professional quality trimmer is designed for applications where reliability & small size are major considerations. Infinite electrical resolution. Power rating 0.5W at 70 C. Tolerance plusmn 10. Max working voltage 300V. Temperature coefficient plusmn 100ppm C max. Values available 1k 5k 10k 50k 100k 1M. The dustproof & immersion-proof case measures 9.6 x 4.8 x 10mm high. Drive head stands a further 1.5mm high. Lead length 6.2mm. Pins are in-line on 2.54mm 0.1in. centres. ...

A 22-turn cermet preset with slipping clutch 25 mechanical turns & an audible click at each end of travel to define the ends. This professional quality trimmer is designed for applications where reliability & small size are major considerations. Infinite electrical resolution. Power rating 0.5W at 70 C. Tolerance plusmn 10. Max working voltage 300V. Temperature coefficient plusmn 100ppm C max. Values available 1k 5k 10k 50k 100k 1M. The dustproof & immersion-proof case measures 9.6 x 4.8 x 10mm high. Drive head stands a further 1.5mm high. Lead length 6.2mm. Pins are in-line on 2.54mm 0.1in. centres. ...

A 22-turn cermet preset with slipping clutch 25 mechanical turns & an audible click at each end of travel to define the ends. This professional quality trimmer is designed for applications where reliability & small size are major considerations. Infinite electrical resolution. Power rating 0.5W at 70 C. Tolerance plusmn 10. Max working voltage 300V. Temperature coefficient plusmn 100ppm C max. Values available 1k 5k 10k 50k 100k 1M. The dustproof & immersion-proof case measures 9.6 x 4.8 x 10mm high. Drive head stands a further 1.5mm high. Lead length 6.2mm. Pins are in-line on 2.54mm 0.1in. centres. ...

A 22-turn cermet preset with slipping clutch 25 mechanical turns & an audible click at each end of travel to define the ends. This professional quality trimmer is designed for applications where reliability & small size are major considerations. Infinite electrical resolution. Power rating 0.5W at 70 C. Tolerance plusmn 10. Max working voltage 300V. Temperature coefficient plusmn 100ppm C max. Values available 1k 5k 10k 50k 100k 1M. The dustproof & immersion-proof case measures 9.6 x 4.8 x 10mm high. Drive head stands a further 1.5mm high. Lead length 6.2mm. Pins are in-line on 2.54mm 0.1in. centres. ...