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QualityKits Part #: K2655
K2655: Electronic Watchdog kit
Price:  $39.95
Special: 10-49 items at $35.96 each
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A circuit that produces a natural sounding bark with a sensitive 'ear' to everything that comes near it. It is a faithful watchdog, which never sleeps and never has to be taken for a walk.
Technical specifications
- Very realistic simulation through the use of a random generator
- Choice of two different dogs
- Reacts to environment noise, with adjustable sensitivity
- Trigger input to connect other detectors (photo-electric cell, motion detector, smoke detector, etc...)
- Loudspeaker output (2W at 4 ohm)
- Connectable to more powerful amplifier
- Complete with rectifier and voltage regulator
- Power supply : 2x8V/0,5A transformer or 9 to 12VDC
- Supply current: standby : 75mA (when barking : max. 400mA )
- Dimensions : 142 x 75 x 30mm
Suitable housing: WCAH2851
Hints
- If bark frequency is to low (very slow bark) reduce the value of C3 (ex. 1500pF)
- If microphone is to sensitive, lower the value of R20 and increase the value of R2
- If there is a metallic background noise, put a 33pF capacitor from pin 7 of IC3 to ground |
Price: $39.95
Special: 10-49 items at $35.96 each
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