After releasing the pushbutton, the light signal runs quickly round the 10 LEDs in a circle, slows and then stops randomly at one of the LEDs. All LEDs are lit during operation except for the LED currently receiving the signal. The illuminated circuit board looks very decorative.
Kemo4024028012391
Price: £5.99 from Conrad Electronic
| Stockist | Price | |
|---|---|---|
| £5.99 | Visit Store |
Switches a relay when light or dark (shadow) is sensed. Whenever the light beam from a lamp projected onto doors, windows or similar is interrupted by a person, the device produces an alarm. Can also be used as a dimmer switch.
Can be used as a pre-amplifier for power amplifiers or as headphone amplifier.
When installed in a hemispherical reflector such as a plastic ball cut in half,this highly sensitive microphone can record sounds and speech at a distance of several hundred metres! Ideal for animal watchers, detectives, etc.