The Sound To Light Unit Kit has four high-intensity LEDs that light up and react simultaneously on every sound.
This kit's six high intensity LEDs are microprocessor controlled to display messages and graphics that are pre-programmed into the wand. Specifications: Power supply: 2 x AAA batteries (not incl.). Dimensions: 6.4" x 1.0" x 0.9".
This Light Sensitive Switch is designed to automatically turn something on at night time and back off at dawn. A heavy duty relay provides NO and NC contacts rated at 5A at 24V.Â
This kit prevents switch-on clicks and DC components on the output of the amplifier connected. Specifications include: Switch-delay: ± 6 seconds. DC protection: +1V/-1V. Max. input voltage: 200Vpp + DC. Max. switching current: 10A.
This is an ultra high gain stereo audio amplifier that boosts audio 50 times and can also be listened to in stereo.
This has 2 x 15 LEDs (dot or bar indicator) and an adjustable input. Included in package: 1 front panel suitable for horizontal or vertical mounting. Specifications: Scale from: -23dB to +5dB (linear scale between -4 and +5dB). Precision: ± 0.5dB (1kHz). Input impedance:low input: 150mV - 5Vrms. High input: 1.5V - 50Vrms. Frequency range: 20Hz - 30kHz (-3dB). Power supply: 12 - 15V DC / 300mA. Dimensions: 5.9" x 2.2".
With this kit you can build your own transmitter that can be heard on any FM radio with a range of 40ft. Includes a miniature condenser microphone. 9V battery not included.
This kit generates 4 different sounds: police siren, fire brigade, emergency vehicle and laser gun. RV1 adjusts sound pitch. On/off switch and PCB speaker included.
This kit gives an alarm sound when water is detected. Incorporated alarm buzzer. Water sensor can be placed at a distance by cutting the board and using wires to connect the sensor.
This kit gives your car the feel of an expensive luxury car. Better starting and smoother running, particularly at very high and very low RPM. Lower fuel consumption, less pollution, lower servicing costs. Drive economically, drive electronically. Only for petrol/gasoline engines. Only for cars with negative ground.
This Car Alarm Simulator Kit gives you a realistic looking flashing LED sequence that simulates the appearance of an active car alarm system.
The Metal Detector is basically an oscillator that transmits in the AM radio band. When a radio is placed near the oscillator; it will emit an audible tone when metal is present.
There are all kinds of birds in this world; singing all kinds of songs. But neither you nor they probably have heard anything quite like this! Speaker included. 9 Volt battery, not included.
This kit produces a clicking sound similar to that made by a dying fish. Put the completed kit in a watertight container and suspend from the boat or dock into the water. Hungry fish come to investigate. 1.5V battery and connector not included.
