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Switches a relay on or off depending on a preset temperature. Ideal as thermostat, ice alarm, fire detector, etc. it is possible to operate lamps, sirens or devices with loads up to 3A! Requires SolderingOperating Voltage 6-14V DCRelay Current - 3A @ 25VTemperature range: -30 to +150CDimension..

An electronic project kit to build a circuit that when installed into a hemispherical reflector (e.g. a plastic ball divided in halves) this highly sensitive microphone is able to record noises and speech from a distance of several hundred meters. Ideal for observing animals, for detective..

An electronic project kit to build a circuit that makes 2 differently coloured light emitting diodes flash alternately. Adjustable flashing speed/frequency. Usage: flashing adornments, name-plates, for miniature constructions, model making etc . Flashing LEDs can be used in model making and mo..

An electronic project kit to build a circuit that after pressing a key this digital die indicates depending on chance, a number between 1 - 6. Indication takes place via LED's. An ideal electronic alternative to a traditional dice for games etc.Requires SolderingOperating Voltage 9-15VDimens..

Adjustable time switch for switching operations from approx. 1 sec. to approx. 40 minutes. The device switches on after pressing the key and switches off again when the adjusted time has expired. The lapse of time may be interrupted any time with the reset key.Requires SolderingRelay operate..

Electronic Project Kit to make an FM radio. The integrated audio amplifiers can drive an 8 ohm loudspeaker > 1 W. Pre-assembled SMD IC's and pre-wound coils simplify assembly. The kit can be powered by a 9 V battery.Requires SolderingA 8 Ohm speaker is required, see our shop for great deals ..

An electronic project kit to build a circuit that can be used as a universal amplifier for audio. The amplifier is rated at 1W with a maximum of 2W peak. Its small size means it can be integrated into many projects even when space is tight.Requires SolderingOperating Voltage 6-9V1W Output (2..

Whenever two bare wires have contact with water, the light emitting diode will light up. The device is suitable to release alarm in case of overflowing rain barrels and gutters. Operating voltage: 9 V/DC. As an add-on the kit B197 - Relay card 12 V/DC, which can be connected with this kit to..

With the aid of this project kit it is possible to carry out functional tests of infrared remote controls used in TV-sets and video devices, etc. Whenever there is radiation of infrared beams on the Special-Sensor, the LED will light up and indicate that the infrared remote control is oper..

An LED lights up if a body approaches the ultrasonic sensors at a distance of 10 - 80 cm (depending on the size of the body). Use: parking assistance for cars in garages, alarm signal for persons or animals staying in a certain area. Operating voltage: 9 - 12 V/DC. The device works accordi..

After releasing the push-button, the light signal rotates quickly at the 10 LEDs, slows down and then stops at random at one of the LEDs. During operation all LEDs shine except that LED that just receives the signal. That's why the luminous board looks very decorative. Soldering requiredOperatin..

Kemo Ceramic Capacitor Kit contains a random assortment of capacitor values and voltages. Contains approximately 100 Pieces valies range between 1.2pf and 100nf...