VU meter with a scale consisting of 10 LED's and an adjustable input. Dot or bar indicator. Supplied with 1 front panel suitable for horizontal or vertical mounting.

Check cables for continuity and identify individual wires. Perfect tool to check speaker cable polarity. LED indication for open circuit, shorts and correct or wrong polarity. Push-button operation with auto power off. Low power consumption: 10mA

Build your 3D LED cube and created unlimited 3D effects. The unit comes standard loaded with effects. Connect to your computer (USB) and create your own! (free software download) Also available with White LEDs

The WST8089 Digital Clock kit can also display temperature (Centigrade or Fahrenheit) with the use of kit  K8067 which has to be purchased separately. The words Open/Closed can also be displayed if desired.

This computer interface board has a total of 33 inputs / outputs, including analogue / digital and a PWM output. The connection to the computer via the USB port is galvanically-optically isolated, so that damage to the computer is impossible thus providing a high level of secure implementation. All communication routines are contained in a Dynamic Link Library (DLL). You may write custom Windows* Applications in Borland Delphi, Borland C++ Builder, Microsoft Visual Basic, Microsoft VC or most other 32-bit Windows application development tool that supports calls to a DLL.

The VM204 is an Ethernet controlled board with 4 relay outputs, 4 digital inputs and 1 analogue input.
It can send e-mail notifications when the status of an input changes and features an embedded webserver. Free apps are available for Android® and iOS®.

Enjoy your Halloween with this little jack-o'-lantern and electric candle minikit MK202 by Velleman. The candle has a realistic flickering flame mode and cannot be blown out by the wind! Pumpkin housing included.

The Whadda WSAH4001 is a small amplifier,constructed around the TDA2003 IC, capable of delivering 4Wrms at 4 ohms. The IC is fully protected against overheating and short circuits. A conventional direct current is sufficient as power supply.

Beautiful tree consisting of 134 LED's. 18 randomly blinking candles. No need to remove battery when using external supply. 12V operation possible for use in cars, vans, trucks. On/off switch included.

A good pink noise generator and a spectrum analyser are indispensable if you want to analyse the acoustic properties of a room (usually a living room). Moreover, you also need a microphone with a frequency characteristic that is as linear as possible (from 20Hz to 20kHz). If you have an equaliser, then the response can not only be checked but also corrected. The kit is easily adapted to produce "white noise"