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Simply smart circuitry since 1971

Velleman Timer and Controller Kits

Have a look at our lineup of Velleman timer and controller kits which we're proud to offer at an incredible value. Circuit Specialists carries universal start/stop timer, temperature sensor, and electronic watchdog kits that offer you the chance to gain hands-on experience while assembling functional circuits. Our watchdog kit responds to environmental noise according to the adjustable sensitivity with a realistic simulation of a barking dog and can be connected to a louder amplifier.