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Simply smart circuitry since 1971

Testing Instrument Kits


Have a look at Circuit Specialists' low-cost testing instrument kits. These kits are a great way to gain knowledge of circuit design while assembling useful testing instruments like LED counters, temperature meters, and logic probes. Our four-digit presettable down-counter kit uses a microcontroller to do all the work and features four operating modes that control how the output reacts on reaching zero. These kits are perfect for the classroom due to the savings we offer on bulk purchases.


Three Digit LED Counter Kit

$27.95

In Stock

Item no. KIT 1

LCD Temperature Meter Kit

$27.95

In Stock

Item no. KIT 2

Four Digit Presettable Down Counter Kit

$32.95

In Stock

Item no. KIT 154