Grasp tiny components on circuit boards and other electronic systems in order to test, identify, and troubleshoot them. These testers perform a complete analysis of components by measuring inductance, capacitance, resistance, dissipation factor, quality factor, impedance, and equivalent series resistance. They automatically determine the component model and test parameters, but you can manually select the parameters and test signal levels too. An LED screen displays the component type and measurements. These testers also check if diode voltage is open or shorted, if components are in the best-performance tolerance range so you can sort them, and if there’s continuity in the resistance readings or a shorted conductor. All include a calibration certificate traceable to NIST that states they’ve passed a test for accuracy. They run on a rechargeable battery, so you aren’t tethered by a power cord.

These testers have tweezer-style pointed tips for precision control. Made of stainless steel, the tips withstand wear and high temperatures. They’re also gold plated to conduct electricity and resist corrosion and tarnishing, which hurt conductivity.

Calibrate, test, and troubleshoot a circuit without having to replace individual resistors. These boxes can apply different resistances to reduce the current in your circuit. For example, they can help calibrate a temperature-sensing circuit for use with an RTD. Adjust the resistance to match different temperature points on your RTD, then see if your circuit reads the correct temperature.

The switches are additive, so you can create any resistance, in whole ohm increments, up to 11,111,110 ohms.

Test, troubleshoot, and prototype a circuit without having to solder and desolder individual capacitors. These boxes apply a specific capacitance to your circuit so you can determine the optimal capacitance needed.

Use these boxes in testing and development in place of a capacitor. To integrate them into your circuit, make connections to the binding posts, then flip a switch or combination of switches. When troubleshooting a circuit, you'll know your issue was a faulty capacitor if you connect the box in its place and the circuit behaves as expected. For prototyping, they'll help you determine what size capacitor your circuit needs. Or, just use them instead of a capacitor if you don't feel like soldering.

The switches are additive, so you can create any capacitance, in 100 pF increments, from 100 pF to 11.111 µF.