Selecting a Replacement Oscilloscope Probe is Easy—When You Know How

How to select a replacement high-impedance passive probe for an oscilloscope.

CT3900B Series DMM Probes and Accessories - Cal Test Products CT3900B Series DMM Probes and Accessories Publish Date: 2021-03-30

Cal Test Electronics’ CT3900B series DMM probes and accessories comply with the rigorous safety standards of UL 61010-031.

CT4140A, 4mm Inline Fuse Adapter
CT4140A, 4mm Inline Fuse Adapter

Introducing the CT4140A inline fuse adapter, rated at 1000 volts Cat IV. This adapter adds flexibility to virtually any electrical application as it fits in-series with existing test set-ups. Easily connecting in line with sheathed 4 mm banana plugs.

Test Lead Builder Publish Date: 2018-04-10

Build your own test leads from Cal Test using the test lead builder. Test leads are in stock and ship same day at digikey.com.

Safely Test Line-Powered Switched Mode Power Supplies Publish Date: 2018-03-01

Testing line-powered switched mode power devices can be risky without the proper techniques, precautions, and accessories.

Understanding, Selecting, and Effectively Using Current Probes Publish Date: 2017-08-16

Current probes allow simple non-invasive measurements instead of measuring directly with an oscilloscope using current shunts, or current transformers.

High Voltage Differential Probes
High Voltage Differential Probes

Introducing new Elditest brand High Voltage Differential Oscilloscope Probes from Cal Test Electronics.

Test Lead Builder
Test Lead Builder

A short video on how to use Cal Test Electronics "Test Lead Builder" feature to design your own custom test leads.

High Voltage Oscilloscope Probes
High Voltage Oscilloscope Probes

Cal Test Electronics introduces a new line of High Voltage Oscilloscope Probes. They feature input voltage from 8 to 39 kV.

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Cal Test Electronics offers over 3000 products in 7 major connection categories in the test instrument lines.