The CAT rating is the measurement category, showing where on an electrical system a meter may be used and up to what voltage. CAT III covers fixed installation and distribution circuits, and CAT IV covers the origin of the supply. The page lists meters marked CAT III 600V, CAT IV 600V and CAT IV 1000V; choose one rated at or above the circuit you test.
A clamp meter has its own display and reads current through jaws closed around a conductor; the page lists auto-ranging and manual-ranging digital clamp meters and a mini AC/DC clamp metre with NCV. Current clamps are listed by range, at 20A/80A and 40A/400A AC/DC, and are typically accessories used with a separate meter, so check compatibility with yours.
Count the measurements you actually make. Digital multimeters here are named with 6, 7, 8, 11 and 16 functions. A lower count typically covers basics such as voltage, resistance and continuity, while higher counts add further tests. Two of the 8-function models include a thermocouple for temperature readings, so check the function list against your usual jobs.
The page lists a high voltage tester rated CAT IV 1000V and named for EV and hybrid use, alongside an insulation resistance meter. For high voltage vehicle systems, choose a tester whose category and voltage rating cover the system you are working on. The 3-48V and 3-60V DC test lights on the page are for low-voltage circuits only.
It varies by model, so read the product name. Examples on the page include a manual-ranging digital multimeter with test leads and a case, versions with test leads and a temperature probe, and an automotive digital multimeter with a temperature probe and an inductive clamp. If you need temperature readings, pick a model that lists the probe or a thermocouple.
It combines a test light, which shows at a glance whether a circuit is live, with a display that gives the actual voltage. The page lists versions for 3-48V DC and 3-60V DC, plus a 6-24V circuit tester and a 6-42V open and short DC circuit detector. Choose a range that covers the system voltage of the vehicles you work on.
Multimeters and Accessories
This category covers meters and testers for electrical fault finding on vehicles, machinery and installations. The Multimeters page lists digital multimeters in manual and auto-ranging versions, pocket and analogue meters, models with thermocouple temperature measurement, clamp meters and current clamps. Automotive testers are also included, such as glow plug testers, lambda sensor testers, key fob testers, integrated test lights with voltmeters and digital thermometers with probes.
Brands include Sealey and Draper. Auto-ranging meters select the measurement range automatically, which speeds up routine checks, while manual-ranging meters give direct control of the range. Compare the number of functions against the tests you carry out, and choose a clamp meter or current clamp where current needs to be measured without breaking the circuit.
The CAT rating is the measurement category, showing where on an electrical system a meter may be used and up to what voltage. CAT III covers fixed installation and distribution circuits, and CAT IV covers the origin of the supply. The page lists meters marked CAT III 600V, CAT IV 600V and CAT IV 1000V; choose one rated at or above the circuit you test.
A clamp meter has its own display and reads current through jaws closed around a conductor; the page lists auto-ranging and manual-ranging digital clamp meters and a mini AC/DC clamp metre with NCV. Current clamps are listed by range, at 20A/80A and 40A/400A AC/DC, and are typically accessories used with a separate meter, so check compatibility with yours.
Count the measurements you actually make. Digital multimeters here are named with 6, 7, 8, 11 and 16 functions. A lower count typically covers basics such as voltage, resistance and continuity, while higher counts add further tests. Two of the 8-function models include a thermocouple for temperature readings, so check the function list against your usual jobs.
The page lists a high voltage tester rated CAT IV 1000V and named for EV and hybrid use, alongside an insulation resistance meter. For high voltage vehicle systems, choose a tester whose category and voltage rating cover the system you are working on. The 3-48V and 3-60V DC test lights on the page are for low-voltage circuits only.
It varies by model, so read the product name. Examples on the page include a manual-ranging digital multimeter with test leads and a case, versions with test leads and a temperature probe, and an automotive digital multimeter with a temperature probe and an inductive clamp. If you need temperature readings, pick a model that lists the probe or a thermocouple.
It combines a test light, which shows at a glance whether a circuit is live, with a display that gives the actual voltage. The page lists versions for 3-48V DC and 3-60V DC, plus a 6-24V circuit tester and a 6-42V open and short DC circuit detector. Choose a range that covers the system voltage of the vehicles you work on.
Get exclusive updates on offers & latest trends in construction industry
By sharing your email, you agree to our privacy policy & terms of service
Cart
POPULAR CATEGORY
