This handheld multimeter from FLUKE makes testing circuits a breeze. As it's a True-RMS device, you can be sure of high-accuracy measurements, even of distorted or uneven waves. A built-in thermal imager helps you pick up on electrical hotspots before they turn into an issue. And because wires have a habit of making themselves at home in tight spaces, this 279 model comes equipped with Fluke's iFlex current probe – the ideal solution for measuring up to 2500V AC in hard-to-reach spots.

• 8.9cm colour LCD screen offers easy-to-read results
• 10-hour battery life means you won't run out of power in the middle of a job
• Ability to save, recall and review images takes the hassle out of troubleshooting
• Transmits wirelessly to your smartphone for in-the-field data measuring
• Maximum temperature limit of +200°C means it won't lose its cool in hot environments

• Automotive servicing
• Electrical installations
• HVAC systems

An average-responding meter struggles to give an accurate reading for non-sinusoidal (uneven) waves. Since waveforms can be distorted by anything from variable speed drives to computers, that can cause problems. To iron out the issue, a True-RMS meter accurately measures both non-sinusoidal and sinusoidal waves.

Full-featured multimeter with built-in thermal imager
15 measurement functions
Low-pass filter for troubleshooting adjustable speed drives
Thermal imaging reveals hots spots that may indicate electrical issues quickly and safely
102x77 image resolution
3.5 in /8.89 cm color LCD screen
Rechargeable lithium ion
Auto power off to save battery power
Designed for durability, built to withstand a 3 m (9.8 ft) drop, double insulated with raised rubber holster for increased protection