Keep a watchful eye on your power use with this electronic energy meter from ABB. As a three-phase meter, it's suitable for monitoring both commercial and industrial applications. The LCD display means you can see at a glance how much you're using, with the six digits giving you the detail. A minimum measurement of 2mA or 5V DC and a maximum measurement of 40VDC or 100 mA means that no matter how frugal or hungry you are with your consumption, this meter will help you stay clued up about the numbers.

• Operating temperature range of -25°C to +70°C makes it suitable for use in harsh industrial environments
• Accuracy of 1% gives you readings you can rely on

• Data centres
• Factories
• Commercial premises

Three-phase power is a common method of distributing electric power in commercial and industrial settings. It uses three separate alternating current power sources, each out of phase with the other by 120 degrees, to provide a more efficient and balanced power supply than single-phase power.