Test 3

A voltage and current meter for the Eurorack power rails, in 8 HP. A four-digit LED display shows the voltage, the real-time current or the stored peak current of the +5 V, +12 V or −12 V rail.

Key features

• The RAIL button steps through the rails and the MODE button through the measurements, each shown by its LED; holding MODE down resets the stored peaks
• The peaks keep updating on all three rails in the background, and the display blinks when a reading goes over its limit
• Measures the current draw of a module powered from the METER OUTPUT header, or several on a flying busboard cable, up to 1 A per rail
• For finding a module's maximum draw, checking a power supply, troubleshooting a DIY build or powering a breadboard
• Sold as a very easy do-it-yourself kit, with an optional front panel