Published: 6 March 2026
Category: Video
The Martindale PD690SRD AC/DC Proving Unit – for your safe isolation process.
Fast, easy to use and suitable for voltage indicators and testers up to 690V. Switch to DC output mode via the push button.
• Output up to 690V
• Switchable AC & DC
• 5 ranges
• Compact slimline design
• Exceptional durability
Ideal for commercial and industrial applications where safe electrical working requires the use of a voltage indicator that has been proven by a suitable proving device.