Safe electrical working requires the use of a voltage indicator that has been proven with a suitable proving device. With the introduction of four new products, Martindale now has the widest range of proving units available for use with 230V, 440V and 690V voltage indicators. One model also includes a Calcheck function for verifying resistance range calibration on installation and insulation testers.
Choosing a proving device
The six Martindale proving units offer solutions for a wide range of applications, but which one is right for you? Follow our simple flowchart to find out…
View flowchart
Range features include
Suitable for use on 230V, 440V & 690V
AC & DC Stepped voltage
Overmoulded case Low profile Magnetic hanger
Auto off High / low Z Installation tester Calcheck
Test our safe isolation quiz
Do you know the safe isolation basics? Test your knowledge with our safe isolation quiz – 17 questions, multiple choice – good luck!
Find out moreALIVE - our failproof steps to safe isolation
Introducing a memorable, compliant safe isolation procedure which helps reduce the number of electricity-related injuries and fatalities in the work place.
View process
Get the latest
Sign up to receive technical content, product updates and exciting news from Martindale!
Get the latest
Sign up to receive technical content, product updates and exciting news from Martindale!