Chauvin Arnoux CA 6511 [P01140201] 500V Analog Insulation Tester. The Chauvin Arnoux CA6511 Insulation Tester is a basic but useful instrument that ensures insulation meets both French and European standards. It can also be used to test continuity with a test current of 200mA. The 500V test voltage makes it suitable for assessing insulation with resistance of up to 1GΩ within domestic and commercial settings and the clear analogue display has a logarithmic scale to accurately portray insulation values. Non-slip, shock-proof housing makes the Chauvin Arnoux CA6511 easy to handle and resistant to the bumps and knocks of regular use. It has double insulation for an extra layer of safety and also has an automatic voltage absence test. One set of AA batteries provides enough power for 1000 tests and the tester is also supplied with all the necessary accessories.