This tester has been designed to detect alternating voltages in low voltage range up to 250 volts with respect to earth potential.
Suitable for trade and industry professionals.
Tested according to DIN 57680-6, GS, CE compliant.
Each tool individually tested at 10,000 V AC and approved for 1,000 V AC.
Thanks to Pricehipster
I have heard that if you use your finger to test voltage it makes you smarter at maths