Wrist Strap Tester P/N: WSTESTER The SCC wrist strap tester (WSTESTER) verifies the proper operation of a wrist strap while a person wears it. The tester’s three segment display provides pass/fail indication. An audible tone also warns of failures. This pocket-sized meter is cost effective and includes a calibration certificate and a carrying case. Testers are useful for checking grounding products designed to control static electricity for the protection of electronics. The Tester is powered by a 9 volt battery (included).