The Testboy TV 416/432(A) is a compact CEE adapter, comprising of a combination of CEE plug (16 A or 32 A), shockproof socket and self-closing flap cover, as well as integrated electronics for phase sequence measurement (only TV 416/432). In order to determine wiring errors, or to test the effectivity of the FI circuit breaker, it can be combined with the socket test devices Testavit Schuki 1A, 2K and 3A.