Seaward-Powerplus-1557-Multi-Function-Tester-c-w-Software-363A910-Di-Log-363A910-P-The-Power Check-1557-is-the-only-comprehensive-PAT-&-Installation-instrument-verification-system-in-one-rugged-drop-proof-enclosure-It-tests-to-BS-7671-BS-EN-61557-IET-Onsite-Guide-&-IEE-Code-of-Practice-It-has-full-instrument-verification-against-all-relevant-standards-&-confirms-performance-between-verifications-this-is-information-required-by-NICEIC-ELECSA-Corgi-&-others-P-