BENNING SDT 1 Mains Outlet Tester CAT III 300 V

57.94 GBP 51.99 GBP 10% Off

Quickly verify a mains outlet’s safety with the Benning SDT 1. Its dual LED/LCD display shows voltage, polarity and RCD status, while the 17‑mm finger contact probes detect live pins and earth faults up to CAT III 300 V.

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