HT Instruments manufactures the MasterKey Elektro, a triangular switchboard key. This tool serves as a meter accessory for replacement or spare parts. Typically used for accessing electrical panels and switchboards, it ensures ease of maintenance and security. https://elecena.pl/product/28785878/ht-instruments-2009760-masterkey-switchboard-key-zinc-75x110mm-70g 2025-05-22 https://elecena.pl/product/28785878/ht-instruments-2009760-masterkey-switchboard-key-zinc-75x110mm-70g 2026-06-17 https://elecena.pl/product/28785878/ht-instruments-2009760-masterkey-switchboard-key-zinc-75x110mm-70g 2026-07-10 https://elecena.pl/product/28785878/ht-instruments-2009760-masterkey-switchboard-key-zinc-75x110mm-70g 2026-08-26