SISI UK TEST FISH KEY FOR SECRET EMERGENCY LIGHT Universal Design to Fit Key / Grid Switches Including Click, MK (K4894, K4898, K4898 EL, K4917, K4918, K4917EL) and Crabtree (4551, 4451, 4461).Sturdy Sheet Steel Construction.Ideal for Electricians, Caretakers, Security and Maintenance Staff etc. SISI UK TEST FISH KEY FOR SECRET EMERGENCY LIGHT Universal Design to Fit Key / Grid Switches Including Click, MK (K4894, K4898, K4898 EL, K4917, K4918, K4917EL) and Crabtree (4551, 4451, 4461).Sturdy Sheet Steel Construction.Ideal for Electricians, Caretakers, Security and Maintenance Staff etc. SISI UK TEST FISH KEY FOR SECRET EMERGENCY LIGHT Universal Design to Fit Key / Grid Switches Including Click, MK (K4894, K4898, K4898 EL, K4917, K4918, K4917EL) and Crabtree (4551, 4451, 4461).Sturdy Sheet Steel Construction.
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