Best current price£5.99from B&Q
Shopping.co.uk recommended and popular offers
B&Q£5.99Visit shop B&Q - Test Fish Key For Secret Emergency Light Grid Switches Replacement Key (Pack Of 3)
Visit shop2 offers from £5.99 - £6.99
View price history by clicking the chart icon.
The SISI UK Test Fish Key is an essential tool for facility managers, electricians, and maintenance technicians who need to perform routine functional testing on secret emergency light grid switches. This durable key provides reliable access to specialized switches from major brands like Click, MK, and Crabtree without damaging the faceplate or mechanism. While it is highly effective for its intended professional use, users should confirm their specific switch model compatibility before attempting to engage the lock to avoid potential wear or obstruction.
| Brand | SISI UK |
|---|
No, it is specifically engineered for compatibility with Click, MK, and Crabtree secret emergency light grid switches mentioned in the guide.
No, this key is strictly for secret emergency light grid switches and will not function with standard wall lighting switches.
Each pack includes three individual test fish keys.
When used correctly by aligning it carefully with the slot, it is designed to minimize cosmetic impact on the switch faceplate.
Keep them in your technician tool pouch or on a keychain to prevent loss, as their small size makes them easy to misplace.
Verify that your switch model is one of the supported units and check the slot for obstructions or debris.
Ensure the key is fully seated in the slot and apply direct, straight pressure. Do not wiggle the key at an angle.
To use the key, align the blade with the slot on your specific grid switch and apply gentle, steady pressure until you feel the test mechanism engage. Do not force the key if it feels obstructed, as this may indicate an incompatible switch model or a misalignment. Compatibility is verified for MK (K4894, K4898, K4898 EL, K4917, K4918, K4917EL) and Crabtree (4551, 4451, 4461) series. For maintenance, keep the keys in a dry environment and occasionally wipe them with a clean cloth to remove dust or debris, which ensures smooth entry into the switch housings during use.
Sportfish Gold Loop Extra Fine Tip ScissorsFrom £14
Muji Stainless Steel Wire Clip Hooks - Silver - 4 PackFrom £5
Radiator Shelf Brackets - White - 2 Pack - MKGTFrom £15
Verve Bamboo Hoop Plant Support - BrownFrom £4
Robert Welch Malvern 42 Piece Cutlery Set - SilverFrom £270
Trespass Chomp Cutlery Set - MulticolorFrom £3
Nike Esnt Bdg Lanyar - BlackFrom £7
ZWILLING Roseland Cutlery Set - 60 Pieces - Polished - SilverFrom £299
Orvis Tool KitFrom £44
Amefa Bliss Cutlery Set - Silver - 16 PieceFrom £14
VEVOR U-Shaped Post Anchor Ground Spike - 4 Pack - SilverFrom £51
Roseline Thinning Scissors - 5.25"From £76