Part Number:FPRO100 fpro100 furnace pro switch clip hvac switch clip  Two Ways To Work:FPRO100 furnace switch clip can be placed directly on the switch, or if you have a probe fire door switch, you can place the magnet side on the side of the metal box, and the side without the magnet can keep the switch inside  Product Dimensions:4.05 × 0.99× 0.62 inches  Easy To Operate:FPRO100 furnace switch clip can be used with multiple types of furnace interlock switches, joysticks and buttons, simplifying service preparation in furnace applications Premium Quality:Durable nylon construction and strong rare earth magnetic ends Warm reminder:Using jumper king hvac tool can help determine the safety of diagnosing and repairing the furnace, no longer have tapes to secure the interlock key, just remove the clip when it is finished, and then the interlock is back to its original state Part Number:FPRO100 fpro100 furnace pro switch clip hvac switch clip