Compatible/Replacement for Petsafe SmartDoor Connected Microchip RFID Collar Tags Disc Key (Pack of 2) ZAC19-17682, ZAC19-17683, ZAC19-17240

• MULTI-PET HOMES – Ideal for homes with multiple Cats the Microchip Cat Flap can be used with numerous Key Fobs to ensure only your Cats gain entry
• NO MICROCHIP – Felines with incompatible microchips can still enjoy exclusive entry to your home
• INDEPENDENCE – With the Microchip Cat Flap only opening for your Pets, the Key Fob gives your Cats the freedom and independence to come and go as they please without constant supervision from their owner
• CAT PROOF - The resilient durable design of the Microchip Key Fob can withstand even the most active Cats, as the lightweight and water-resistant design make it practically Cat proof

These tags work with Petsafe cat flaps. Ideal for cats/dogs that are not microchipped. Improves the reliability of the flap/charger in cases where the pet chip does not read well. The key compatible with Petsafe and Petsafe works with Petsafe flaps can be used for an additional pet using them or as a replacement if your pet's Petsafe key is lost. Worn on your pet's collar, the key uses Radio Frequency Identification (RFID) technology using a unique code to signal the cat flap to work as programmed for your pet. The key is about the size of a quarter and does not require batteries to operate. Program up to 20 keys at your door. Key ring included to easily attach to pet's collar. No batteries required. Simply attach to your cat's collar and it's ready to go. The tags are used to operate the rfid/microchip cat flaps so that only the cat with the tag can enter or leave the house. Each necklace tag has a unique code and weighs only 2g. Dimensions: 25 x 24 x 5 mm. Water resistant. Compatible with Petsafe PPA19-16145 and PPA44-16427 Cat Flap Package Included 2 x PetSafe Compatible RFID Tags