• Magnetic key fob collar for Ideal ""E-Cat"" electronic pet doors
  • Key dimensions: 1 3/8"" long, 3/8"" wide magnet, and 5/8"" wide key ring
  • Lightweight, weighing under 1oz
  • Compatible with any collar, comes in black only
  • Suitable for multi-cat households or as a replacement key

Ideal E-Cat Collar Key for Electronic Pet Door

Battery-Free Magnetic Access For Ideal E-Cat Doors

Regular price $50.00

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Weighing under 1 oz, this passive magnetic key attaches to any standard collar to deliver continuous, battery-free access for your cat without requiring programming.

  • Magnetic key fob collar for Ideal ""E-Cat"" electronic pet doors
  • Key dimensions: 1 3/8"" long, 3/8"" wide magnet, and 5/8"" wide key ring
  • Lightweight, weighing under 1oz
  • Compatible with any collar, comes in black only
  • Suitable for multi-cat households or as a replacement key

Installation & Fit

  • Attaches to any standard cat collar or harness ring using the included 5/8" split ring.
  • Compact key housing measures 1-3/8" long with a 3/8"w internal magnet.
  • Exclusively operates the magnetic sensor latch on Ideal E-Cat Electronic Pet Doors.
  • Tool-free, instant setup requires no batteries, programming, or electronic sync.

Best Suited For

Ideal for:

  • Battery-Free Maintenance: Passive magnetic operation weighing under 1 oz, ensuring your cat enjoys lightweight, comfortable access without ever needing battery swaps or recharging.
  • Owners of Ideal "E-Cat" Electronic Pet Doors needing replacement keys or additional fobs for multi-cat homes.
  • Attaching quickly to any standard cat collar via the included split ring.

Questions

How do I measure my old flap to order the right replacement size?

Measure the flap panel itself, not the hole it covers and not the outside of the frame. Take the width across the flap at its widest point, then the height from the top edge, including the section that sits under the retainer, down to the bottom edge.

Then count the holes along the top edge and measure the distance between the centers of the two outermost holes. Flap dimensions repeat across brands but hole patterns do not, so that spacing is usually what tells us which flap is actually yours. The size guide on the product page lists the flap dimensions for each size we carry, so you can check your measurements against it before ordering.

Can I buy just one flap for a double flap pet door?

Yes. On a double flap door the two flaps are separate parts, so you can replace one and leave the other in place. That is common, because the exterior flap takes the weather and the UV and usually wears out first.

Order the same size as your door and tell us which side you need if the two differ. If both flaps are the same age it is worth replacing them together. A new flap sits against the frame more tightly than a relaxed older one, and mixing the two can leave the seal uneven.

Does a replacement flap come with magnets and hardware, or just the flap?

Our replacement flap kits arrive ready to install. The flap ships with the parts needed to fit it to your door, so you are not sourcing magnets, rivets or retaining strips separately.

If you would like to add extra magnets for a firmer close, those are available separately as well.

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Product Details

Product Details


The Ideal "E-Cat" Magnetic Collar Key provides selective, hands-free access for your pet while keeping stray animals out of your home. Designed for seamless attachment to any standard collar, it is an ideal solution for multi-cat households or replacing lost key fobs.

Lightweight & Battery-Free Access
Weighing under 1 oz, this compact magnetic key fob attaches comfortably to your cat's existing collar without adding bulk. The passive magnetic design operates without batteries, automatically unlocking the door panel only when your cat approaches.

Technical Specifications & Features:

  • Targeted Compatibility: Designed for use with the Ideal "E-Cat" Electronic Pet Door.
  • Compact Profile: Measures 1-3/8" long with a 3/8" magnet and a 5/8" key ring.
  • Universal Attachment: Fastens quickly to any collar ring.
  • Battery-Free Design: Passive magnetic technology ensures reliable, continuous operation.

Explore our complete collection of replacement electronic cat collars, magnetic collars, and key fobs.

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