Tired of letting the cat in and out (and in and out) but leery about putting in a cat door? This high-tech version reads your own cat's identification microchip embedded under its skin, so the door will only open for her and not other animals. (This assumes you already had your cat microchipped for identification at your local shelter or vet.) Don't worry, cat lovers, you can program in the microchip numbers for up to 32 cats. The door is designed to fit the standard size cat door hole. It is battery operated and seals up tightly, unlike those swinging flaps that let in drafts, bugs and critters. The SureFlap Microchip Cat Door retails for $150 at sureflap.com.
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