Identity and body temperature in the same scan.
ISO FDX-B microchip that reads body temperature during a scan. QR pet tag in the box. Plus registry plan included in the price.
An ISO FDX-B microchip with a built-in temperature sensor. One scan with a compatible reader returns the pet's identity and body temperature together, with no thermometer and no restraint. The Plus registry plan and a QR pet tag are included in the base price.

ThermaSense is a full ISO 11784/11785 FDX-B chip. Any universal scanner reads its 15-digit number, so for everyday identification it behaves exactly like a standard chip: 2.12 by 12 mm, bioglass capsule, anti-migration coating, EO sterilized, preloaded in a sterile needle.
A microchip is not a GPS tracker. It has no battery and sends no signal, so it cannot show you where your pet is. What it carries is one 15-digit number. When a clinic or shelter scans the pet, that number comes up, they look it up in a registry, and the registry shows your contact details. That is the whole system. It works because there is nothing in it to wear out, and it fails only when the registration behind the number is out of date. Keep the registration current and the chip does its job for the life of the pet.
Hold a ThermaSense-compatible reader over the shoulder blades and the chip reports body temperature alongside the ID. The sensing range is 30 to 55 degrees Celsius (86 to 131 Fahrenheit) with accuracy of plus or minus 0.3 degrees, which covers the clinical range for dogs, cats and other warm-blooded animals.
For animals that fight a rectal thermometer, that one change matters: temperature checks stop being a wrestling match, so they happen more often. Breeders use the readings to watch for the pre-whelping temperature drop, clinics use them after surgery, and repeated scans build a trend a vet can actually read.
The chip is passive. It takes no reading on its own and stores no history; each number exists only in the moment a reader asks for it.
| Specification | Value |
|---|---|
| Standard | ISO 11784/11785 FDX-B |
| Frequency | 134.2 kHz |
| Identifier | Unique 15-digit number |
| Temperature range | 30 C to 55 C (86 F to 131 F) |
| Temperature accuracy | Plus or minus 0.3 C (0.55 F) |
| Temperature reading | Requires a ThermaSense-compatible reader |
| Size | 2.12 x 12 mm |
| Capsule | Medical-grade bioglass with anti-migration coating |
| Sterilization | EO gas, single-use sterile needle |
| Formats | With single-use implanter, or needle only |
| Pack sizes | 1, 20, 50, 100 |
| Recommended for | Warm-blooded animals |
| Included registration | Plus, included in the price |
| Also in the box | QR pet tag |
Our own chips include the Plus registry plan in the base price: lifetime registration, the universal lookup, 24/7 recovery support and live assistance. There is nothing extra to buy to be fully protected.
Every United Pet Club chip registration starts with Essential, which is free for the life of the pet: the registration itself, the universal lookup, and email alerts when your pet's number is scanned. Plus adds 24/7 recovery support and live assistance. Deluxe adds unlimited profile updates, travel document storage and priority support. Complete is a single payment that switches on everything we offer. Upgrades are one-time purchases, not subscriptions, and you can add one at any point after registration.

Both formats hold the same chip. With-implanter is a sealed single-use unit for placing one chip cleanly. Needle-only suits practices that reuse their own implanter across a litter or an intake day, and costs less per chip.

Implantation is a quick injection under the loose skin between the shoulder blades, and it belongs in trained hands. Veterinarians, registered breeders, shelter staff and technicians place chips every day; some regions also allow trained owners, others require a professional, so check your local rules. If you are unsure, buy the chip, bring it to your next appointment, and have the clinic place and log it in one visit.
Singles ship free in the US and Canada. Packs of 20, 50 and 100 are priced for clinics, catteries and kennels, with shipping calculated at checkout. Every chip in a pack carries its own included Plus registration.

For identification, no: any universal FDX-B scanner reads the ID. The temperature reading needs a ThermaSense-compatible reader, which clinics and breeders buy once and use across every chipped animal.
Within plus or minus 0.3 degrees Celsius across a 30 to 55 degree range. That is tight enough to catch a fever, track a post-surgery recovery, or watch for the temperature drop before whelping.
No. It is passive and only reports at the moment a reader asks. History comes from scanning regularly and logging the numbers, which the United Pet Club app makes straightforward.
Yes. The Plus plan, normally a paid upgrade, is part of the base price of every ThermaSense chip: lifetime registration, universal lookup, 24/7 recovery support and live assistance. Deluxe and Complete remain available as optional upgrades.
Not well. The 30 to 55 degree sensing range is tuned for warm-blooded animals. For reptiles, aquatic and exotic species, ThermaSenseX senses from minus 40 to 85 degrees and is the right pick.
The capsule is medical-grade bioglass with an anti-migration coating, EO sterilized, single use. Placement feels like a routine vaccination: one quick injection under the skin between the shoulder blades.
A pet can carry a second chip, and vets sometimes place one when the first is obsolete or unreadable. Scanners then show two numbers, so keep both registrations current. Talk it through with your vet first.
Range and precision. ThermaSense covers 30 to 55 degrees at plus or minus 0.3, which suits dogs, cats and other mammals. ThermaSenseX covers minus 40 to 85 degrees at plus or minus 0.2 and works for cold-blooded species too.