Slim Microchip T-SL

Slim T-SL vs. Standard T-ISDatamars Slim is a revolutionary, new, polymer microchip that doesn’t compromise read distance for needle gauge. The thin, 14 gauge (approx. 2 mm) needle allows for smooth, gentle implantation with minimal penetration force into most species at any life stage – from pocket pets to horses, from puppies and kittens to seniors.

Datamars Slim (sold in North America under the Microfindr brand) is preloaded into our special, ergonomic, ‘No Return Click’ syringe for peace of mind that implantation has been performed correctly. Designed for one-handed use, it allows practitioners to use a natural approach and calm body language, leaving one hand free to calm the animal. Datamars Slim has the added benefit of a removable needle – once implantation is complete, separate the needle for easy sharps disposal with your veterinary waste; the remainder of the syringe body can be recycled.


  • Unique, unalterable and permanent animal identification system
  • Remarkably lightweight, at only 0.05 grams
  • THIN microchip delivered in 14 gauge syringe doesn’t compromise read distance for needle gauge
  • Ergonomic, ‘No Return Click’ – Listen for the “Click”! It means the chip is properly implanted and locks the injector, keeping the microchip from being retracted during syringe removal. Proper implantation helps prevent microchip migration!
  • Removable needle for easy sharps disposal and biohazard cost savings; plastic syringe body can be recycled
  • 15-digit, ISO-compliant microchips can be read internationally
  • Polymer offers greater tensile strength and mechanical resistance
  • Ideal for people who travel with their pets

Needle Removal

slim_handsThe removable needle on Datamars Slim can take a bit of getting used to (especially if you are left-handed). The orange cap should twist just slightly counter-clockwise to be removed in order to implant the microchip. If you turn clockwise, the entire needle assembly will come off. That whole piece is designed to twist off from the body of the syringe so that you can put just that piece in your sharps disposal after implantation, then recycle or throw away the remaining plastic syringe. In addition to the green benefits of recycling vs. trash, this also helps lower your biohazard disposal costs.

Technical Specifications

Dimensions 10.9 ± 0.4 x 1.6 ± 0.05 mm
0.43” ± 0.016” x 0.06” ± 0.001”
Weight 0.05 grams
0.001 ounces
Operating temperature -25°C – +70°C
-13°F – +158°F
Storage Temperature -40°C to +90°C
-40°F to +194°F
Power Supply Microchips are passive – they do not require batteries to operate
Frequency 134.2 kHz
Read Distance (with universal scanner) Up to 9.5 inches or 24.2 cm
Microchip Casing Bio-compatible polymer
Syringe Needle 14 gauge stainless steel, sterile

How Does Microchipping Work?

DW_dog+reader DW_reader+syringe DW_dog+syringe DW_computer+manual DW_dog and man
1. Scan the pet to verify whether he or she has a microchip that has been previously implanted. 2. Scan the Datamars blister pack to verify that the microchip is functional, and that the ID code matches the accompanying barcode labels. 3. Implant the Datamars microchip, then rescan the pet to verify that the microchip can be localized. 4. Do not forget to complete the pet’s registration in a database like PetLink! 5. If the pet is ever lost, hopefully his or her microchip can be scanned, and the owner’s information retrieved – allowing the pet to find its way home!
Life would be easier if pets could talk. A microchip gives pets a silent voice when they can’t speak for themselves.

Microchipping is the only unique, unalterable, tamper-proof, permanent form of identification that owners can provide for pets. Once microchipped, owners are encouraged to register their pets so that their contact information is on record in the event that their pet is ever lost or stolen. A microchip that is registered gives your pet a silent voice, and gives owners peace of mind that your beloved pet will find its way home.

A microchip is as small as a grain of rice, and is easily implanted under the skin of your pet between its shoulder blades. It can’t be removed or fall off. Giving a pet an electronic ID is like giving them their own passport.

Today, microchipping and registration is considered the most reliable and efficient means of pet identification and reunification. Cities, states and provinces, even national governments and animal health organizations around the world have introduced legislation to make the electronic identification of companion animals mandatory in an effort to eradicate the problem of unidentified, unclaimed and unwanted pets.

Implantation Sites

chip on animals
Microchips are suitable for any and all companion animals!

Microchips are most often implanted in animals as outlined in the diagrams above. When scanning dogs and cats, begin in the neck area where the microchip is most likely to be located, but be sure to scan slowly and patiently. Scan repeatedly and over the entire body to ensure whether or not a microchip can be localized.

For more information about microchip implantation and scanning, please visit the World Small Animal Veterinary Association’s website at