A GPS tracker can help you locate a dog while it is missing; a microchip cannot show the dog’s location. A microchip helps identify the dog after someone finds it and has it scanned. For the best chance of being contacted and finding your dog, use a registered microchip, a readable collar ID tag, and—if you want location information—a GPS tracker.
What each tool does
Microchip: identification after a dog is found
A pet microchip is not a GPS device. It transmits a unique identification number when activated by a compatible scanner; it does not send a location signal. The American Veterinary Medical Association (AVMA) states that a microchip “is not a GPS device and cannot track your animal.” AVMA: Microchipping FAQs
If someone finds your dog and a shelter, veterinary clinic, or other equipped facility scans the chip, the number can be matched to a registry so you can be contacted. The chip itself does not store your phone number or address. That only works if the number is registered and the registry has current contact information. In the United States, there is no single centralized pet microchip registry.
GPS tracker: location information while it is working
A GPS dog tracker is the wearable option for getting location information while your dog is missing. It must remain attached to the dog and be operating. A tracker is not a replacement for identification: it cannot help a finder contact you if it is lost, detached, or no longer functioning.
#1 Best Overall
- 【Support Multipe Microchip Formats】Universal microchip scanner supports EMID / ISO11784 / ISO11785 / FDX-B（15 digit microchips）. Please note, the microchip reader CAN NOT read Avid chips, and the 9-digit ID can not be recognized. Only the 15-digit international standard protocol can be recognized. Please check the format of the microchip before purchasing.
- 【Easy To Operate & Fast Scan】Our pet microchip scanner is easy to operate, one button to read. Our microchip scanner adopt advanced RFID technology, responsive and fast scanning, it can better improve the efficiency of work. Please note, if no label is scanned, the device will automatically turn off after 180 seconds, or you can press and hold the button for 3 seconds to turn off the device.
- 【 Large Data Storage】Our pet microchip scanner can save 128 animal chips. It can be transferred to a computer or mobile phone via a USB cable connection. Our pet chip scanner also features a data-erase function, refer to the user manual for instructions.
- 【Rechargeable Battery】Our pet chip scanner supports USB charging, eliminating the need for frequent battery replacements, it can last for more than one year after being fully charged.
- 【Easy To Carry】Our scanners are lightweight and compact, making them easy to carry and ideal for both indoor and outdoor use. The package includes one scanner, a USB cable, and a user manual.
Specific accuracy, coverage, battery life, and subscription requirements depend on the device. The sources cited here do not establish performance for any particular tracker, so check the individual model’s specifications and operating requirements rather than assuming all trackers work the same way.
How the tools compare
| Tool | What it helps with | What it depends on | What to keep current |
|---|---|---|---|
| Microchip | Identifying a found dog and helping a registry contact you | A compatible scanner, a registry lookup, and a registered chip number | Your phone, email, and address on the registry |
| GPS tracker | Getting location information while your dog is missing | The device staying attached and operating; requirements vary by model | Device-specific operating needs and settings |
| Collar ID tag | Letting a finder read your contact details directly | The collar and tag staying on the dog and remaining legible | The contact details printed on the tag |
A collar tag is often the simplest route to a quick call because a finder can read it without a scanner or registry lookup. A microchip can still help if the collar or tag has come off. These layers cover different failure points rather than duplicating one another.
Rank #2
- UNIVERSAL MICROCHIP COMPATIBILITY: Reads all ISO microchips plus 9-, 10-, and 15-digit chips from any brand. Ideal for scanning horses, livestock, pets, and other animals in clinics, shelters, barns, or field settings.
- BLUETOOTH CONNECTIVITY FOR FAST, ACCURATE DATA TRANSFER: Easily sends scanned chip numbers to Bluetooth-enabled devices within a 25-foot range for quick syncing to computers, tablets, or shelter management software. Reduces manual data entry errors and speeds up check-in and intake processes—perfect for busy clinics or multi-pet facilities.
- BACKLIT LCD SCREEN WITH 15-MINUTE DISPLAY HOLD: Features a bright blue backlit LCD screen with bold white text displaying the full chip number on one line for easy reading—day or night. The 15-minute display hold gives ample time to record the scan without rushing, ideal for high-volume or field settings.
- RECHARGEABLE BATTERY WITH AUTO POWER-SAVE MODE: Includes a rechargeable 9V battery and charging unit for long-lasting performance. The auto shut-off function conserves power between uses—great for mobile vets, rescue teams, or animal control officers who need dependable scanning during long sessions.
- LIGHTWEIGHT, DURABLE DESIGN WITH PROTECTIVE CASE: This 7-inch handheld microchip scanner is compact, ergonomic, and easy to carry. Includes a protective carrying case to guard the reader during storage and transport. Built for dependable use in clinics, shelters, barns, or field settings.
How to prepare before your dog goes missing
- Fit a collar with a readable ID tag. Put current contact details on it so a finder can reach you directly.
- Register the microchip and verify the details. Confirm the registry has your current phone number, email, and address. If you move or change numbers, update the record.
- Choose a GPS tracker if location information matters to you. Check the specific device’s coverage, battery, attachment, and any other operating requirements. Do not assume a tracker provides uninterrupted location information.
The AVMA recommends maintaining current microchip registration details and keeping visible identification on pets. Read the AVMA’s microchip guidance.
If your dog goes missing
Start searching promptly and combine nearby outreach with identification checks. The American Kennel Club (AKC) recommends searching nearby, asking neighbors for help, and contacting local police or fire departments, animal shelters, veterinary offices, groomers, dog parks, and pet stores. Its guidance also recommends sharing a clear photo and contact details on posters and social media, visiting shelters daily, and calling for updates. These are practical steps, not a guarantee of recovery. AKC: Lost Dog? What to Do If Your Pet Goes Missing
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- Stores lost pets chip numbers
- Alerts the user that a pet is missing
- Rechargeable by plugging into a pc
- Reads most microchips in pets, dogs, cats
- If you have a GPS tracker, use its location information while the device is attached and operating.
- Tell local shelters and veterinary offices that your dog is missing, and provide a clear photo and identifying details.
- Keep checking shelters and calling for updates rather than relying on a single report.
- If someone finds your dog without usable tags, ask them to have the dog scanned at an animal shelter or veterinary clinic. The chip number can then be checked against a registry. AKC: What To Do if You Find a Lost Dog
Which should you choose?
If your question is specifically how to locate a dog that is still missing, a GPS tracker is the relevant tool. If your dog is found by someone else, a registered microchip can help connect that person to you—even when the collar is gone. A tag provides a direct, visible contact route. Using all three gives you a location layer, a permanent identification layer, and an easy-to-read layer without expecting any one tool to do everything.
Quick Recap
Best Value
- Microchip Reader with a 1.44in high-brightness OLED display, You can view scan history, upload data, set formats, Bluetooth wireless connection and more.
- Pet Microchip Scanner Three ways to connect USB connection, wireless 2.4G connection, Bluetooth connection. There is no restriction on location to view data, which saves you more time.
- Microchip Scanner SUPPORT FOR ISO 11784/11785, FDX-B AND ID64 FRID this Portable pet ID Microchip Reader Scanner could read almost all FDX-B (15 digit) microchips for animal identification in compliance with ISO 11784 and ISO 11785 norms. It is widely used for animal management, resource management, railway inspection.
- Save up to 240 tag information, you can upload these information to the computer via wireless 2.4G, Bluetooth 6.1.
- Support for multiple languages. You can set up the language through the software we send you.Improved Recognition Performance:Faster recognition speed and larger recognition range than older scanners. Upgraded the sensitivity of the scanner. It can better improve the efficiency of work.
Rank #4
- Universal Compatibility & Fast Reading: Treamvp rechargeable micro chip reader works at 134.2KHz/125KHz, supports EMID, FDX-B (ISO 11784/11785) microchips; reads in <100ms with 0.5s interval, stable for glass tags and animal ear tags
- OLED Display & Clear Indication: The Pet Microchip Scanner Built-in 0.91-inch high-brightness OLED screen and buzzer; clearly shows data content and status even in strong outdoor/indoor light
- 128 Record Storage & Rechargeable: Save up to 128 tag information; easy data transfer to computer via USB cable for pet/livestock management and traceability. 800mAh rechargeable battery,charging and data uploading, a universal cable
- Portable & Durable Design: Compact size 6.89 x 3.46 x 1.38 inches, lightweight 0.24 lbs/3.99 oz; Easy to carry and ergonomic handle design for comfortable long-time holding and easy to carry; durable for various environments (indoor/outdoor, farms, vet clinics)
- Wide Temperature Range & Stable Performance: Operates from -10°C to 50°C, stores from -30°C to 70°C; reliable for farms, vet clinics, home and outdoor use
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