Mouse Identification

Service Vendor(s) Provider Price
Ear Punch Roboz Surgical Instruments Co., Inc.
Braintree Scientific, Inc.
Provided by The Jackson Laboratory $4.43 Each
Ear Tag (Metal ID Tag) National Band and Tag Company
Jorgensen Labs
Provided by The Jackson Laboratory $4.43 Each
LabStamp® Tail Tattoo — Black Ink
LabStamp® Tail Tattoo — Green UV Ink
SOMARK Innovations Inc. Provided by The Jackson Laboratory
(general tail tattoo information)
$8.63 Each
UID Microchip Implant*
UID MiniMax Microchip Implant
UID Identification Solutions Provided by The Jackson Laboratory $13.80 Each
Microchip Insertion -- Provided by Customer $24.19 Each
RapID Ear Tag RapID Provided by The Jackson Laboratory $8.23 Each

Services do not include price of the animal, shipping or container charges

* This product is temporarily unavailable for use on immune compromised strains. Please contact Technical Support for additional information

Product Information

Ear Punch

Ear notches or holes produced by an ear punch device. Used for wean age or older mice to create a unique identifier. Common ear numbering systems:

Ear Tag

A metal ID tag placed in the mouse ear pinna with a special applicator. For mice wean age or older.

LabStamp® Tail Tattoo

FDA-approved pigment on the tail to identify post wean mice. Consult your institution's ACUC for accepted protocols. Please click here for additional information on the LabStamp® Tail Tattoo system from SOMARK Innovations Inc.

UID Microchip Implant

The UID microchip implant (UID Product# UC-1485) is a small subcutaneous implantable RFID device for 100% positive identification from wean age to adult mice. UID microchips are MRI, Gamma/X-Ray and Ultrasound compatible. Each microchip maintains a unique alpha numeric ID, along with programmable on-board memory. A hands-free scanner makes the ID and study related information readily available and easily accessible. The readers can be integrated into any LIM system or computer. Mice may need to be anesthetized or sedated for implantation. Consult your institutional ACUC guidelines.

UID MiniMax Microchip Implant

UID's MiniMax microchip (UID Product# UC-1283) offers the same benefits and instrument compatibility as the larger microchip while reducing the area of injection by 25% and occupying 25% less space within each mouse.

For a direct comparison of the two UID RFID microchips, please expand the table below.

UID RFID Microchip Technical Data Chart

UID Transponder Specifications
Item Name MiniMax Programmable Transponder Mouse Programmable Transponder
Item # (SKU) UC-1283 UC-1485
Applications/Use Animal ID Animal ID
Mouse Size Small mice and larger Medium mice and larger

Technical Specifications
Diameter 1.2mm 1.4mm
Length 8.3mm 8.5mm
Weight 0.026g 0.027g
Volume 9.86mm3 13.10mm3

Sterile/non-sterile Sterile - ETO
Preloaded in cannula (Y/N) 304SS, Triple ground, sterile cannula
Injection Needle 17.0 gauge (1.45mm O.D.) 0.0585" ± .001" OD x 0.52" ± .001" ID X 1.693" ± .035" LONG 15.5 gauge (1.99mm O.D.) 0.078" ± .001" OD x 0.057" ± .001" ID X 1.693" ± .035" LONG
Programmable Yes - 1-16 character ID code

RFID Protocol

UI Devices
Operating Frequency 134.2 kHz
RFID Programmable (Read/Write)
Unique ID (i.e., 32bit) Unique, non-repeating, alpha-numeric ID code (32 bits)


Biocompatibility Glass encapsulated
Anti-migration coating No coating

Mechanical Resistance

Vibration test IEC 68.2.6
Shock IEC 68.2.29

For more information - see our FAQ:


What is a RFID microchip?

A RFID (short for “radio-frequency identification”) microchip is a small implantable device that is often used to store information in a fixed location. The microchip is activated when a RFID reader emits a signal to read the information stored on the chip. Without the reader, the chip is inactive.

What is a remnant tag?

A remnant tag is a subdermal RFID microchip that remains with a mouse through the time of delivery. At JAX, the remnant tag is used to store and remit specific animal identification information. A customer receiving a mouse with a remnant tag may also utilize the RFID microchip for internal animal tracking by using an appropriate RFID reader. Otherwise, the chip will remain inactive for the remaining lifespan of the mouse.

What size is the remnant tag?

The tag is cylindrical and approximately 8.3mm L x 1.2mm D.

How is a mouse impacted by a remnant tag?

Each RFID microchip is implanted into the back of the mouse between the scapulae. The chip has been tested to remain permanently below the skin without resulting in lesions and be successfully scanned by an RFID reader. Each mouse is expected to live normally until sacrifice or death.

When is the remnant tag active?

A RFID microchip is only activated when solicited for information by a RFID reader. No information is transmitted without activation.

Why use a RFID microchip over an alternative like an ear tag?

In some situations, ear tags are ineffective for tracking animal identity. This is especially apparent in younger colonies where ear sizes are small and, thus, tagging space is limited. By implanting a microchip, JAX researchers can track individual mice at an earlier age, do so more ergonomically, and ensure the long-term identity of each mouse is secure.

What mice will include the remnant tag?

Initially, two mouse strains (002810 & 006494) have been prioritized. RFID microchipping is also available for other strains upon request via this mouse identification page (see above).

Does the remnant tag cost more?

The price of mice requiring a remnant tag will not increase as a result of this change. JAX reserves the right to update pricing for mice and services, when deemed necessary.

Is the remnant tag safe for the mouse?

Yes. JAX has tested the RFID microchips for safety of the mouse and accuracy of stored data. The chips show no measurable impact on animal health, are confirmed safe in multiple phenotyping platforms, and are considered generally to be MRI-safe.

Because research outside of JAX can involve different equipment and methods, JAX recommends additional safety validation tests be performed by each client.

Microchip Insertion

Customer supplies device or implant. All devices or implants must be shipped directly from the manufacturer. Please contact customer service at for details on shipping and handling.

RapID Ear Tag

RapID Ear Tags are humane, automated, mini-ear tags providing fast and accurate identification for lab animals. The hardened 2-D data matrix codes scan instantly with 100% accuracy providing millions of unique IDs. Multiple colors allow immediate secondary (visual) identification without scanning. RapID Ear Tags are totally MRI and autoclave compatible, and are minimally invasive (no surgery required).