The UID MiniMax Programmable Microchip (UC-1283) is the perfect choice for reliable identification of very small mice (as young as 10 days old). With dimensions of just 1.2 mm in diameter and 8.3 mm in length, this transponder stands as the smallest programmable microchip available on the market today. Each microchip is individually packaged in a sterile, 17G disposable needle, guaranteeing a swift, hassle-free, and safe implantation process. It is designed to work seamlessly with a wide range of reusable UID injectors, offering flexibility and convenience. Additionally, the MiniMax is also available in sterile disposable injectors for your convenience. UCT-2112-24 Temperature and Programmable Microchips 2.1mm x 13mm Box of 24 UCT-2112-198 Temperature and Programmable Microchips 2.1mm x 13mm Box of 198 UCT-2112-990 Temperature and Programmable Microchips 2.1mm x 13mm Box of 990 Features and Specifications Applications: Animal identification Species: Small mice (including 10 day old neonate mice) Size: 1.23mm x 8.3mm Weight: 0.026g Volume: 9.86 cubic millimeter Implantable: IP, SQ in small mice (as young as PND 10) Unique ID: 100% unique 8-digit, non-repeating, alphanumeric RFID code. This code is permanent; it cannot be changed or deleted. Battery-free transponder Programmable: 1-16 alphanumeric characters for programming (read/write) with customized study information. Can be programmed in the needle prior to implantation or after insertion in the animal. The programmed information can only be removed or changed with the UID Programming software. Biocompatible: Glass encapsulated (BIO GLASS 8625) Operating Frequency: 134.2 kHz Read Distance: 3 cm to 7 cm (depending on reader) Availability: Provided individually packaged in ETO sterile blister pack, or disposable injector. Availability: Provided in sharp, triple ground cannula (17G; 1.45mm O.D.) for easy insertion