UID Laboratory Animal Microchips offer a reliable, convenient and permanent method for positive identification of laboratory animals. When activated by a compatible reader, the passive, battery-free transponder provides a unique, non-repeating, alphanumeric code that allows accurate identification of individual animals in a group. UID microchips also come with additional on-board memory (16 characters) that enable read/write programming capabilities. This feature allows researchers to program the microchip with useful “human readable” data, such as study or project number, genotype or animal DOB. These small transponders are designed for non-surgical implantation in young mice, as well as in larger animal species. They are provided sterile in individual blister packs, and they come pre-assembled inside a triple ground cannula for easy insertion and convenient use. Microchip programming can be performed prior to implantation while in their sterile cannula using the UPS-60 Provisioning Station, or after implantation in the animal using the URH-1HP Handheld Reader or UBS-200 Base Station.