3.3mm EM4102 PIT Bird Tag GREY. EM4102 transponder based PIT bird tag, 3.3mm internal diameter in GREY. These tags are rainproof but not waterproof rated for submersion usage such as on aquatic birds. The lifetime of the tags is 3 years during which time the failure rate will not exceed 3%. Made of Polypropylene.
Please note, the colour grey can vary and may appear darker than the picture shown on our website.