HID ProxKey III  keyfob tags programmed with Ademco (now Honeywell) propietary A14001 format. Price per pack of 10 keyfobs.

Please note the PTKEY10 recently changed from the now discontinued Prokey II (drop-shaped), to the new ProxKey III (round-shaped, see picture).  Old part number is 1346LSSMN-A1593, new part number is 1346LNSMN-A1593-HW.