Disclosed is an accessory assembly (100, 200, 300) for coupling a unit to an animal band. In one embodiment, the accessory assembly (100, 200, 300) comprises a support frame (102, 202, 302), the support frame (102, 202, 302) including a locking gap (120) positioned on one end of the support frame (102, 202, 302), a latch protrusion (114) positioned on the other end of the support frame (102, 202, 302), a proximally positioned receiving aperture (340A), and a plurality of strap retention structures (106A, 206A, 306A) configured for coupling to at least one strap (104, 114, 204A, 204B, 304A, 304B), the straps (204A, 304A) configured for coupling to an animal band. The accessory assembly (100, 200, 300) further comprises a coupling latch (110, 210, 310) comprising an actuator (112, 212, 312) positioned on one end of the coupling latch (110, 210, 310) and a locking mechanism (118, 218, 318) positioned on the other end of the coupling latch (110, 210, 310) opposite the actuator (112, 212, 312) wherein the coupling
