Patent ID: 7202788

Claim:
An electronic seal comprising: a head comprising a first side and a second side facing away from the first side, a through-hole extending from the first side through the second side of the head, the head including a first engaging member, the head further including a first end and a second end; a strap including a first end extending from the first end of the head and a second end, the strap including a second engaging member; a tag embedded in the second end of the head; and a signal-transmitting line embedded in the tag and the strap and extending from the tag through a perimeter wall delimiting the through-hole of the head and surrounding the through-hole of the head and then extending from the first end of the strap through the second end of the strap; the strap being extendable through the through-hole of the head along a tightening direction, forming a tightening space, with the first engaging member engaging with the second engaging member to prevent the strap from moving in an unfastening direction reverse to the tightening direction.