Walk-through metal detectors are typically installed at indoor checkpoints to detect illicit material and contraband. Outdoor walk-through metal detectors are designed for temporary outdoor use and are widely used at special event checkpoints, such as concerts or sporting events.
A stun gun is a portable safety device you can use to protect yourself by "stunning" or "jolting" a would-be assailant. Stun guns disable a person by delivering a temporary, high-voltage electric shock.
Automated keylocks that has facial recognition, fingerprint, swipe card,manual key, remote as a means of operation and it can also be operated using a smart phone connected through WIFI
