Good IDS

While parusing a corner of the Internet I finally found an IDS product that makes sense.

Smart Security Fences with YAEL-18 YAEL-18 is a Taut Wire Intrusion Detection System specifically intended for integration with any type of concertina, or barbed tape security fences.

The system is designed to provide an alarm signal at the control center when an attempt is made to cross the concertina security fences by compressing, lifting, pulling the concertina, or by cutting through the barrier.

At least this type of IDS fits in to all the metaphors about security cameras, locks on doors, alarms, etc.