Product spotlight: Security

Bollards Thwart Terrorist Attacks

Stainless steel, vertical lift TT210-SS bollards, seen here at the U.S. State Dept. headquarters, destroy front suspension system, steering linkage, engine crank case, and portions of the drive train of 15,000-lb. non-armored or non-tracked vehicles hitting

at speed of 62 m.p.h. Stop 30,000-lb. vehicles with impact speed of 44 m.p.h. Raise and lower bollards in guard positon by remote-- controlled hydraulic power unit in as little as 1 sec. Bollards remain fully operational even after being hit by a 5-ton vehicle going 65 m.p.h. Lights improve bollard visibility at night.

Delta Scientific Corp., Valencia, Calif.

CIRCLE 350 ON READER CARD

Secure Public Areas With Walk-- Through Weapons Detector

Columnar Checkgate Model 9000-C digital metal detection system detects ferrous and nonferrous metal weapons. Checks multiple fields for fast processing. Operation instructions appear on self-contained, backlit LCD readout. Memory-retained operating parameters can be adjusted via keypad access code. Unit is made of gray, marble-- granite finish. Runs on 110-v. a.c. atl amp.