The ION Science FirstCheck 6000 Plus Hazmat Kit includes a PID with ppb capability and LEL, CO, O2 and H2S gas detection in a handheld survey unit. It allows detection of TICs that have thresholds below the detection capabilities of conventional PIDs and can detect some WMD chemical agents. Kit includes calibration equipment, a 5m extension probe, and more.Ion Science (Americas), Waterbury, VT. AIHCE BOOTH 224