Kitagawa Gas Detector Tube #118SD, Benzene, 0.2 to 15 ppm (Box of 5) | Parkes Scientific
Portable C6H6 Benzene Gas Detector C6H6 Benzene Gas Alarm Monitor 0--100PPM | eBay
RKI GX-6000 for Benzene Multi-Gas 72-6AZX-C
Personal Benzene Gas Monitor, Cub TAC, for Accurate Detection of TACs
Sample Draw PID Benzene Detector. Portable 6 Gas Detector with Dual PID option. 300 VOC's available for monitoring volatile organic compounds. Long life, field replaceable sensor.