The G460 multi-sensor atmospheric monitor from GfG Instrumentation has a concussion-proof boot along with dust- and water-resistant housing. It is automatically calibrated with one-button operation, a top-mounted display, interchangeable battery packs, highly configurable smart sensor design and standard data and event logging. Options include dual-range infrared combustible gas sensor, motorized pump operable in diffusion or sample draw mode, and up to seven channels of detection. 800/959-0329; www.goodforgas.com.