The Riken Keiki GX-8000 sample drawing gas detector consolidates several of the older cl***ic models, such as the GX-111, NP-237H, GX-7, GX-85N, OX-62B, OX-1, OX-415, OX-226, GP-226, etc… into one unified and improved specification. Its versatile design makes it simple to configure for 1-5 gases, and the sensor compartment makes servicing sensors and filters quick and straightforward. The compact, light weight design makes it comfortable to carry using the neck/shoulder strap, and the optional waist strap allows for hands-free use. The unit is easy to operate single-handedly, and the powerful built-in pump has a fast 750ml / minute suction rate. A 30m length hose takes only (approx.) 30 seconds to sample a potentially hazardous or toxic gas.