GX-3R Pro
The GX-3R Pro is the world's smallest 5-gas detector, weighing only 120 grams and fitting in the palm of your hand (73 x 65 x 26 mm). It simultaneously monitors and displays 5 different gases. In addition to monitoring common gases for confined spaces, LEL, O2, CO and H2S, the GX-3R Pro has a fifth channel where you can add infrared or toxic gas sensors (hydrogen cyanide (HCN) and nitrogen dioxide (NO2) sensors are currently available for the GX-3R Pro).