Dräger X-AM 2500 gas detector EX/O2/CO/H2S (LC) without pump and battery - MED/SOLASTemperature: -20 to +50 °C (-4 to 122°F)Pressure: 700 to 1,300 mbar (20.7 to 38.4 inch Hg)Relative humidity:10 to 95 % r.h.Protection class: IP67Alarms: Visual: 360°, Audible: Multi-tone > 90 dB at 30 cm, vibrationOperating times: > 12 h with alkaline and NiMH, > 13 h with NiMH HC, > 250 h w/o Ex sensor with alkaline batteriesCharging times: < 4 hData logger: Retrievable using an infrared interface > 1000 h with 4 gases at a recording interval of 1 value per minutePump operation: Maximum hose length 45 m; 147 ft.Approvals: ATEX, CSA (Canada & USA), MED, MSHA