... on the mainframe, also can set the parameters in the computer.2. Large-screen LCD display, guiding ... time and some parameters (like temperature, moisture, Light, CO2, etc.). If you choose automatic mode, we should ... (1-5 hours), the equipment can be set in accordance with good spacing and record data automatically. ... Stability: <30ppm/yrPrice: need negotiation Handheld Portable CO2 gas detector