Crowcon Gas-Pro MED Portable Gas Detector, 3-Gas, CH4 %LEL, O2, CO (2 Model In This Family). The monitor is fitted with an internal pump which is activated with the flow plate, allowing it to be worn in pumped or diffusion modes and enabling easy pre-entry testing. The Crowcon Gas Pro MED Personal Gas Detector offers Specific and Unique Pre-entry Check modes and it features automatic fail-safe flow plate recognition which also improves the ease of pre-entry testing. Optimised for ease of use, the Crowcon Gas Pro MED Personal Gas Detector delivers intuitive functionality, supports multiple languages, and provides bump and calibration reminders to ensure you are always working accurately and reliably. Furthermore, readings are indicated on the easy-to-read, top-mounted display. This, combined with a compact, rugged design and long battery life, makes the Crowcon Gas Pro MED Personal Gas Detector ideal for confined spaces. It is dust- and water-resistant (IP65/67) and its lithium-ion battery delivers over 14 hours of operating time from a 7.5-hour charge. The Crowcon Gas Pro MED Personal Gas Detector is a small, simple-to-use, professional-grade multi-gas monitor.