The ToxiRAE Pro is the world’s first wireless personal monitor for toxic gases and oxygen deficiency / enrichment. Boasting a selection of over 20 intelligentinterchangeable sensors, the ToxiRAE Pro can detect a broad range of gases - from carbon monoxide, hydrogen sulfide, andoxygen to ammonia, chlorine, and phosphene. The ToxiRAE Pro’s plug-and-play intelligent sensors store calibration data, so if you need to monitor one gas one day and another gas the next, swapping the sensors in your ToxiRAE Pro is all it takes. Name: ToxiRAE Pro Certification: Custom Union Base Unit with Sensor: Carbon Monoxide (CO) extended-range sensor (0-2,000 ppm, 10 ppm res.) Datalogging: Continuous datalogging capability (3-month @ 1-minute intervals; user-configurable) Wireless Capability: Wireless, 868 MHz (built-in 868 MHz wireless modem) Kits: Monitor with standard in-the-box accessories