The Honeywell BW™ Solo is extremely user-friendly with a lightweight profile and compact design, coupled with reliability and accuracy. Ideal for monitoring the most monitored gases, the next-generation 1-Series sensor is designed to continue to provide accuracy and reliability even in harsh and challenging environments. The 1-Series sensor offers a rapid diffusion square design and a height that is just a third of other sensors on the market. In a compact package, it is able to detect CO, H2S and O2, with more gas types on the way.