If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. Honeywell 2104B2131 Medium Range Receiver ATEX Source Product Overview and Industrial Role The Honeywell 2104B2131 Medium Range Receiver ATEX Source is a high-integrity open-path infrared gas detection receiver used in the Honeywell Searchline Excel system . It works in pair with a transmitter *Your Name: *Your Email: *Your Name: *Vdcode: Submit