Honeywell 2106B1209 Sensepoint ppm Flam. Sensor 3/4NPT offers users a high-quality, low-cost solution to their industrial gas monitoring needs. Installation in potentially explosive atmospheres is made by the use of a suitable Ex d or Ex e approved junction box. The industry standard outputs from Sensepoint are connected to either a choice of Honeywell Analytics’ controllers or 3rd party DCS/ PLC systems. Both flammable and toxic versions are certified to the latest ATEX/IECEx safety and performance standards.