Wearable, easy multi-gas detection that's always on. No charging, no battery or sensor replacements, no hassle. Simpler, low cost of ownership guaranteed by the Honeywell commitment to quality, and backed by a full ecosystem of supporting technologies. When you clip on the BW Clip4 you know - it's on. Standard package contents: Detector complete with sensors, stainless steel alligator clip and concussion-proof housing, calibration/test cap and hose, and quick start guide.