Single Gas Detector Detects Chlorine Sensor Range 0 to 50 ppm Housing Color Yellow Resolution 0.1 ppm Operating Temp Range -4 to 122 Degrees F -20 to 50 Degrees C Alarm Setting Low 0.5 ppm High 1 ppm Alarm Type Audible Visual and Vibrating Battery Type Replaceable 3V Battery Life 24 mo. Display LCD Interchangeable Sensors No Height 3-3/4 In. Width 1.1 In. Depth 2 In. Includes Sensor Stainless Steel Alligator Belt Clip And Test Cap and Hose Manual And Training CD