Features:

• Highly accurate with fast response time
• Measuring range from 1 to 1000 ppm with a 1 ppm resolution
• ±5% or ±10 ppm basic accuracy (whichever is greater)
• Max, Data hold and Auto shut off
• Utilizes a stabilized electrochemical gas specific fast response sensor
• Audible alarm starts at 35ppm
• Backlight LCD display
• Dimensions: 6.3 x 2.2 x 1.6”/160 x 56 x 40mm
• Weight: 6.35 oz/180g
• Complete with 9V battery and carrying case