Features:

• A round vented ball shape may quick and easy to detect
• Improved NDIR technology with new coating result in increased accuracy and stability.
• Long life 15 years in normal condition, environment with ABC on.
• Large LCD simultaneously displays Carbon Dioxide(CO2), Dioxide(O2),Temp, RH 
• Hi/Lo alarm threshold is selectable ,easy to reset default setting, audible warning high concentration
• Recall Max and Min CO2 readings from powered on
• Features auto power off and hold function
• Automatic Baseline Compensation (ABC),normally no maintenance is required
• Using Carbon Dioxide(CO2)  meter to optimize ventilation and make necessary energy-saving arrangement
• Completely follow the specification of ASHRAE and California IAQ standard
• Datalogging function 
• O2 measurement 
• Short time measurement powered by batteries, for long time logging , strongly recommend to use AC adaptor.
• Battery life (Battery) 25 hours approx.
• Made in Taiwan

Specifications:

• Memory Capacity : 32000 points
• Carbon Dioxide (CO2) Measure
  • Range: 0-9999ppm
  • Resolution: 1ppm
  • Accuracy: ±30ppm +5% of rdg, 0~5000ppm, others out of scale renge
• Dioxide (O2) Measure
  • Range : 0~30% ,
  • Accuracy: +/-1% . 
• Temperature
  • Range: -10°C~60°C
  • Resolution: 0.1°C/°F
  • Accuracy: ±0.6°C 
  • Dew Point : -20°C~59.9°C
• Relative Humidity (RH%) 
  • Range: 0.1~99.9%RH
  • Accuracy: ±3%RH(at25°C, 10~90%), others ±5%
• Auto power off in 15 minutes inactivity.
• Audible alarm warns reading exceeds threshold setting
• Pressure correction : 300~1100hpa/mbar
• Display : CO2, O2, Temp. RH% , Clock, Date
• Power : 
  • AAA×6pcs (Incl) 
  • AC/DC adaptor  
  • USB cable
• Operating Temp. RH : 0°C~50ºC(32°F~122ºF), 0~95%RH
• Storage Temp. RH : -40°C~70°C, 0~95%RH
• Meter size : 220 × 60.5 × 51.6mm (Incl. vented ball diameter)

Set Includes:

• 1 x Hand Held CO2,O2 Meter
• 1 x  Instruction Manual
• 6 x AAA batteries
• 1 x USB cable for Power and Data Transmission

Optional (not included in set):

Please inform us if you want any of the following optional items to be  included in your order

• AC/DC adaptor