Palm size percent oxygen analyzer measures O2 concentrations from 0 to 100%. Features an advanced galvanic oxygen sensor, a 32 month operating life with no maintenance required, 13,000 hours of battery use and wide variety of optional accessories that make it an ideal cost effective choice for  


  • ambient air monitoring
  • O2 deficiency in confined spaces
  • checking O2 level in breathing air tanks
  • confirm O2 level in inert atmosphere before welding
Accuracy: < +2% of FS range under constant conditions Analysis: 0%-100% oxygen
 Application:  Verify ambient O2 levels of confined spaces  Calibration: 100% oxygen or air after 8 hrs of use
Compensation: Temperature Connections: 1×16 mm thread (see options below)
 Controls:  Soft touch keypad for ON/OFF and Calibration  Dimensions:  2.72” x 4.1” x 1.35”; weight 7 oz. (196 grams)
 Display:  3 digit LCD 1.1” x .625”; resolution 0.1% O2  Flow Sensitivity:  None between 0.2 to 10 liters per minute
 Humidity:  Non-condensing 0-95% RH  Linearity:  +/-2 % of full scale
 Pressure:  Inlet – ambient or regulated; vent – atmospheric  Power:  (2) 1.5V AA alkaline batteries; 13,000 hrs of use
 Response Time:  90% of final FS reading in 10 seconds  Sensitivity:  < 0.5% of FS range
 Sensor:  AII-11-75-PO2  Sensor Life:  32 months in air at 25ºC and 1 atmosphere
 Storage Temp.:  -20º to 60ºC (-4ºF to 140ºF) on intermittent basis  Temp. Range:  5º to 45ºC (41ºF to 113ºF)
 Warm-up Time:  None  Warranty:  12 months analyzer; 12 months sensor


Optional Equipment
A-3388 Adapter, Dome to sensor
A-3609 Adapter, 1/8 tube to dome
A-3676 Adapter, 1/8 tube to sensor
A-3657 Dovetail bracket
HRWR-1075 Dovetail clamp pole 
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