OX-100X Handheld Oxygen Weld Monitor : Types and Sizes

Range: 0.00 - 25.0% oxygen concentration
Calibration: 20.9% (oxygen concentration in air)
Calibration Gas: Ambient Air
Sensor: Electrochemical fuel-cell
Resolution: 0.01% Oxygen
Accuracy: 0.00% - 4.99%
                Range: 2% of measurement range at STP
                5.0% - 25.0%
                Range: 0.5% of measurement range at STP
Display Resolution: 0.00% - 4.99% Two Decimal Places
                             5.0% - 25.0% One Decimal Place
Response: 90% in less than 10 seconds
Display: 0.4" / 11 mm LED
Warm-Up: Instantaneous
Battery: 4 “ AA” (included in Accessories Kit)

Sampling:

Timed Operation: 80 seconds
Sample Probe: Stainless Steel
Filters: Integral particulate and condensate filter
(SPOT) Mode: With OFF-SPOT-CAL/CONT. switch in SPOT
                      position, press SET button to start sample.
                      Display will hold for 30 seconds after sampling
                      before blanketing.
Continuous Operation Mode: With OFF-SPOT-CAL/CONT. switch in
                                           CAL/CONT. position pump and display will
                                           run continuously.

Sensor:

Type: Electrochemical fuel-cell
Life: 9 - 12 months
Recommended Calibration Period:  Weekly dependent upon use