Get exclusive volume discounts, bulk pricing updates, and new product alerts delivered directly to your inbox.
By subscribing, you agree to our Terms of Service and Privacy Policy.
Direct access to our certified experts
Get exclusive volume discounts, bulk pricing updates, and new product alerts delivered directly to your inbox.
By subscribing, you agree to our Terms of Service and Privacy Policy.
Direct access to our certified experts

Flue gas CO (with H₂-compensation)
Measuring range: 0 to 8000 ppm
Accuracy:
±10 ppm or ±10 % of mv (0 to 200 ppm)
±20 ppm or ±5 % of mv (201 to 2000 ppm)
±10 % of mv (2001 to 8000 ppm)
Resolution: 1 ppm
Reaction time t₉₀: < 40 s
Flue gas COlow
Measuring range: 0 to 500 ppm
Accuracy:
±2 ppm (0 to 39.9 ppm)
±5 % of mv (40 to 500 ppm)
Resolution: 0.1 ppm
Reaction time t₉₀: < 40 s
Flue gas Draught
Measuring range: -9.99 to +40 hPa
Accuracy
±0.02 hPa or ±5 % of mv (-0.50 to +0.60 hPa)
±0.03 hPa (+0.61 to +3.00 hPa)
±1.5 % of mv (+3.01 to +40.00 hPa)
Resolution: 0.01 hPa with fine draught option 0.001 hPa
Temperature
Measuring range: -40 to +1200 °C
Accuracy:
±0.5 °C (0 to +100.0 °C)
±0.5 % of mv (Remaining Range)
Resolution:
0.1 °C (-40 to +999.9 °C)
1 °C (> +1000 °C)
Flue gas degree of effectivity, Eta (calculated)
Measuring range: 0 to 120 %
Resolution: 0.1 %
Flue gas loss (calculated)
Measuring range: 0 to 99.9 %
Resolution: 0.1 %
Flue gas CO₂ calculation (calculated from O₂)
Measuring range: Display range 0 to CO₂ max
Accuracy: ±0.2 Vol.%
Resolution: 0.1 Vol.%
Pressure measurement
Measuring range: 0 to +300 hPa
Accuracy:
±0.5 hPa (0.0 to 50.0 hPa)
±1 % of mv (50.1 to 100.0 hPa)
±1.5 % of mv (Remaining Range)
Resolution: 0.1 hPa with fine draught option 0.01 hPa
Flue gas CO (without H₂-compensation)
Measuring range: 0 to 4000 ppm
Accuracy
±20 ppm (0 to 400 ppm)
±5 % of mv (401 to 2000 ppm)
±10 % of mv (2001 to 4000 ppm)
Resolution: 1 ppm
Ambient CO
Measuring range: 0 to 500 ppm
Accuracy:
±5 ppm (0 to 100 ppm)
±5 % of mv (> 100 ppm)
Resolution: 1 ppm
with CO probe 0632 3331
Ambient CO₂
Measuring range:
0 to 1 Vol.%
0 to 10000 ppm
Accuracy:
±75 ppm or ±3 % of mv (0 to 5000 ppm)
±150 ppm or ±5 % of mv (5001 to 10000 ppm)
with ambient CO₂ probe 0632 1240
Gas leak measurement for combustible gases (via gas leak detection probe)
Measuring range: 0 to 10000 ppm CH₄ / C₃H₈; Display range
Accuracy: Signal optical display (LED) audible signal via buzzer
Reaction time t₉₀: < 2 s
with gas leak detection probe 0632 3330
General technical data
Dimensions: 240 x 85 x 65 mm
Operating temperature: -5 to +45 °C
Display size: 240 x 320 pixels
Display function: Colour graphic display
Power supply: Battery: 3.7 V / 2,400 mAh; Mains unit: 6 V / 1.2 A
Maximum memory: 500 Measurement values
Storage temperature: -20 to +50 °C
Weight: 573 g
Set with flue gas analyzer testo 320 (with O2, CO measurement cell), compact 300 mm flue gas probe, Spare dirt filters, adpater, transport case and mains unit