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0564 3300 02
testo 330 - Advanced flue gas analyzer with O₂ and CO sensors and Bluetooth printer
0564 3300 02
testo 330 - Advanced flue gas analyzer with O₂ and CO sensors and Bluetooth printer
Advanced flue gas analyzer for commissioning, service and diagnostics of heating systems, combining a 5.5" touchscreen, intuitive workflows and connected data management.
This flue gas analyzer comes with O₂ and CO sensors and is optimized for robust daily use in demanding HVAC/R environments
- Clear view at a glance – Large 5.5" touchscreen with real time data
- Streamlined workflows – App-like interface with step-by-step guidance for faster setup and reliable measurements
- testo Smart App integration – Remote control, second screen and fast reporting directly on site
- Centralized data management – Connecting measurements, jobs and devices in one system via testo Smart Connect
- High CO capability – CO range up to 10,000 ppm with integrated dilution protection and sensors developed by Testo
- Automatic zeroing – Accurate results – even in complex conditions
This flue gas analyzer is equipped with a Testo O₂ sensor and a high performance CO/H₂ sensor with an extended CO range up to 40,000 ppm when using active dilution. This makes it particularly suitable for commissioning, servicing and troubleshooting a wide variety of gas and oil-fired systems, including applications with higher CO concentrations.
With measurement ranges tailored to typical combustion applications and automatic zeroing, the instrument delivers stable and accurate readings for O₂, CO, draught, efficiency, flue gas loss and more – even under demanding conditions. Robust design (IP40), a proven sensor platform developed by Testo and TÜV-tested flue gas probes ensure long-term reliability.
Thanks to its integrated Bluetooth interface, the testo 330 connects seamlessly to the testo Smart App and to up to four wireless probes, enabling remote control, second screen operation and the integration of temperature, differential pressure, CO and CO₂ measurements. Measurement data is stored in the large internal memory and can be synchronized via testo Smart Connect for centralized data management across jobs, devices and teams.
A powerful rechargeable battery with fast USB-C charging provides up to 10 hours of operation, ensuring the analyzer is ready for a full working day.
O₂
O₂ | Measuring range 0 to 21 Vol.% |
|---|---|
Accuracy ±0.2 Vol.% ±1 Digit | |
Resolution 0.1 Vol.% | |
CO (with H₂ compensation, with active dilution)
CO (with H₂ compensation, with active dilution) | Measuring range 0 to 40000 ppm |
|---|---|
Accuracy ±100 ppm or ±10 ±1 Digit | |
Resolution 1 ppm | |
CO (without H₂ compensation, with active dilution)
CO (without H₂ compensation, with active dilution) | Accuracy ±200 ppm or ±20 % of mv ±1 Digit |
|---|---|
Resolution 1 ppm | |
Measuring range 0 to 20000 ppm | |
Flue Gas NO
Flue Gas NO | Measuring range 0 to 3000 ppm |
|---|---|
Accuracy ±5 ppm (0 to 100 ppm) ±1 Digit ±10 % of mv (2001 to 3000 ppm) ±1 Digit ±5 % of mv (101 to 2000 ppm) ±1 Digit | |
Resolution 1 ppm | |
| *(optional) | |
Flue Gas Draft
Flue Gas Draft | Measuring range -4.00 to +16 InH₂O / -9.99 to +40 hPa |
|---|---|
Accuracy ±0.01 InH₂O (+0.04 to +1.20 InH₂O) ±1 Digit / ±0.02 hPa (+0.10 to +3.00 hPa) ±1 Digit ±1.5 % of mv (+1.20 to +16 InH₂O) ±1 Digit / ±1.5 % of mv (+3.01 to +40 hPa) ±1 Digit ±0.002 InH₂O (0 to 0.0 InH₂O) ±1 Digit / ±0.005 hPa (0 to 0.1 hPa) ±1 Digit | |
Resolution 0.00 InH₂O (Remaining Range) / 0.01 hPa (Remaining Range) 0.000 InH₂O (0 to 0.0 InH₂O) / 0.001 hPa (0 to 0.1 hPa) | |
Temperature
Temperature | Measuring range -40° to 2192 °F / -40 to +1200 °C |
|---|---|
Accuracy ±0.5 % of mv (Remaining Range) ±1 Digit ±0.9 °F (32° to 212.0 °F) / ±0.5 °C (0.0 to +100.0 °C) ±1 Digit | |
Resolution 1.0 °F (Remaining Range n2{+#0} {%S2}) / 1 °C (Remaining Range) 0.1 °F (-40° to 1831.8 °F) / 0.1 °C (-40 to +999.9 °C) | |
Efficiency testing (η)
Efficiency testing (η) | Measuring range 0 to 120 % |
|---|---|
Resolution 0.1 % | |
Flue gas loss
Flue gas loss | Measuring range 0 to 99.9 % |
|---|---|
Resolution 0.1 % | |
CO₂ (calculated from O₂)
CO₂ (calculated from O₂) | Measuring range 0 to CO₂ max (Display range) |
|---|---|
Accuracy ±0.2 Vol.% ±1 Digit | |
Resolution 0.1 Vol.% | |
Pressure measurement
Pressure measurement | Measuring range -40 to +80 InH₂O / -100 to +200 hPa |
|---|---|
Accuracy ±1.5 % of mv (+100.1 to +200 ) ±1 Digit ±0.2 InH₂O (0.0 to +20.0 InH₂O) ±1 Digit / ±0.5 hPa (0.0 to +50.0 hPa) ±1 Digit ±1 % of mv (+20.0 to +40.0 InH₂O) ±1 Digit / ±1 % of mv (+50.1 to +100.0 hPa) ±1 Digit | |
Resolution 0.00 InH₂O / 0.01 hPa | |
CO (without H₂ compensation)
CO (without H₂ compensation) | Measuring range 0 to 5000 ppm |
|---|---|
Accuracy ±10 % of mv (2001 to 5000 ppm) ±1 Digit ±5 % of mv (401 to 2000 ppm) ±1 Digit ±20 ppm (0 to 400 ppm) ±1 Digit | |
Resolution 1 ppm | |
Ambient CO
Ambient CO | Measuring range 0 to 2000 ppm (internal/flue gas probe) 0 to 500 ppm (external with CO probe) |
|---|---|
Accuracy ±10 ppm (30 to (500 ppm) ±1 Digit (external with CO probe) ±10 % of mv (101 to (2000 ppm) ±1 Digit (internal/flue gas probe) ±10 ppm (0 to 100 ppm) ±1 Digit (internal/flue gas probe) ±3 ppm (0 to (29 ppm) ±1 Digit (external with CO probe) | |
Resolution 1 ppm (external with CO probe) 1 ppm (internal/flue gas probe) | |
Differential Pressure 4 Pa measurement - Piezoresistive
Differential Pressure 4 Pa measurement - Piezoresistive | Measuring range -50 to +0 InH₂O / -50 to +50 Pa |
|---|---|
Accuracy ±0.0 InH₂O (< 0 InH₂O) ±1 Digit / ±0.3 Pa (< 10 Pa) ±1 Digit ±3.0 % of mv (Remaining Range) ±1 Digit | |
Resolution 0.0 InH₂O / 0.1 Pa | |
General technical data
General technical data | Operating humidity 15 to +90 %rH (non-condensing) |
|---|---|
Weight approximately 24 oz. / approximately 685 g | |
Dimensions approximately 9 x 4 x 2 in. (LxWxH) (incl. probe connection) / approximately 227 x 102 x 47 mm (LxWxH) (incl. probe connection) | |
Operating temperature 23° to 113 °F / -5 to +45 °C | |
Protection class IP40 | |
Connectable probes 4 x digital Bluetooth® probe or testo Smart Probe; connectable: Smart Probes (°C, Delta P), CO + CO₂ probes | |
System requirements requires iOS 17 or newer; requires Android 14 or newer | |
Battery life 10 h | |
Display type 5.5" IPS touch display, HD 1280 x 720 pixels | |
Power supply Rechargeable battery, USB mains unit | |
Guarantee 48 + 12 months (with app registration) | |
Operating time ~60 min (25 °C) | |
Maximum ≤1,000,000 readings | |
Interface Bluetooth® 4.2 | |
Radio range Up to 100 m (with no obstructions) | |
Battery charging option Quick charge | |
Battery charging time 20 min | |
Storage temperature -4° to 122 °F / -20 to +50 °C | |
Charging temperature 0 to +95 °F / 0 to +35 °C | |
General technical data
General technical data | Weight 136.86 oz. / 3880 g |
|---|---|
Dimensions 20.5 x 15.7 x 5.1 in. (LxWxH) / 520 x 400 x 130 mm (LxWxH) | |
Housing Plastic | |
Product colour Black | |
General technical data
General technical data | Diameter probe shaft 0.315 in. / 8 mm |
|---|---|
Cable length 7.218 ft. / 2.2 m | |
Length probe shaft 7.087 in. / 180 mm | |
Product colour Black | |
Temperature maximum 932 °F / 500 °C | |
Diameter 0.2 in. / 6 mm | |
Weight 18.48 oz. / 524 g | |
General technical data
General technical data | Weight 0.42 oz. / 12 g |
|---|---|
Dimensions height: 0.11 in., ø: 1.17 in. / height: 2.9 mm, ø: 29.7 mm | |
Product colour white | |
- Advanced flue gas analyzer testo 330 (device model 0633 3300 01) with O₂ and CO sensor
- Instrument case, height 130 mm (order no. 0516 3300)
- Modular flue gas probe, 180 mm, Ø 8 mm (order no. 0600 9760 01)
- Spare particle filter, 10 off (order no. 0554 3385)
- Plug-in mains adapter (order no. 0554 113)
- Mobile Bluetooth® printer (order no. 0554 0622)
