Measuring oxygen from 0 to 21% by volume and CO up to 40,000 ppm with H2 compensation, this combustion analyzer kit calculates efficiency and flue gas loss and pairs with a smartphone app over Bluetooth. Moreover, this kit includes a modular flue gas probe, a Bluetooth printer, spare particle filters, a carrying case, and adapters, making it ideal for HVAC/R professionals in their daily work.
Measuring oxygen from 0 to 21% by volume and CO up to 40,000 ppm with H2 compensation, this combustion analyzer kit calculates efficiency and flue gas loss and pairs with a smartphone app over Bluetooth. Moreover, this kit includes a modular flue gas probe, a Bluetooth printer, spare particle filters, a carrying case, and adapters, making it ideal for HVAC/R professionals in their daily work.
The Testo 330 supports HVAC/R professionals with maximum impact in increasingly complex working environments. With rising demands, diverse system types and growing time pressure, efficient and reliable measurement solutions are more important than ever. By combining intuitive operation with connected systems, the Testo 330 helps simplify daily tasks and deliver consistent results.
With the Testo Smart App, measurements can be controlled, documented and reported directly on site – including remote control, second screen functionality and fast, professional reporting. With Testo Smart Connect, all measurement data is centrally managed in the cloud, connecting measurements, jobs and devices in one system and providing full transparency and easy access across teams and locations.
The Testo 330 combines advanced measurement performance with intuitive workflows for faster setup and reliable operation. Equipped with sensors developed by Testo, it ensures low-maintenance use over time.
With an extended CO range up to 40,000 ppm and integrated dilution protection, it delivers stable results at high CO levels. Automatic zeroing ensures accurate results from the start, while the 5.5" (13.97 cm) touchscreen provides a clear view at a glance and streamlined workflows guide users step by step.
This combination of performance and usability reduces effort, minimizes errors and enables faster workflows and more confident decisions. Long battery life and fast USB-C charging ensure uninterrupted operation throughout the working day, minimizing downtime and keeping workflows moving.
Features
Applications
| Sensors | O2 sensor: yes CO sensor: 40,000 ppm H2 compensation (CO sensor): yes NO sensor: yes Zeroing in flue gas: yes Testo sensors: yes |
| O2 | Measuring range: 0 to 21 vol.% Accuracy: ±0.2 vol.% Resolution: 0.1 vol.% |
| CO | Measuring range: 0 to 10,000 ppm: With H2 compensation 0 to 40,000 ppm: With active dilution Accuracy: ±10 ppm or ±10% of m.v.: 0 to 200 ppm ±20 ppm or ±5% of m.v.: 201 to 2000 ppm ±10% of m.v.: 2001 to 10,000 ppm ±100 ppm or ±10% of m.v.: With active dilution Resolution: 1 ppm |
| NO | Measuring range: 0 to 3000 ppm Accuracy: ±5 ppm: 0 to 100 ppm ±5% of m.v.: 101 to 2000 ppm ±10% of m.v.: 2001 to 3000 ppm Resolution: 1 ppm |
| Efficiency (η) | Measuring range: 0 to 120% Resolution: 0.1% |
| Flue Gas Loss | Measuring range: 0 to 99.9% Resolution: 0.1% |
| CO2 (Calculated from O2) | Display range: 0 to CO2 maximum Accuracy: ±0.2 vol.% Resolution: 0.1 vol.% |
| Draft | Measuring range: -0.29 to 1.18 inHg (-9.8 to 40 hPa) Accuracy: ±0.0001 inHg (±0.34 Pa): 0 to 0.0029 inHg (0 to 9.8 Pa) ±0.00014 inHg (±0.47 Pa): 0.002 to 0.089 inHg (6.8 to 301 Pa) ±1.5% of m.v.: 0.089 to 1.181 inHg (3 to 40 hPa) Resolution: 0.00002 inHg (0.07 Pa): 0 to 0.0029 inHg (0 to 9.8 Pa) 0.0029 inHg (9.8 Pa): remaining range |
| 4 Pa Measurement | Measuring range: -0.0148 to 0.0148 inHg (-50 to 50 Pa) Accuracy: ±0.00009 inHg (±0.3 Pa): Below 0.003 inHg (10 Pa) ±3% of m.v.: remaining range Resolution: 0.00003 inHg (0.1 Pa) |
| Pressure | Measuring range: -3 to 6 inHg (-101.6 to 203.2 hPa) Accuracy: ±0.0147 inHg (±0.5 hPa): 0 to 1.5 inHg (0 to 50.8 hPa) ±1% of m.v.: 1.48 to 3 inHg (50.1 to 101.6 hPa) ±1.5% of m.v.: 3 to 6 inHg (101.6 to 203.2 hPa) Resolution: 0.0002 inHg (0.68 Pa) |
| Temperature (Instrument) | Measuring range: -40 to 2192°F (-40 to 1200°C) Accuracy: ±0.9°F (±0.5°C): 0 to 212°F (-17.8 to 100°C) ±0.5% of m.v.: remaining range Resolution: 0.18°F (0.1°C): -40 to 1,831.82°F (-40 to 999.9°C) 1.8°F (1°C): remaining range |
| Ambient CO | Internal/flue gas probe: 0 to 2000 ppm Accuracy: ±10 ppm: 0 to 100 ppm ±10% of m.v.: 101 to 2000 ppm Resolution: 1 ppm External with CO probe: 0 to 500 ppm Accuracy: ±3 ppm: 0 to 29 ppm ±10% of m.v.: 30 to 500 ppm Resolution: 1 ppm |
| Display | 5.5" (13.97 cm) IPS touchscreen, 1268 × 702 pixels |
| Memory | ≤1,000,000 readings |
| Wireless Connectivity | Wireless range: Up to 328' (100 m) with no obstructions Wireless probe connection: 4 Bluetooth® probes connectable: Smart Probes (°F, delta P), CO + CO2 probes |
| System Requirements | iOS ≥17 / Android ≥14; Bluetooth ≥4.2 |
| Power | Power supply: Rechargeable battery, USB mains unit Rechargeable battery life: 10 hours Quick charge (charge time / operating time): 20 min / ~60 min at 77°F (25°C) |
| Environmental Conditions | Operating temperature: 23 to 113°F (-5 to 45°C) Storage temperature: -4 to 122°F (-20 to 50°C) Charging temperature: 0 to 95°F (-17.8 to 35°C) Humidity application range: 15 to 90% RH (non-condensing) |
| Protection Class | IP40 |
| Dimensions | 9 x 4 x 2" (22.86 x 10.16 x 5.08 cm), including probe connection (approximately) |
| Weight | Analyzer: 1.5 lbs (0.68 kg) approximately Kit: 12 lbs (5.4 kg) |
Click on a category to view a selection of compatible accessories with the Testo 330 Combustion Analyzer Kit with printer, O2, 0 to 40,000 ppm CO/H2, NO.
| Sensors | O2 sensor: yes CO sensor: 40,000 ppm H2 compensation (CO sensor): yes NO sensor: yes Zeroing in flue gas: yes Testo sensors: yes |
| O2 | Measuring range: 0 to 21 vol.% Accuracy: ±0.2 vol.% Resolution: 0.1 vol.% |
| CO | Measuring range: 0 to 10,000 ppm: With H2 compensation 0 to 40,000 ppm: With active dilution Accuracy: ±10 ppm or ±10% of m.v.: 0 to 200 ppm ±20 ppm or ±5% of m.v.: 201 to 2000 ppm ±10% of m.v.: 2001 to 10,000 ppm ±100 ppm or ±10% of m.v.: With active dilution Resolution: 1 ppm |
| NO | Measuring range: 0 to 3000 ppm Accuracy: ±5 ppm: 0 to 100 ppm ±5% of m.v.: 101 to 2000 ppm ±10% of m.v.: 2001 to 3000 ppm Resolution: 1 ppm |
| Efficiency (η) | Measuring range: 0 to 120% Resolution: 0.1% |
| Flue Gas Loss | Measuring range: 0 to 99.9% Resolution: 0.1% |
| CO2 (Calculated from O2) | Display range: 0 to CO2 maximum Accuracy: ±0.2 vol.% Resolution: 0.1 vol.% |
| Draft | Measuring range: -0.29 to 1.18 inHg (-9.8 to 40 hPa) Accuracy: ±0.0001 inHg (±0.34 Pa): 0 to 0.0029 inHg (0 to 9.8 Pa) ±0.00014 inHg (±0.47 Pa): 0.002 to 0.089 inHg (6.8 to 301 Pa) ±1.5% of m.v.: 0.089 to 1.181 inHg (3 to 40 hPa) Resolution: 0.00002 inHg (0.07 Pa): 0 to 0.0029 inHg (0 to 9.8 Pa) 0.0029 inHg (9.8 Pa): remaining range |
| 4 Pa Measurement | Measuring range: -0.0148 to 0.0148 inHg (-50 to 50 Pa) Accuracy: ±0.00009 inHg (±0.3 Pa): Below 0.003 inHg (10 Pa) ±3% of m.v.: remaining range Resolution: 0.00003 inHg (0.1 Pa) |
| Pressure | Measuring range: -3 to 6 inHg (-101.6 to 203.2 hPa) Accuracy: ±0.0147 inHg (±0.5 hPa): 0 to 1.5 inHg (0 to 50.8 hPa) ±1% of m.v.: 1.48 to 3 inHg (50.1 to 101.6 hPa) ±1.5% of m.v.: 3 to 6 inHg (101.6 to 203.2 hPa) Resolution: 0.0002 inHg (0.68 Pa) |
| Temperature (Instrument) | Measuring range: -40 to 2192°F (-40 to 1200°C) Accuracy: ±0.9°F (±0.5°C): 0 to 212°F (-17.8 to 100°C) ±0.5% of m.v.: remaining range Resolution: 0.18°F (0.1°C): -40 to 1,831.82°F (-40 to 999.9°C) 1.8°F (1°C): remaining range |
| Ambient CO | Internal/flue gas probe: 0 to 2000 ppm Accuracy: ±10 ppm: 0 to 100 ppm ±10% of m.v.: 101 to 2000 ppm Resolution: 1 ppm External with CO probe: 0 to 500 ppm Accuracy: ±3 ppm: 0 to 29 ppm ±10% of m.v.: 30 to 500 ppm Resolution: 1 ppm |
| Display | 5.5" (13.97 cm) IPS touchscreen, 1268 × 702 pixels |
| Memory | ≤1,000,000 readings |
| Wireless Connectivity | Wireless range: Up to 328' (100 m) with no obstructions Wireless probe connection: 4 Bluetooth® probes connectable: Smart Probes (°F, delta P), CO + CO2 probes |
| System Requirements | iOS ≥17 / Android ≥14; Bluetooth ≥4.2 |
| Power | Power supply: Rechargeable battery, USB mains unit Rechargeable battery life: 10 hours Quick charge (charge time / operating time): 20 min / ~60 min at 77°F (25°C) |
| Environmental Conditions | Operating temperature: 23 to 113°F (-5 to 45°C) Storage temperature: -4 to 122°F (-20 to 50°C) Charging temperature: 0 to 95°F (-17.8 to 35°C) Humidity application range: 15 to 90% RH (non-condensing) |
| Protection Class | IP40 |
| Dimensions | 9 x 4 x 2" (22.86 x 10.16 x 5.08 cm), including probe connection (approximately) |
| Weight | Analyzer: 1.5 lbs (0.68 kg) approximately Kit: 12 lbs (5.4 kg) |
Click on a category to view a selection of compatible accessories with the Testo 330 Combustion Analyzer Kit with printer, O2, 0 to 40,000 ppm CO/H2, NO.
