Testo 300+ Flue Gas Analyser Ultra Smart Kit
The Testo 300+ Flue Gas Analyser Ultra Smart Kit gives heating engineers a fast and reliable way to test domestic heating systems. It delivers clear readings for oxygen and carbon monoxide while also supporting optional nitric oxide checks. In addition, the large touchscreen makes live measurements simple to view during service work. The strong battery life also helps engineers work for longer without interruption.
Built for demanding daily use, the Testo 300+ Flue Gas Analyser Ultra Smart Kit combines smart controls with dependable sensor performance. Bluetooth support allows up to four probes to connect at once, so users can collect more data in less time. As a result, testing becomes quicker and more efficient across different gas appliances and heating systems.
Smart Connectivity and Reporting
Wireless connectivity gives engineers greater flexibility when working in tight spaces or busy plant rooms. The integrated WLAN and Bluetooth functions support fast data transfer and remote monitoring through the Testo Smart App. Users can also create reports directly from the analyser, helping speed up paperwork after testing is complete.
A bright 5-inch touchscreen provides easy navigation and clear viewing even during long jobs. Multiple readings can appear on screen together, which improves monitoring during combustion analysis and pressure checks. Furthermore, onboard calculations help users assess combustion ratio, efficiency and flue gas loss without needing separate tools.
Built for Daily Heating Work
The Testo 300+ Flue Gas Analyser Ultra Smart Kit is supplied with a wide range of accessories for complete heating analysis work. Pipe thermometers, a Bluetooth manometer and a gas leak detector are all included in the kit. This allows engineers to carry out temperature, pressure and leak testing with one practical solution.
Designed for long-term performance, the analyser uses durable sensors with a five-year lifespan and a scratch-resistant display with protective film. The compact carry case also helps keep equipment protected during transport between jobs. Because of its reliable performance and easy operation, the Testo 300+ Flue Gas Analyser Ultra Smart Kit suits both servicing and fault-finding applications.
Key Features
- Measures oxygen and carbon monoxide levels
- Carbon monoxide sensor reads up to 8,000 ppm
- Supports optional nitric oxide measurements
- Connects with up to four probes at once
- Bluetooth communication for wireless testing
- Compatible with the Testo Smart App
- Integrated WLAN for fast report transfer
- Large 5-inch touchscreen for clear viewing
- Displays several live readings together
- Performs combustion efficiency calculations
- Supports flue gas loss calculations onboard
- Includes pressure and draught testing functions
- Scratch-resistant display with protective film
- Battery lasts for up to 10 hours of use
- Supplied with a protective soft carry case
- Five-year sensor lifespan for long-term use
Technical Specifications
| Product name | Testo 300+ Flue Gas Analyser Ultra Smart Kit |
| Manufacturer | Testo |
| Manufacturer part code | Not provided |
| O2 measurement range | 0 to 21 vol % |
| CO measurement range | 0 to 8,000 ppm |
| Ambient CO measurement range | 0 to 2,000 ppm |
| Temperature measurement range | -40 °C to +1200 °C |
| Pressure measurement range | -100 to +200 mBar |
| Draught measurement range | -9.99 to +40 mBar |
| Sensor type | O2 and H2 compensated CO sensors |
| Display size | 5-inch touchscreen |
| Display resolution | 1280 x 720 pixels |
| Connectivity | Bluetooth and WLAN |
| Remote access | Compatible with Testo Smart App |
| Probe connection capacity | Up to four probes simultaneously |
| Onboard calculations | CO2, combustion ratio, efficiency and flue gas loss |
| Battery life | Up to 10 hours |
| Protection | Scratch-resistant touchscreen with protective film |
| Case type | Soft case style instrument bag |
| Application | Domestic heating system flue gas analysis |
| Warranty | 5 years |
Comparison Table
| Feature | Testo 300+ Ultra Smart Kit |
| Oxygen measurement | 0 to 21 vol % |
| CO measurement capability | Up to 8,000 ppm |
| Wireless connectivity | Bluetooth and WLAN |
| Display type | 5-inch HD touchscreen |
| Pressure testing | Integrated |
| Draught measurement | Integrated |
| Remote monitoring | Testo Smart App support |
| Probe support | Up to four probes |
| Battery runtime | Up to 10 hours |
| Warranty period | 5 years |
What’s Included
- Testo 300+ Flue Gas Analyser with O2 and CO sensor
- USB mains unit and cable
- Testo Bluetooth Connector
- Compact basic flue gas probe with 180 mm probe and 1.5 m hose
- Two Testo 115i Bluetooth pipe thermometers
- Testo 510i Bluetooth manometer
- Gas leak detector
- Pressure connection set
- Soft case style instrument bag
Meta Description
Testo 300+ Flue Gas Analyser Ultra Smart Kit with Bluetooth probes, WLAN reporting, pressure testing and 5-year warranty.










Reviews
There are no reviews yet.