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The Testo 300+ Advanced Kit is the same analyser as the Standard Kit, with two practical accessories already in the box. Two NTC clamp probes attach to pipes between 6mm and 35mm diameter with a fixed 1.4m cable, fitted to the flow and return pipes to measure heating system performance alongside the flue gas reading — one of the most common combined checks needed on a boiler service. A pressure connection kit, with two silicone hoses and an adapter, allows gas pressure testing using the same analyser, without a separate manometer.
Buying these as part of the kit is more cost-effective than purchasing the Standard Kit and adding wireless Testo Smart Probes separately, if wired probes suit the way you work. The analyser itself carries the same 5-year O₂ and CO sensor life as the Standard Kit, an 8,000ppm CO range with hydrogen compensation and automatic pump shut-off, and 20% hydrogen blend readiness.
The 5.0" HD touchscreen allows multiple readings to be viewed at once, displayed as graphs, or zoomed to prioritise key values. Bluetooth and WLAN connectivity still allows up to four Testo Smart Probes to be connected for additional parallel measurements if needed, alongside the wired clamp probes included in this kit. It's EN50379-1 and EN50379-3 compliant, and BS 7967 compatible.
Including the pipe clamp probes and pressure connection kit from the outset covers the most common combined checks on a boiler service — flow/return temperature and gas pressure alongside flue gas analysis — without needing to source wireless Smart Probes separately. The same 5-year sensor life and 8,000ppm hydrogen-compensated CO range carry over from the Standard Kit, and Bluetooth connectivity still leaves room to add up to four Smart Probes later if requirements grow beyond wired measurement.
Order the Testo 300+ Flue Gas Analyser Advanced Kit online today.
| Brand | Testo |
|---|---|
| Part Number | 0564 3004 13 |
| Product Type | Flue Gas Analyser – Advanced Kit |
| Oxygen (O2) | 0 – 21 Vol.% |
| Carbon Monoxide (CO) | 0 – 8,000ppm, H2 Compensated, Automatic Pump Shut-Off |
| Ambient CO | 0 – 2,000ppm (Internal Probe) |
| Draught | -9.99 to +40hPa |
| Pressure | -100 to +200hPa |
| Temperature | -40°C to +1200°C |
| Efficiency | 0 – 120% |
| Flue Gas Loss | 0 – 99.9% |
| CO₂ | Digital Calculation to CO₂ Maximum |
| Pipe Clamp Probes | 2 x NTC, Ø 6–35mm, 1.4m Fixed Cable |
| Pressure Connection Kit | 2 Silicone Hoses (Ø 6mm, Ø 4mm), Instrument Adapter |
| Standards | EN50379-1, EN50379-3, BS 7967 Compatible |
| Hydrogen Ready | 20% H2 Blend Ready |
| Display | 5.0" HD Touchscreen, 1280 x 720 Pixels, IPS |
| Connectivity | Bluetooth and WLAN – Up to 4 Smart Probes |
| Wireless Range | Up to 100m (No Obstructions) |
| Memory | 1 Million Measuring Values |
| Sensor Life | Up to 5 Years (O2 and CO) |
| Battery Life | Up to 10 Hours |
| Protection Class | IP40 |
| Operating Temperature | -5°C to +45°C |
| Storage Temperature | -20°C to +50°C |
| Humidity Range | 15–90% RH, Non-Condensing |
| Dimensions | 244 x 98 x 59mm |
| Weight | Approximately 800g |
| System Requirements | iOS 11.0+ / Android 6.0+ / Bluetooth 4.0 |
| Warranty | 5 Years |
