Testo 327-1 Standard Kit with Gas Leak Detector
The Testo 327-1 Standard Kit with Gas Leak Detector gives engineers a reliable way to measure flue gas values and check for gas leaks during servicing work. It measures O2 and CO levels while also supporting draught and pressure checks. The compact design helps users work safely and quickly across many heating systems.
Built for natural gas, LPG, kerosene and light oil systems, the analyser delivers accurate readings during daily testing. The Testo 327-1 Standard Kit with Gas Leak Detector also includes a rechargeable battery with up to five hours of operation. In addition, the clear 4-line LCD display allows readings to stay visible in low light areas.
Reliable Gas Analysis
Fast response times help engineers complete servicing tasks with less delay. The analyser measures CO from 0 to 4000 ppm and supports temperature readings from -40 °C to 600 °C. Furthermore, the built-in condensate trap helps protect the unit during regular use.
Gas leak detection adds another level of safety when working around boilers and pipework. The detector identifies methane, propane, butane and hydrogen leaks with both visual and audible alarms. As a result, the Testo 327-1 Standard Kit with Gas Leak Detector supports safe working practices in domestic and commercial settings.
Designed for Daily Use
Easy menu navigation allows users to move through settings without confusion. The lightweight body and soft carry case improve portability between jobs. At the same time, the single probe connection speeds up setup before testing begins.
Long warranty coverage provides extra confidence for engineers and contractors. The analyser includes a 3-year sensor warranty and a 3-year analyser warranty. With support for multiple fuels and simple report printing, the Testo 327-1 Standard Kit with Gas Leak Detector is suitable for routine heating inspections and maintenance work.
Key Features
- Measures O2 and CO flue gas values
- Gas leak detector for methane and propane
- Supports butane and hydrogen leak detection
- Visual traffic light warning indication
- Audible alarm for gas leak alerts
- 4-line LCD display with display light
- Rechargeable 1200mA battery included
- Battery runtime of more than 5 hours
- Single probe plug for quick connection
- Built-in condensate trap protection
- Easy IR printout support
- Measures draught and differential pressure
- Supports ambient CO measurement
- Compatible with six fuel settings
- IP40 rated housing protection
- Soft carry case included
- 3-year analyser warranty included
- 3-year sensor warranty included
Technical Specifications
| Product name | Testo 327-1 Standard Kit with Gas Leak Detector |
| Manufacturer | Testo |
| Manufacturer part code | 300563 1327 |
| Measured gases | O2 and CO |
| Suitable fuels | Natural gas, LPG, kerosene, heavy oil, light oil and wood pellets |
| CO measurement range | 0 to 4000 ppm |
| CO accuracy | ±20 ppm from 0 to 400 ppm |
| CO resolution | 1 ppm |
| O2 measurement range | 0 to 21% |
| Temperature measurement range | -40 °C to 600 °C |
| Temperature accuracy | ±0.5 °C from 0 to 99.9 °C |
| Temperature resolution | 0.1 °C |
| Draught measurement range | ±40 hPa |
| Draught accuracy | ±0.02 hPa from -0.50 to +0.60 hPa |
| Display type | 4-line LCD display |
| Probe type | Type K |
| Probe length | 180 mm |
| Probe diameter | 6 mm |
| Operating temperature | -5 °C to +45 °C |
| Storage temperature | -20 °C to +50 °C |
| Battery type | Rechargeable 1200mA battery |
| Battery life | More than 5 hours |
| Ingress protection | IP40 |
| Weight | 500 g |
| Dimensions | 216 x 68 x 47 mm |
| Warranty | 3-year analyser warranty and 3-year sensor warranty |
Comparison Table
| Feature | 310 (2nd Gen) | 327-1 | 300+ |
| Sensors | O2, CO | O2, CO | O2, CO, NO optional |
| CO measurement range | 0 to 4000 ppm | 0 to 4000 ppm | 0 to 8000 ppm |
| NO measurement | No | No | Yes optional |
| Gas pressure testing | Yes | Yes | Yes |
| Flow and return temperature | No | Yes | Yes |
| Draught measurement | Separate measurement | Parallel measurement | Parallel measurement |
| Temperature range | 0 °C to 400 °C | -40 °C to 600 °C | -40 °C to 1200 °C |
| Printer compatible | Yes | Yes | Yes |
| Smart app connectivity | Yes | No | Yes |
| Touchscreen | No | No | Yes |
| Display | Graphic 7-line display | 4-line LCD display | 5 inch HD colour display |
| Sensor warranty | 2 years | 3 years | 3 years |
| Instrument warranty | 2 years | 2 years | 2 years |
Document Downloads
What’s Included
- Testo 327-1 Flue Gas Analyser
- Gas leak detector
- 180 mm flue gas probe
- Mains unit
- Soft carry case



