Image
  1. Home
  2. testo 327

testo 327-1 - Flue Gas Analyser (advanced kit)

0563 3203 81
Image
  • Advanced Kit - including analyser, probe, testo IR Printer, 2x temperature clamp probes, case, and power supply.
  • Comprehensive Analysis - Performs all major boiler measurements.
  • Durable Design - Robust housing with shock-proof elastomeric protection skin.
  • Versatile Fuel Compatibility - Suitable for natural gas, oil, kerosene, LPG, and wood pellet systems.
  • Pressure Testing Features - Includes tightness and let-by test routines for added functionality (requires pressure connection adaptor).
  • The testo 327 Advanced Kit provides reliable measurement of key combustion values, including O₂, CO, and CO₂. Featuring a bright 4-line LED display, intuitive menu navigation, and durable design, it ensures accurate flue gas analysis for domestic boilers. The Advanced Kit also includes an IR printer for instant on-site documentation and 2x wired temperature probes for measuring flow, return, and differential temperatures. Tightness and let-by tests can be performed with an optional pressure adaptor.

    Overview

    Accurate flue gas analysis is crucial for ensuring heating systems operate safely, efficiently, and in line with industry standards. Whether commissioning boilers, performing routine maintenance, or diagnosing combustion issues, reliable measurements are vital for effective service.

    testo 327 Advanced Kit – Reliable Analysis with On-Site Printing and Enhanced Measurements

    The testo 327 Flue Gas Analyser Advanced Kit combines the trusted performance of the testo 327 with additional tools for enhanced functionality and on-site documentation. Designed for domestic boiler servicing and combustion analysis, this complete kit provides everything heating engineers need for accurate and efficient testing.

    The analyser offers precise measurements of oxygen (O₂) and carbon monoxide (CO), while also calculating key values such as carbon dioxide (CO₂), combustion efficiency, and flue draught. The bright 4-line LED display ensures clear visibility of readings, even in low-light conditions, while intuitive menu navigation simplifies operation.

    Instant Results, Expanded Capabilities

    The Advanced Kit includes a testo IR printer, allowing engineers to print test results instantly on-site for professional documentation.

    To further improve diagnostic capabilities, the kit also features 2x wired temperature clamp probes, enabling accurate flow/return temperature and differential temperature measurements — ideal for ensuring heating systems are operating efficiently.

    Fast, Efficient Testing with Practical Features

    The testo 327 achieves stable readings within 30 seconds, minimising downtime and improving productivity. An integrated condensate trap protects the device from moisture damage, while the automatic pump shut-off feature safeguards the CO sensor from saturation.

    For added versatility, the testo 327 is compatible with an optional pressure testing adaptor, enabling engineers to conduct tightness and let-by tests directly from the analyser.

    Complete Kit for Heating Engineers

    The testo 327 Advanced Kit comes equipped with a flue gas probe, temperature clamp probes, an IR printer, and a protective soft carry case for secure storage and transport.

    Independently tested to EN 50379 and certified to BS 7967, the testo 327 offers accurate, compliant results for confident diagnostics.

    With its combination of reliable analysis, on-site reporting, and enhanced measurement capabilities, the testo 327 Advanced Kit is the ideal solution for heating engineers seeking an all-in-one tool for comprehensive system analysis.

    testo 327 Flue Gas Analyser, rechargeable battery and calibration protocol, Flue Gas Probe (180mm x 6mm diameter), Pressure hose connection kit, Differential temperature kit (2 x pipe clamp probes), testo infrared printer, soft carry case with shoulder strap, AC power supply.

    General technical data

    Weight
    (with probe) Approx. 700 g
    Dimensions
    201 x 83 x 44 mm
    Operating temperature
    -5 to +45 °C
    Display type
    LCD (Liquid Crystal Display)
    Display function
    Backlit 2-line display
    Power supply
    Battery: 1500 mAh, mains unit 5V/1A
    Storage temperature
    -20 to +50 °C

    Temperature - TC Type K (NiCr-Ni)

    Measuring range
    -40.00 to +600.00 °C
    Accuracy
    ±0.50 °C (0 to 99.90 °C)
    ±0.50 °C (100 to 600 °C)
    Resolution
    0.1 °C
    Reaction time
    < 50 s
    Temperature (ambient temperature)

    Flue gas O₂

    Measuring range
    0 to 21 Vol.%
    Accuracy
    ±0.2 Vol.%
    Resolution
    0.1 Vol.%
    Reaction time t₉₀
    30 s

    • (pdf, 12.24 MB)
    Contact Us
    Testo Ltd
    Newman Lane
    GU34 2URAlton
    HampshireUnited Kingdom
    01420 544433

    Opening hours

    Monday-Thursday: 8:30am - 17:00pmFriday: 8:30am - 16:00pm
    Image
    Blog

    Visit our blog

    © 2026