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Product Features
  • Six applications, one device: flue gas, flue draft, pressure, gas leak detection, CO ambient air and pressure difference measurements
  • Integrated flue gas sensors with temperature sensor included; ultra-fine pressure sensors and a wide range of other sensors, ports and probes optional
  • Rugged, high-quality design, high-resolution, multi-color display, self-explanatory menu guide
  • TÜV-tested according to EN 50379, Parts 1-3 and 1st BImSchV
Delivery options

At Cadmus Products we aim to deliver orders efficiently and at highly competitive rates. 

  • We can ship consignments of all shapes and sizes and hazardous content across the UK and worldwide. Most of our orders are sent via DHL, however sometimes we may use other couriers.
  • If you are purchasing a laboratory product online you can find out the price of shipping checkout. If you are obtaining a quote for a product, then we will email you
    with our best shipping prices along with your quote.
  • Please see our delivery page for full information
The testo 320 features all the essential functions for carrying out flue gas analysis on domestic heating systems, including flue draught, pressure measurements, and differential temperature measurement. The flue gas analyser is easy to use with its full colour graphic display featuring a user-friendly menu guidance. The analyser measures both O2 and CO (4,000ppm sensor fitted as standard) and can also display calculated parameters such as combustion ratio, CO2, etc. A range of optional probes also allow measurement of ambient CO and gas escape detection. The device can store up to 500 measurement reports to internal memory, and also features Bluetooth communication with Testo's free Combustion app is also possible (App only for Android devices)

testo 320 Features:
  • Clear operation via colour display
  • Covers 5 main domestic flue gas analyser tests
  • Flue gas, draught, tightness & let-by, ambient CO
  • Differential temperature and pressure with advanced kits
  • Pump shutdown to protect against high CO
  • Free app allows operation via smartphone with testo 320 analysers
Kit includes testo 320 Flue Gas Analyser with Bluetooth, rechargeable battery and calibration protocol, Flue Gas Probe (180mm x 6mm diameter), Soft carry case with shoulder strap, AC/USB power supply.
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