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Product Features
  • Fast and easy to operate: intuitive measurement menus and fast-response Smart-Touch display
  • Including O2 and CO sensor up to 4,000 ppm
  • Large 5-inch HD display – see all the system's measuring values at a glance
  • In the kit: testo 300 flue gas analyzer, including O2 and CO sensor up to 4,000 ppm, mains unit, basic flue gas probe, spare dirt filters, testo Bluetooth® printer, spare thermal paper, EasyHeat software, instrument case
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
With this kit, you will be equipped for the most important measurements involving heating systems: the testo 300 flue gas analyzer is supplied with O2 and CO sensor up to 4,000 ppm, basic flue gas probe, testo Bluetooth® printer, instrument case and practical accessories.

testo 300 Features:
  • Fast and easy to operate: intuitive measurement menus and fast-response Smart-Touch display
  • Including O2 and CO sensor up to 4,000 ppm
  • Large 5-inch HD display – see all the system's measuring values at a glance
  • Versions with up to 6 years' service life
Kit includes:
  • testo 300 flue gas analyzer with O2 and CO sensor up to 4,000 ppm (0633 3002 70)
  • USB mains unit, including cable (0554 1106)
  • Compact basic flue gas probe, 180 mm, Ø 6 mm, Tmax. 500°C; 1.5 m hose; including dirt filters and cone for fixing (0600 9740)
  • Spare dirt filters, compact probe; 10 off (0554 0040)
  • BLUETOOTH®/IRDA printer, including 1 roll of thermal paper and rechargeable battery (0554 0621)
  • Spare thermal paper for printer, indelible ink (0554 0568)
  • EasyHeat PC software (0554 3332)
  • Instrument bag (0516 3001)
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