Use it everyday in the most difficult operations. Saves time - The testo 300 processes data quickly and easily. All calculations and tables are electronically stored for immediate data display. Get it wrong and you are either polluting the environment or wasting precious fuel and heat. Modern heating equipment has a narrow efficiency range.
Proper setup requires fine tuning to run economically.
Accurate information must be provided to pass stringent inspection requirements. Testo 300 has 14 Stoichometric tables for all popular fuels. Information is automatically displayed. No waiting around for chemical reactions. Easy to use.