testo 325 M, the successor of testo 325-1 which has proven itself thousands of times over, fulfills all the requirements for the adjustment of burners for heating fitters and is also used by gas fitters for servicing work on account of the diff. p measurement. TÜV for O2, CO2 and °F

• CO measurement range up to 4000 ppm
• Two switchable differential pressure measurement ranges
• Printout of readings incl. date and time
• Condensate trap integrated in analyzer
• Large backlit display
• Gas and differential pressure measurement
• Easy, user-friendly operation
• Easy-to-change sensors
• Approval for O2, CO2 and °F