Origin:Germany

Instrument Overview:

Testo 535, CO2 measuring instrument, used for measuring indoor air quality. Indoor air turbidity can lead to fatigue, distraction, and illness, mainly due to high CO2 levels (above 1000ppm)

Characteristics:

Long term measurement based on maximum and mean calculations

Long term stable 2-channel infrared sensor

● High precision, high efficiency

No need for repeated calibration

Performance parameters:

Measurement range: 0-9999 ppm

Accuracy: ± (50 ppm CO2 ± 2% of mv) (0...+5000 ppm CO2)

± (100 ppm CO2 ± 3% of mv) (+5001...+9999 ppm CO2)

Resolution: 1 ppm CO2 (0...+9999 ppm CO2)

Measurement medium: air

Display: LCD, 2 rows

Shell: ABS

Operating temperature: 0...+50 ° C

Storage temperature: -20...+70 ° C

Battery type: 9V block battery

Battery life: 6 hours

Size: 190x57x42 mm

Weight: 300 g

Automatic shutdown: 10 minutes