Testo 315-4

Use testo 315-4 to check the CO level in ambient air. Even low concentrations of the highly poisonous gas are detected.

Audible & optical alarm

Meas.range   : 0 to 100 ppm CO

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Testo 317-2

Highly practical gas leak detector for fast checks on gas pipe connections, with visual bar display.

Sensor self-test after switching on

Rising alarm tone with increasing gas concentration

Meas.range   : 0 to 20.000 ppm CH4

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Testo 440

CO2 measuring instrument

Measuring range

0 to 10 000 ppm CO2

5 to 95 %RH

0 to +50 °C

700 to 1100 hPa

For monitoring Indoor Air Quality, work place,schools

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