Gastec Passive Dosi Tubes (for TWA Measurement)

Gastec Passive Dosi Tubes (for TWA Measurement)

Passive dosi tubes are used to measure time-weighted average (TWA) gas concentrations over longer periods. Dosi tubes use the principle of the natural diffusion of gas.

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Features

• On-site measurements can be performed easily by anybody, anytime and anywhere, in a short time
• Easy-to-check direct reading possible due to the calibrated scale directly printed on the tube
• An extensive measuring range can be obtained by adjusting the sampling volume
• In order to assure high precision, each production lot is tested and calibrated independently, Each detector tube has its own quality control number printed on the tube
• Long shelf-life with excellent long-term stability