The cold weather option/upgrade allows the Model 202 and Model 205 Ozone Monitors to operate down to -20°C. This upgrade includes a lamp heater and replacement of the sampling pump with a low-temperature pump. These upgrades are required for operations below about 0°C because the lamp may not turn on at low temperatures, and the polymer diaphragm becomes too stiff and causes the pump ...
By 2B Technologies based in Boulder, COLORADO (USA).
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