Primetherm offers model ds-1000 dewpoint meter. It is a low cost single channel on-line dewpoint meter having rapid response with an accuracy of â±2â°c dewpoint. It has got fully interchangeable sensor and also hosts some other features. Ds-1000 is dewpoint meter and is economically priced instrument package, designed for continuous analysis of air or gas and to monitor or control the refrigeration of desiccant dryers. An isolated 4-20 ma analog output can be used in either active or passive mode with a maximum output load of 1 kw [active].