Different measurement medium and the product that index chooses are different, those who include a product is practical wait with economy, according to us old applied experience recommends as follows: Online measure a part: Warm an air conditioning humidity and dew point measure: The DO9861T of Italian DeltaOHM, applicable environment: Warm reach high temperature is high wet the humidity below is measured. Advantage: Belt show, the air humidity that tall wet environment issues measurable high temperature. Monitor refrigerant model the compression that desiccator outputs air dew point: The FA300-1 of German CS, applicable environment: Compress air dew point to measure, advantage: Sensor is filmy capacitance type, reaction is sharp, automatic calibration, output: 4 ～ 20mA, have relay and show reach call the police option is optional, span: - 50 ℃ of 10 ～ Td. Highest pressure can amount to 350bar, defend level: IP67, sexual price is compared tall. The compression that the adsorption that monitor desiccator outputs air dew point: The FA300-2 of German CS, applicable environment: Compress air dew point to measure, advantage: Sensor is filmy capacitance type, reaction is sharp, automatic calibration, output: 4 ～ 20mA, have relay and show reach call the police option is optional, span: - 20 ℃ of 80 ～ Td. Highest pressure can amount to 350bar, defend level: IP67, the function is all ready. Additionally the Easidew of Er of British close analyse is measured accurate, price moderate, defend level: IP65, it is the choice with right user. Humidity of industrial procedure gas measures: The Easidew of Er of British close analyse, applicable environment: Dew point of all sorts of industrial procedure gas are measured, advantage: Sensor is the AL2O3 that joined pottery and porcelain, measure span wide, polarity turns over photograph protection, solid and reliable, reaction is fast and accurate, economy is durable. Explosion proof dew point measures: The Transmet IS of Er of British close analyse, applicable environment: The dangerous area of any air or aeriform dew point, for instance the dew point of coolant of hydrogen of stator of natural gas, power station detects and all sorts of inert gase. Advantage: Tall stability, repeatability and long-term reliability, dew point limits wide, precision is tall (1 ℃ of ± Td) . Pure gas dew point measures: The Pura of Er of British close analyse. Applicable environment: The humidity of the gas with pure height is measured. Advantage: High stability and repeatability, precision is tall (1 ℃ of ± Td) , measure range wide (- 120 ～ - 40 ℃ Td) . The dew point with accurate and reliable height measures: The Optidew of Er of British close analyse. Advantage: This those who use is cold mirror technique, without drift, precision is tall, economy is practical. Portable watch part: Compress air dew point to measure: The DP300 of German CS. Advantage: Reaction is sharp, economy is practical. Industrial procedure humidity measures: The Easidew Portable of Er of British close analyse. Advantage: Measure range wide, the function is all ready (had taken screen to go out with join interface) . Explosion proof dew point measures: The Cermax IS of Er of British close analyse. Advantage: Tall repeatability of reaction fast precision is good, take data storage function, the function is powerful. CNC MillingCNC Machining