Dwyer 485B系列 数字式温湿度计

 model485b digital thermo-hygrometer isa versatile, compact, hand-held instrument for measuring percentageof relative humidity and temperature in °f or °c. dew point and wetbulb temperature is derived from relative humidity and temperaturemeasurements and displayed on the lcd. hold key freezes the currenttemperature and relative humdity readings for situations wherereadings fluctuate. store up to 99 readings with the nonvolatilememory function – ideal for technicians needing to take multiplereadings for later analysis.
service: humidity,temperature, wet bulb and dew point temperature detection in cleanair. 
temperature limits: 
process: -40 to 176°f (-40 to 80°c); 
ambient: 5 to 125°f (-15 to 51°c). 
range relative humidity: 0to (non-condensing). 
accuracy relative humidity: ±2%fs over 10 to 90% @ 77°f (25°c). 
range temperature: -20to 140°f (-28 to 60°c). 
accuracy temperature: ±0.9°f@ 72°f (±0.3°c @ 25°c). 
display: 4.5digit lcd. 
resolution: 0.1%,0.1 °f/°c. 
probe length: 8"(203 mm) insertion. 
power re: 9v alkaline battery, installed, non-functional, userreplaceable. 
weight: 16oz (454 g). 
agency approvals: ce.