濕 度 記錄器  

• 經濟實用, 長時間記錄, 不需要紙張.

• 適用: 農業, 園藝, 花房, 環境, 工業, ..... 等

The HOBO RH is a general purpose, relative humidity logger that is both durable and reusable. Its sensor resists chemical corrosion by chlorine, acetone, pentane, xylene, formaldehyde, ammonia, hospital germicides and freon. Start the logger, readout, and plot the data with BoxCar® Pro (Windows) or BoxCar Pro for Macintosh software.

Features

Rated 5% to 95% RH non-condensing
Accuracy ±5% tolerance at room temperature
Two year battery life (user replaceable)
Nonvolatile EEPROM memory retains data even when the battery has been removed
Stores up to 1800 measurements
Safe operating temperature range of electronics is 0°C to 60°C, non-condensing
Small size: 1.8" tall x 1.9" wide x 0.6" thick and 0.9 oz.
Sampling intervals from 0.5 seconds to 9.0 hours
Blinking LED light confirms operation
Data exportable to spreadsheet programs (Lotus, Excel, etc.)

Calibration
The HOBO RH data loggers are individually calibrated at ten relative humidities ranging from less than 10% to greater than 90%. This calibration is stored in the logger. Due to the possibility of sensor drift it is recommended that the RH loggers be factory calibrated annually.

Temperature dependence
The HOBO RH sensor has a temperature dependence of 0.22% RH per degree C. A ten degree C excursion from room temperature will add about 2% RH error.

Sensor Specifications
Response time: 2 minutes
Repeatability: less than 2% (constant temperature)
Storage temperature: -40°C to +60°C
Temperature coefficient: 0.22% per °C