Onset Computer Corporation HOBO U14 LCD Logger - Temperature/Relative Humidity (RH) Data Logger - U14-001 Measures: Temperature, Relative Humidity Features: Qty $US 1-9 $230 10-99 $214 100+ $196 Contact Onset at 1-800-564-4377 Faster USB data download time Improved Temp/RH sensor resolution Real-time display of Temperature and RH Alarm display and output ensure timely notification of out-of-range conditions Two models to choose from - internal Temp/RH or external Temp or Temp/RH Optional Remote Alarm and Autodialer Optional protective case for wet or condensing environments Compatible with HOBOware and HOBOware Pro software for logger setup, graphing and analysis Description: HOBO U14 data loggers display, record, and provide alarm notifications of temperature and humidity conditions. Receive out-of-range alarms notifications with the optional Auto Dialer or Remote Audible Alarm. These loggers are well-suited for use in manufacturing, processing, and storage environments where reliable monitoring and documentation of temperature and relative humidity conditions is critical. Detailed Specifications: Environmental Operating temperature range -20Â°C to +50Â°C, (-4Â°F to +122Â°F) , 0 to 100% RH non-condensing Operating relative humidity range 0 to 95%, non-condensing, noncorrosive environment Logger Capabilities Capacity: Temp and RH: 21,500 measurements Temp Only: 43,000 measurements Software-selectable sampling intervals: 1 second up to 18 hours, recording times up to 1 year Programmable start time/date Recording modes: Stop when full Launch Modes: Immediate, Delayed Nonvolatile EEPROM memory retains data even if batteries fail LCD Size: 33 x 50.8 mm (1.3 x 2 inches) Displays temperature and relative humidity simultaneously Displays Â°C or Â°F (selectable within host software) Displays memory remaining and battery level Displays flashing ALERT for out-of-limits conditions (selectable within host software) and stops flashing on offload or return to normal range. Alarms High and low set points for both temperature and relative humidity Selectable delays for each set point. Alert conditions reset on offload or return to normal range. Selectable Contact Relay: Normally Closed or Normally Open Contact rating: 48VDC, 1A max Contact resistance: less than 1 Ohm Wire size range is 22AWG to 14AWG 0% Low Battery Range Communications Offloads data to PC or U-Shuttle via USB cable Readout full logger (64K) in less than 30 seconds Timekeeping Time accuracy: Â±1 minute per month at 20Â°C (68Â°F). Power 3 AAA Alkaline batteries, user-replaceable Size/Weight 125 x 92 x 31 mm (4.9 x 3.6 x 1.2 inches) 170 g (6.0 oz) with batteries Internal 12-Bit Temperature Sensor Measurement range: -20Â°C to 50Â°C (-4Â°F to 122Â°F) Accuracy: Â±0.21Â°C from 0Â° to 50Â°C (Â±0.38Â°F from 32Â° to 122Â°F); Â±0.13Â°C (0.24Â°F) typical Resolution: 0.02Â°C @ 25Â°C (0.04Â°F @ 77Â°F) Response time: 15 minutes (to 90% in airflow of 1 m/sec) Temperature Accuracy Drift: Negligible Internal 12-Bit Relative Humidity Sensor User replaceable Measurement range: 0-100% RH, -20 to 50Â°C (-4 to 122Â°F) Accuracy: Â±2.5% from 10% to 90% RH (typical), to a maximum of Â±3.5% including hysteresis Resolution: 0.03Â°C RH @ 25Â°C (0.05Â° at 77Â°F) Response time to 90%: 2 minutes (to 90% in airflow of 1 m/sec) Accuracy Drift: <2% over 5 years typical Hysteresis: 1% typical External Sensors For External Sensor Specifications, see the sensor's user manual. Battery Life The batteries will last one year in typical conditions (logging intervals of â‰¥ 1 minute with weekly offloads and average temperatures greater than 10Â°C or 50Â°F). Frequent offloads and/or extreme temperatures will reduce battery life. At temperatures below freezing (0Â°C or 32Â°F), batteries will typically require replacement every six months. In these conditions the battery level bar graph should be checked regularly.
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