• Record and display Temperature and Humidity readings simultaneously.
  • Up to 16,000 sets of humidity and temperature recordings.
  • Automatically generates a PDF report without special software.
  • Audible alarm & red LED signals a temperature alarm.

The LogTag® UHADO-16 Humidity and Temperature Logger measures and stores up to 16,000 sets of high resolution humidity and temperature readings over a measurement range of 0 to 100%RH and -30°C to +70°C (-22°F to +158°F).

The display shows current Temperature & Humidity readings, Alarm status and Recording status.

The UHADO-16 is fitted with three contact pins so it can be used with the LogTag® LTI-USB, LTI-HID and LTI-WiFi Interface Cradles.

When the UHADO-16 is connected to a computer using the integrated USB plug, a detailed PDF report of the recorded humidity and temperature data can be automatically generated without the need for extra accessories and proprietary software.

For more detailed data analysis, the UHADO-16 also creates an encrypted data file compatible with readily available LogTag Analyzer® operating software and LogTag Online®.


Product ModelUHADO-16.
Sensor Measurement Range-30°C to +70°C (-22°F to +158°F).
Operating Temperature Range-30°C to +70°C (-22°F to +158°F).
Storage Temperature Range0°C to +40°C (+32°F to +104°F).
Humidity Measurement Range0% RH to 100% RH, with limitations.
Humidity Operating Range0% RH to 100% RH (non-condensing), with limitations.
Humidity Storage Range0-65%, non-condensing.
Rated Temperature Reading Accuracy Better than ±0.45°C (±0.8°F) for +0°C to +50°C (+32°F to +122°F), typically ±0.3°C (0.6°F).
Better than ±0.8°C (±1.4°F) for +50°C to +70°C (+122°F to +158°F), typically ±0.5°C (0.9°F).
Better than ±0.95°C (±1.7°F) for -40°C to +0°C (-40°F to +32°F), typically ±0.6°C (1.1°F).
Actual performance is typically much better than the rated values. Please see the Rated Absolute Accuracy chart below
Accuracy figures can be improved by recalibration.
Rated Humidity Reading Accuracy Better than ±3%RH for 20%RH to 80%RH, typically ±2%RH.
Better than ±5%RH for 0%RH to 20%RH, typically ±4%RH.
Better than ±5%RH for 80%RH to 100%RH, typically ±4%RH.
Actual performance is typically much better than the rated values. Please see the Rated Absolute Accuracy chart below.
Accuracy figures can be improved by recalibration.
Humidity ResolutionBetter than 0.1% RH.
Temperature ResolutionBetter than 0.1°C or 0.1°F
Recording Capacity16,128 pairs of humidity and temperature readings. 112 days @ 10min logging, 168 days @ 15min logging.
Statistics memory for displaying maximum and minimum Temperature and RH values on the LCD.
Day summary statistics memory (for display on LCD): up to 30 days of Max/Min/duration and alarm trigger statistics.
Sampling IntervalConfigurable from 30 seconds to several hours.
Logging Start OptionsPush button start or specific date & time.
Recording IndicationState indicator “REC”.
Alarms4 temperature and 2 humidity alarms.
Download TimeTypically less than 10 seconds for full memory, depending on computer or readout device used.
EnvironmentalIP61 (when hung or mounted vertically).
Power SourceCR2032 3V LiMnO2 Battery (Replaceable).
Battery Life1 year storage, 1 year of normal use (based on 15 minute logging, download data monthly).
Real Time Clock Built-in real time clock.
Rated accuracy ±25ppm @ 25°C (equivalent to 2.5 seconds/day).
Rated temperature coefficient is -0.034 ±0.006ppm/°C (I.e typically +/- 0.00294 seconds/day/°C).
Connection InterfaceInterface Cradle or USB 2.0 / Micro USB plug (cable not included).
SoftwareLogTag® Analyzer & LogTag® Online.
Size93mm(H) x 54.5mm(W) x 8.6mm(T) including protective USB cap.
Case MaterialPolycarbonate.

Compliance and Certifications
FDA CFR21 Part 11 FCC EMC Directive CE EMC Directives Conforms to RoHS

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