• WHO PQS pre-qualified E006/070.
  • Up to 16,000 recordings – enough for the longest trip.
  • Automatically generates a PDF report and an Excel data file – no special download software required.
  • Display showing temperature and alarm status of up to 3 alarms.

Designed as a Single-use, cost effective & reliable temperature recorder, the LogTag® USRID-16W measures and stores real time temperature readings over a measurement range of -30°C to +60°C (-22°F to +140°F).

The LogTag® USRID-16W is pre-qualified for World Health Organisation PQS E006 Standards. (E006/070).

The USRID-16W combines all the features of an advanced temperature recorder with a 16,000 log memory with a shelf life of up to two years (in standard hibernation mode) and a 20 day operating life in a robust and inexpensive package.

The USRID-16W plugs directly into the computer USB for easy data download. A fully detailed PDF report is generated with the option to download the data using the freely available LogTag® Analyzer software for a more detailed analysis.

The display is designed to show ‘at a glance’ if there has been a temperature excursion.


Product ModelUSRID-16W1.
Sensor Measurement Range-30°C to +60°C (-22°F to +140°F).
Operating Temperature Range-30°C to +60°C (-22°F to +140°F).
Storage Temperature Range0°C to +40°C (32°F to +104°F) with device inactivated.
Rated Temperature Reading Accuracy Better than ±0.5°C for -5°C to +30°C (23°F to +86°F).
Better than ±0.8°C or better for -30°C to +60°C (-22°F to +140°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 Temperature Reading Resolution Better than 0.1 °C or 0.2 °F between -20 °C to +55 °C.
Please see the Rated Native Resolution chart below.
LogTag Analyzer® currently displays to one decimal place of °C or °F. The native resolution is what is stored in the LogTag®.
Sensor Reaction TimeTypically less than 7 minutes (T90) in moving air (1m/s).
Recording Capacity16,129 temperature readings.
Sampling IntervalConfigurable from 30 seconds to 18 hours.
Logging Start OptionsPush button start or specific date & time. Optional start delay of 1 minute to 72 hours.
Logging Stop OptionsPush Button Stop.
Stop after a defined number of readings.
Stop when memory filled once.
Alarms2 upper and 1 lower alarm.
Download TimeTypically with full memory (16.129 readings) in less than 20 seconds from time of insertion to availability of PDF report.
Typically less than 10 seconds from time of insertion to availability of LTD file in LogTag® Analyzer (if configured).
EnvironmentalIngress rating: IP64 with USB cap fitted.
Shock and Vibration: Unit shall pass a relevant level of shock and vibration based on the requirements of the Indicator specification E006/ TR07.3.
Environmental resistance: Labels and plastics shall be resistant to a range of chemicals and UV, including rubbing alcohol and petrol fuel.
Power SourceCR2032 3V LiMnO2 Battery (Non-Replaceable).
Battery Life Minimum storage life of 18 months before ‘start’.
Monitoring period: 20 days.
Minimum accessibility (display) period of 6 months after ‘stopped’.
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 InterfaceUSB 2.0, A-type plug.
SoftwarePDF Reader, LogTag® Analyzer 2.5 or higher.
Size93mm(H) x 54.5mm(W) x 8.6mm(T) including protective weUSB cap.
Case MaterialPolycarbonate.

Compliance and Certifications
FDA CFR21 Part 11 FCC EMC Directive CE EMC Directives Conforms to RoHS Pre-qualified WHO PQS E006/021

WHO PQS pre-qualified models under E006 devices: PQS Code E006/070


WHO Type 1 alarm configuration for freeze sensitive vaccines:

  • DTP, DT
  • TT, Td
  • HepB, IPV, HPV
  • Liquid Hib and combination vaccines
  • Pneumo (other than Prevenar)
USRID-16W1 Backing Card (English)


WHO Type 2 alarm configuration suitable for the international shipment of:

  • BCG, lyophilized Hib, OPV
  • Measles, MR, MMR, Rabies
  • Meningitis (polysaccharide)
  • Yellow fever vaccines
  • Rotavirus (other than rotateq)
USRID-16W2 Backing Card (English)