• 4 WHO PQS Pre-qualified models available.
  • At-a-glance summary with ‘OK’/’Reject’ alarm status.
  • Review statistical data on device for up to 20 days prior.
  • Download of statistical data via optional interface.

The LogTag® TIC20 WHO is a versatile, wide range, multi-trip Temperature Indicator, featuring high resolution temperature readings over a measurement range of -40°C to +85°C (-40°F to +185°F). Enclosed in a robust and durable polycarbonate case, the TIC20 WHO features a real time clock, which provides date/time stamps for each temperature reading.

The LogTag® TIC20 WHO is pre-qualified for World Health Organisation PQS E006 Standards. (E006/021).

Using the LogTag® Interface and the freely available companion software LogTag Analyzer, the LogTag® is easily set-up for recording conditions including delayed start, sampling interval, number of readings, continuous or fixed number of readings and configuration of conditions to activate the ALERT indicator. Readings are downloaded using LogTag® Analyzer, which provides facilities for charting, zooming, listing data statistics and allows exporting the data to other applications such as Excel.

The LogTag® TIC20 WHO complies with the relevant international standards for temperature monitoring devices, such as FCC, CE, C-TICK, and RoHS. This not only demonstrates the quality of the LogTag® TIC20 WHO, but underlines its suitability for temperature monitoring applications where accuracy and consistency is required.


Product ModelTIC20-W1.
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 Range-30°C to +65°C (-22°F to +149°F).
Rated Temperature Reading Accuracy Better than ±0.5°C for -10°C to +40°C.
Better than ±1.0°C for -30°C to -10°C.
Better than ±1.0°C for +40°C to +60°C.
Actual performance is typically much better than the rated values.
Accuracy figures can be improved by recalibration.
Rated Temperature Reading Resolution Less than 0.1°C for -30°C to +60°C.
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 CapacityMinimum & maximum temperature for each of the 20 days.
1st activation of each alarm for each day including trigger time and duration of each excursion.
Please note the TIC20 WHO does not store each individual temperature reading taken.
Sampling IntervalFactory set to 6 minute interval (i.e. 0.1hour).
Logging Start OptionsPush button start or specific date & time.
Start DelayFactory set to 60 minutes
Recording IndicationAlarms are displayed on a custom LCD.
Power SourceCR2032 3V LiMnO2 Battery (Fixed).
Battery LifeMinimum 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).
Size73mm(H) x 54.5mm(W) x 8.6mm(T).
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 E006/021

WHO Type 1

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)
TIC20-W1 Backing Card (English)

WHO Type 2

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)
TIC20-W2 Backing Card (English)

WHO Type Prevenar

WHO Type Prevenar alarm configuration for:

  • Prevenar 7
  • Prevenar 13
TIC20-WP Backing Card (English)

WHO Type RotaTeq®

WHO Type RotaTeq® alarm configuration suitable for the international shipment of:

  • RotaTeq®
TIC20-WR Backing Card (English)