LogTag Temperature Recorders
LogTag Temperature Recorders

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USB LogTag with Display and External Probe

LogTag Model: UTRED-16F

No Reader necessary.

If you need a logger with a probe and don’t want to buy a separate Reader, this is the model for you. Features an LCD temperature display.


A$180.00A$230.00 incl. GST

10-49 $162 $207
50-99 $153 $195
100+ $144 $184

Note: Bulk pricing will be applied in the shopping cart.

Temperature Display

See the current temperature at a glance with the clear LCD display.

Visual Alerts

If the Tag logs temperatures outside the safe range you have set, the display will show a cross, giving you an instant visual notification that there has been a problem.

Easy to use

The LogTag is so simple to set up and use that you'll be an expert in no time. We have a full LogTag training program on our site

Ideal for transporting vaccines

Velcro a UTRED-16F to the outside of your cooler with the probe running to a glycol vial inside the cooler.

You can see the temperature inside the cooler at a glance.

The glycol slows the reaction to temperature changes when the lid is opened, meaning your log accurately reflects the temperatures of the liquid vaccines in the cooler.


Managing your fixed battery

Note that this model has a non-replaceable battery. The battery should last two years with normal use (15 minutes log interval and monthly downloads).

However, if you don’t need continuous logging, the life of this logger can be greatly increased by hibernating it (turning it off) between uses. 

This makes it ideal for shipping. The process is:

  • Configure and start the logger
  • Log the trip
  • Download the log
  • Hibernate the logger until next use – this will prevent the battery between drained between uses.

External Probes for LogTags

ST100J External Probe for LogTag

40mm tip length, ⌀3.2mm

This is the probe that goes with the LeakProof Vial

ST100K – 65mm tip length, ⌀3.2mm

65mm tip length, ⌀3.2mm

ST100L – 90mm tip length, ⌀3.2mm

90mm tip length, ⌀3.2mm

ST100S – 30mm tip length, ⌀5mm

30mm tip length, ⌀5mm

ST100T – 140mm tip length, ⌀5mm

140mm tip length, ⌀5mm



Handled with 105mm tip length, ⌀5mm


ST100B – Untipped (bare sensor).

ST100B – Untipped

Bare sensor without stainless sheath ready for fitting to custom probe assembly.

Not rated for food contact or environmentally rated.


Product Model UTRED-16F (Fixed battery)
External Sensor Measurement Range -40°C to +99°C (-40°F to +210°F)
Operating Temperature Range -30°C to +60°C (-22°F to +140°F).
Storage Temperature Range 0°C to +40°C (32°F to +104°F).
Rated Temperature Reading Accuracy Better than 0.1°C (0.2°F) for -30°C to +60°C (-22°F to +140°F). Better than 0.2°C (0.4°F) for -40°C to -30°C (-40°F to -22°F). Better than 0.5°C (0.9°F) for +60°C to +99°C (+140°F to +210°F). LogTag Analyzer currently displays to one decimal place of °C or °F. The native resolution is what is stored in the LogTag.
Rated Temperature Reading Resolution Better than ±0.5°C (±0.9°F) for -20°C to +40°C (-4°F to +104°F), typically ±0.3°C (0.6°F). Better than ±0.8°C (±1.4°F) for -40°C to -20°C (-40°F to -4°F), typically ±0.5°C (0.9°F). Better than ±0.8°C (±1.4°F) for +40°C to +70°C (+104°F to +158°F), typically ±0.7°C (1.3°F). Better than ±1.2°C (±2.2°F) for +70°C to +99°C (+158°F to +210°F), typically ±1°C (1.8°F).
Recording Capacity 16,129 temperature readings. 112 days @ 10min logging, 168 days @ 15min logging. Statistics memory (for display on LCD): Max/Min values and alarm duration values.
Sampling Interval Configurable from 30 seconds to 18 hours
Logging Start Options Push button start or specific date & time. Optional start delay of up to 72 hours
Recording Indication “REC” symbol on LCD
Alarms Three configurable upper and three configurable lower alarms.
Download Time Typically with full memory (16,129 readings) in less than 30 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)
Environmental IP61 (when vertically mounted or hung with USB dust-cap in place).
Power Source CR2450 3V LiMnO2 (Non-replaceable battery).
Battery Life 1 year storage, 2 years 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).
Connction Interface Standard: 1.5m (4’11″). Extended: 3m (9’10″) (Recommended maximum).
Remote Sensor Cable Type PTFE (FDA food contact rated), coaxial.
Size 93mm(H) x 54.5mm(W) x 8.6mm(T).
Weight 39g (without External Probe).
Case Material Polycarbonate.
Compliance and Certifications FDA CFR21 Part 11 FCC EMC Directive CE EMC DirectivesConforms to RoHS