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LogTag Temperature Logger with Display and Probe

$192.50$242.00 inc GST

Now with audible alarm

The new release of this popular logger features a new display layout, audible alarm and expanded 15,900 reading memory. Works with all LogTag external probes.

Huge Memory

This LogTag has enough memory for 15,900 recordings - that's 66 days at 6 minute intervals.

Audible Alarm

If the Tag logs temperatures outside the safe range you have set, you will be alerted by an audible alarm. You can check the status of the logger on screen.

Replaceable Battery

This model features a replaceable battery. The battery is a regular watch battery, readily available for leading retailers.

Need more? Build the ultimate vaccine monitoring kit

How warm did your vaccine stock really get? See at a glance.

Attaching this LogTag to a vial filled with glycol (antifreeze), gives you the most accurate measurement of actual liquid temperatures, rather than air temperatures inside the fridge.

See any temperature events at a glance and get an audible alarm if temperatures are out of range.

LogTag with Glycol vial


Product Model TRED30-16R (Replaceable 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 -10°C to 40°C (14°F to 104°F).
Rated Temperature Reading Accuracy 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). 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 0.1°C (0.2°F) for measurements -40°C to 50°C (-40°F to 122°F). 0.2°C (0.4°F) for measurements 50°C to 70°C ( 122°F to 158°F). 0.3°C (0.5°F) for measurements 70°C to 80°C ( 158°F to 176°F). 0.4°C-0.6°C (0.7°F to 1°F) for measurements 80°C to 99°C ( 176°F to 210°F). 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 Time Typically less than 2 minutes (T90) in moving air (1m/s) for ST100T, ST100H and ST100S types.
Recording Capacity 15,905 temperature readings. 66 days @ 6min logging. Day summary statistics memory (for display on LCD): up for 30 days of Max/Min/duration and alarm trigger statistics.
Sampling Interval Configurable from 30 seconds to hourly.
Logging Start Options Push button start or specific date & time. Optional start delay of up to 18 hours.
Recording Indication State indicator “RECORDING”.
Download Time Typically less than 10 seconds for full memory (15,905 readings), depending on computer or readout device used.
Environmental IP61 (when vertically mounted or hung).
Power Source 3V CR2032 (LiMnO2) coin cell battery, user replaceable.
Battery Life Typically 1 year of operation. NOTE: Typical battery life assumes 6 minute logging, day statistics are reviewed on the display no more than once daily for no longer than 30 seconds each time. Download data monthly. NOTE: Continual activation of the audible alarm will reduce the working life of the battery. When an alarm is triggered, the alarm should be cleared and reset as soon as possible.
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).
Standard Remote Sensor Cable Length 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 41g.
Case Material Polycarbonate.
Compliance and Certifications FDA CFR21 Part 11FCC EMC DirectiveCE EMC DirectivesConforms to RoHS

External Probes for LogTags

ST100B – Untipped

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

Not rated for food contact or environmentally rated.

40mm tip length, ⌀3.2mm

65mm tip length, ⌀3.2mm

90mm tip length, ⌀3.2mm

30mm tip length, ⌀5mm

Available with 1.5m or 3m cable


140mm tip length, ⌀5mm



Handled with 105mm tip length, ⌀5mm