LogTag Temperature Data Loggers are the ideal solution for continually monitoring the temperature where ever and when ever temperature is critical. They automatically record the date, time and temperature at a set interval. You can then download the results to a PC where they can be viewed, analysed and saved for later.


The LogTag® low temperature external probe recorder measures and stores up to 8000 temperature readings over a measurement range of -80°C to +40°C (-112°F to +104°F) using interchangeable LogTag® ST10 External Temperature Probes

Product Highlights

• A real time clock provides date/time stamps for each temperature reading.

• Push-to-start button with optional delay or a specific time & date.

• Comprehensive customisation options including alert settings, sample interval and trip duration.

• Robust and durable polycarbonate case with lug for secure mounting.

• Up to 8,000 recordings – enough for the longest trip.

• In-transit inspections can be recorded at the push of a button.

• Interchangeable External Probe with high quality gold plated connector.

• Industry best download time – less than 5 seconds for fully memory.

Recommended Applications:

  • Cold Chain
  • Blood/Organs/Tissue
  • Manufacturing
  • Chemicals
  • Pharmaceuticals
  • Laboratories
  • Clinical Trials


External Sensor Measurement Range -80°C ~ +40°C  (-112°F ~ +104°F)
Recorder Operating Measurement Range -30°C ~ +70°C  (-22°F ~ +158°F)
Resolution < than 0.1°C for -80°C ~ +0.0°C
< than 0.2°C for -0.0°C ~ +20°C
< than 0.5°C for -+20°C ~ +40°C (see below)
Accuracy With recorder case sitting in environmental temperature between 0°C ~ 50°C :-
Better than ±1°C for -30°C~ +20°C
Better than ±1.2°C for -45°C~ -30°C & +20°C~+40°C
Better than ±1.7°C  for -80°C~-45°C
Sensor Reaction Time Typically less than 2 minutes(T90) in moving air (1m/s) for ST10S type
Capacity 8032 readings (16K bytes memory)
Sampling Frequency Adjustable, 30 sec to several hours
Logging Start Options Push button start or specific date & time.
Recording Indication Flashing ‘OK’ indicator / flashing ‘ALERT’ indicator.
Download Time Typically with full memory (8000 readings) in less than 5 secs depending on computer or readout device used.
Environmental IP61
Power Source 3V LiMg battery
Battery Life 2 ~ 3 years of normal use (based on 15 minute logging, download data monthly.
Size 86mm(H)x54.5mm(W)x8.6mm(T)
Weight 35g
Case Material Polycarbonate
Standard External Sensor Cable Lengths Standard: 50cm (19””) (Part# ST10S-05)
Extended: 3 m (9’10”)  (Part# ST10S-30)
External Sensor Cable Type PTFE/FEP (FDA food contact rated) coaxial
Other Features • Logging start by push button or specific date/time start
• Optional clearing of alert indication by push button (places inspection make at same time).
• Download inspection mark recorded in LogTag memory every time LogTag is downloaded.
• ‘Prestart’ fail-safe logging (records temperature data even if not started)
• Low Battery indication in software.
• Comprehensive Alert indicator configuration.
• Calibration to achieve higher accuracy possible.