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Temperature data logger from -80°C up to 140°C with contact sensor

L-Disk HT is a contact temperature data logger from -80°C to 140°C (calibration from -60°C to 140°C), with internal sensor, managed with Windows software and USB interface (DiskInterface HS, Multibay). The sensing point is located at the centre of the upper flat surface, for contact monitoring. There are two versions: with standard calibration from -60°C to 80°C, studied for lyophilization processes, and the HT version with standard calibration from -60°C to 140°C. Battery is user replaceable and the data logger is provided with an Accredia (NIST equivalent) traceable cetificate on 6 points. With calibration from -60°C it can be used also at -80°C with an accuracy within ± 0,5 °C within range -80 °C ÷ -60 °C. If -80°C is requested to be on the certificate, an extra calibration point for very low temperatures must be purchased.

tacky thermal pads (35 X 35 mm) to improve heat conductibility on rough surfaces are included.

There are also other models of very low temperature data loggers.


SPD - Complete software (USB drivers included)
DiskInterface HS, DiskInterface HS Mini - USB drivers Windows XP / Vista / 7
DiskInterface HS, DiskInterface HS Mini - USB drivers Windows 8 / 10
TS Manager - Complete software (USB drivers included)
Tecno Calib - Complete software (USB drivers included)
Multibay - USB drivers Windows Xp / Vista / 7
Multibay - USB drivers Windows 8 / 10
DiskInterface (old model) - USB driver Windows XP / Vista / 7 / 8 / 10



Main features

  • Contact sensor with fast response time
  • Completely food grade and waterproof
  • Suitable for lyophilization processes validation
  • All software calculate lethality value (F0, PU, A0 ecc.)
  • Low battery consumption for an extended battery life
  • User replaceable battery (software shows battery status)
  • Accredia (NIST equivalent) traceable calibration certificate included from -60°C
  • Available extended calibration from -80°C (order extra calibration points)


  • Extremely high accuracy and precision: with an accuracy of ± 0,1°C these devices can be employed for applications involving pharmaceuticals, validation, laboratory and medical field
  • High accuracy even outside the calibration range
  • High accuracy even from -80°C
  • Fast response time also thanks to thacky thermal pads
  • Printed reports compliant with health regulations and ISO (data are not editable in the software)

The system

The system is made up by:

  • L-Disk temperature data logger
  • DiskInterface HS or Universal Multibay
  • SPD software or TS Manager software (compatible with the FDA 21 CFR Part 11 regulation)

Dimensions 29,5 h X 35 Ø (mm)
Weight 25 g
Materials Stainless steel AISI316L, PEEK
Temperature range -80 °C ÷ +140 °C
Standard calibration points (temperature) -60/-30/0/25/50/75/100/121/140°C
Extra calibration points (temperature) Within the range -80 °C ÷ +140 °C
Temperature resolution 0,01 °C
Temperature accuracy ± 0,1 °C within the range -60 °C ÷ +140 °C, ± 0,2 °C within the range -80 °C ÷ -60 °C (valid in the calibration range)
Memory (n. of acquisitions) 54.528
Acquisition step From 1 every second up, with 1 second steps
Protection degree IP68
Battery life +8.000.000 acquisitions at 1 second step continuously (calculated time @25°C. Battery life may be shorter if used in low temperatures)
Software&Mobile App SPD, TS Manager
Accessories DiskInterface HS, Multibay universale



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