Temperature datalogger for ultra low freezers from -80°C up to 140°C with probe of various lenghts. Printed reports compliant with health regulations and ISO.

S-Disk J Ultra Freeze is a temperature data logger from -80°C to 140°C (calibration from -40°C to 140°C) with 20 or 100 mm or on demand length external probe (probes cannot be switched) on a 5 mm base (base height is not counted for probe length), managed with Windows software and USB interface (DiskInterface HS, Multibay). Battery is user replaceable and the data logger is provided with an Accredia (NIST equivalent) traceable cetificate on 6 points.
The ultra low temperatures datalogger looks like the S-Disk J standard but it includes a calibration from -40°C. With calibration from -40°C it can be used also at -80°C with an accuracy within ± 0,5 °C within range -80 °C ÷ -40 °C. If -80°C is requested to be on the certificate, an extra calibration point for very low temperatures must be purchased. It is particularly indicated for monitoring and validation of ultra freezers.

The other versions of the data logger are:

  • S-Disk J: with rigid probe of different lengths
  • S-Disk J Flexible: with flexible cable probe and rigid probe at the end
  • S-Disk J Bendable: with semi-rigi metal bendable probe and rigid probe at the end
There are also other models of high temperature data loggers, for pressure and humidity too.

Note: if used below -30°C, battery life will be highly reduced. Mission max duration at -80°C: 12 hours. Using the logger for long periods below -40°C will constantly reduce mission max duration. For longer missions purchase a S-MicroW series logger with -80°C special battery.


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

  • With different lengths rigid probe for penetration
  • Completely food grade and waterproof
  • All software calculate lethality value (F0, PU, A0 ecc.)
  • Low battery consumption for an extended battery life
  • User replaceable battery (software shows battery status)
  • Very easy to deploy in any type of package
  • Accredia (NIST equivalent) traceable calibration certificate included from -40°C
  • Available extended calibration from -80°C (order extra calibration points; in case of wide calibration range the accuracy might be worse)


  • Extremely high accuracy and precision: with an accuracy of ± 0,1°C these devices can be employed in any application involving pharmaceuticals, validation, laboratory and medical field
  • High accuracy even outside the calibration range
  • Save money on calibration costs with calibration from -40°C included
  • High accuracy even from -80°C
  • Fast response time thanks to the 3 mm diameter probe
  • Printed reports compliant with health regulations and ISO (data are not editable in the software)

The system

The system is made up by:

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

Dimensions 22 h X 35 Ø (mm)
Probe dimensions Probe base dimensions 5 h X 14 Ø (mm) - Probe 20/100 l X 3 Ø (mm) - - Probe l on demand X 3 Ø (mm) (l on demand: min. 10 mm / max. 175 mm. For longer probes ask for quotation)
Weight 60 gr
Materials Stainless steel AISI316L, PEEK
Temperature range -80 °C ÷ +140 °C
Standard calibration points (temperature) -40/-20/0/25/50/75/100/125/140°C
Extra calibration points (temperature) Within the range -80 °C ÷ +140 °C
Temperature resolution 0,01 °C
Temperature accuracy ± 0,1 °C (within the 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


You may also be interested in...