SL55T-A Miniature Temperature data logger (+15°C to +140°C with ±0.2°C Accuracy)

  • £189.00Ex.VAT
  • £467.00Ex.VAT
  • £1,031.00Ex.VAT
  • £1,674.00Ex.VAT

SL55T-A Miniature Temperature Data Logger

Miniature temperature data logger that measures from +15°C to +140°C with a maximum accuracy of ±0.2°C. 

Starter kits are also available with either two or five miniature temperature data loggers, including individual calibration certificates (not shown), the USB interface lead and the TEMPIT-PRO software:

SL55T-A Starter Kit

The SL55T-A is a self contained, miniature temperature data logger with the ability to record up to 8,000 temperature points over the range +15°C to +140°C with an accuracy of ±0.2°C from +110°C to +140°C ideal for autoclave verification and extreme heat ovens. The button data loggers themselves are very small (about the same size as a watch battery) which enable them to be inserted into small items and packages. 

SL55T-A Small Temperature Data Logger 

When used with the SL50-ACC10 protective enclosure, they provide a convenient tool for autoclave verification and where they are exposed to extreme heat levels:

Autoclave Validation Data Logger

The SL50-INTERFACE-USB cable interfaces to the USB port of a PC and is totally compatible with the user friendly, FREE OF CHARGE, TempIT-LITE operating software which enables the logger to be set up and the data read and displayed in graphical format. Data can be stored and retrieved at a later time. The software can be up-graded to TempIT-Pro which provides various additional features such as data table view, export data to spreadsheet, email graphs, and automated MKT, F0, A0 and PU calculations etc.

Please note: If ordering online, there will be a slight delay in despatching the temperature data loggers due to the calibration procedure, typically 2-3 working days.

Each SL55T-A temperature data logger is supplied with a UKAS 17025 traceable calibration certificate, full UKAS accredited calibration certificates are available as a chargeable option. Calibration is carried out at +110°C, +121°C and +135°C. If non-standard calibration points are required or if you require a fully UKAS accredited calibration certificate, please contact us on 01684 299 399 or email

The USB Interface lead and software are not included with this temperature data logger but you can find details of these and other related items below.


Power Internal Battery
Battery Life Typically 150 hours accumulative or 150 cycles in excess of +85°C.
See detailed battery life calculator
Measuring Range +15°C to +140°C (59°F to +284°F)

±0.2°C from +110°C to +140°C
±0.5°C from +80°C to +110°C
±1.0°C from +15°C to +80°C

Calibration certificates included with the device use calibration points of +110°C, +121°C and +135°C. Other calibration points are available on request. 

Resolution 0.5°C in low resolution mode
0.07°C in high resolution mode
Sample Rate 1 second to 24 hours

1 second to 1 minute in 5 second steps
1 minute to 1 hour in 1 minute steps
1 hour to 24 hours in 1 hour steps
Number of Readings Stored 8192 in low resolution mode
4096 in high resolution mode
Reusable When Memory Full Yes
Response Time 63% step change - 90 seconds in circulating air
10% to 90% step change - 180 seconds in circulating air
Waterproofing IP55 - Protected against ingress of dust and protected against low-pressure jets of water'
Please see waterproof enclosures if the product is to be submerged in liquid
Delayed Start Yes, you can specify a time and date to start logging up to 1 year in advance with one minute resolution
Software Alarms Yes, high and low alarms can be specified in the software
Intrinsic Safety Meets UL#913 (4th Edit.); Intrinsically Safe Apparatus, approval under Entity Concept for use in Class I, Division 1, Group A, B, C, and D Locations
Material 305 Stainless Steel
Dimensions 17mm diameter x 6mm high
Warranty 1 Year

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