The SL51T, SL52T and SL53T are self contained single channel temperature data loggers with the ability to record up to 8,000 data points. They operate in a temperature range of -40°C to +125°C depending upon the model chosen. They are very small (about the same size as a watch battery) which enables them to be inserted into small items and packages.

- SL51T - Lowest cost, water resistant
- SL52T - Water resistant, larger memory and faster sample rates
- SL53T - High temperature, water resistant

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The SL50R Button Reader™ (available separately) interfaces to the USB port of a PC and is totally compatible with the user friendly, 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.

Although not essential, the software can be up-graded to TempIT-Pro which provides various additional features such as data table view, export data to spreadsheet, and automated MKT, F0, A0 and PU calculations etc. If needed, purchase TempIT-Pro from the related products on the right.

The SL51T is a member of the SL50 series, each model having specific advantages:

SL51T - Lowest cost, -40°C to +85°C measuring with ±1.0°C Accuracy

The SL50R Button Reader™ (available separately) interfaces to the USB port of a PC and is totally compatible with the user friendly, 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.

Although not essential, the software can be up-graded to TempIT-Pro which provides various additional features such as data table view, export data to spreadsheet, and automated MKT, F0, A0 and PU calculations etc. If needed, purchase TempIT-Pro from the related products on the right.

SL51T-A - Identical to the SL51T but supplied with three point calibration certificate

All USB data loggers are fully compatible with our user friendly software - TempIT. TempIT-Lite is free of charge and allows the logger to be set up and the data read and displayed in graphical format. Graphs can be stored, printed or retrieved at a later time. TempIT-Lite can be up-graded to TempIT-Pro which provides various additional features such as data table view, export data to spreadsheet, email graphs, F0 and A0 calculations, and automated mean kinetic temperature (MKT) calculations etc.

SL51USB - Lowest cost, stores 2048 readings and ±1°C accuracy

The SL51M is a self contained single channel temperature data logger supplied with rubber mounting tag. The SL51M has the ability to record over 2000 data points. The SL51M operates in a temperature range of -20°C to +50°C. The SL51M is coloured bright yellow for easy identification and retrieval and can be fixed in place by either using the internal magnet or by using a security tie or screw through the mounting hole provided.

The SL50R Button Reader™ interfaces to the USB port of a PC and is totally compatible with the user friendly, 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, snap to trace, and automated MKT Calculations etc.
Download Product Data Sheet

The SL50R Button Reader™ interfaces to the USB port of a PC and is totally compatible with the user friendly, 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.

SL52T - Larger memory and faster sample rates. ±0.5°C Accuracy

The SL50R Button Reader™ interfaces to the USB port of a PC and is totally compatible with the user friendly, 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.

SL52T-A - Identical to the SL52T but supplied with three point calibration certificate

The SL50R Button Reader™ interfaces to the USB port of a PC and is totally compatible with the user friendly, 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, snap to trace, and automated MKT Calculations etc.

All USB data loggers are fully compatible with our user friendly software - TempIT. TempIT-Lite is free of charge and allows the logger to be set up and the data read and displayed in graphical format. Graphs can be stored, printed or retrieved at a later time. TempIT-Lite can be up-graded to TempIT-Pro which provides various additional features such as data table view, export data to spreadsheet, email graphs, F0 and A0 calculations, and automated mean kinetic temperature (MKT) calculations etc.

SL52USB - Up to 8192 readings, ±0.5°C accuracy and faster sample rates

The SL50R Button Reader™ interfaces to the USB port of a PC and is totally compatible with the user friendly, 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.

SL53T - High temperature 0°C to +125°C

The SL50R Button Reader™ interfaces to the USB port of a PC and is totally compatible with the user friendly, 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.

SL53T-A - Improved accuracy SL53T (±0.2°C from +80°C to +125°C) supplied with calibration certificate

The SL50R Button Reader™ interfaces to the USB port of a PC and is totally compatible with the user friendly, 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 Calculations etc. The TempIT software also automatically calculates dew point from the measured temperature and relative humidity readings.

The SL54M also calculates dew point.

The SL54USB data loggers are fully compatible with our user friendly software - TempIT. TempIT-Lite is free of charge and allows the logger to be set up and the data read and displayed in graphical format. Graphs can be stored, printed or retrieved at a later time. TempIT-Lite can be up-graded to TempIT-Pro which provides various additional features such as data table view, export data to spreadsheet, email graphs, F0 and A0 calculations, and automated mean kinetic temperature (MKT) calculations etc.

SL54USB - Temperature & relative humidity version ±5%RH Accuracy

The SL54USB-A data loggers are fully compatible with our user friendly software - TempIT. TempIT-Lite is free of charge and allows the logger to be set up and the data read and displayed in graphical format. Graphs can be stored, printed or retrieved at a later time. TempIT-Lite can be up-graded to TempIT-Pro which provides various additional features such as data table view, export data to spreadsheet, email graphs, F0 and A0 calculations, and automated mean kinetic temperature (MKT) calculations etc.

Please note: If ordering online, there will be a slight delay in despatching the items due to the additional calibration procedure required to convert the 'standard' SL54USB to the SL54USB-A

SL54USB-A - Temperature & relative humidity version ±2%RH Accuracy

The SL50R Button Reader™ interfaces to the USB port of a PC and is totally compatible with the user friendly, 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.

SL55T-A - Improved accuracy of ±0.5°C from +80°C to +140°C

The SL50R Button Reader™ interfaces to the USB port of a PC and is totally compatible with the user friendly, 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.

SL55T-A - Improved accuracy of ±0.5°C from +80°C to +140°C

- Measure from 1 to 5 parameters
- Large LCD display
- 2 external inputs
- Light sensor
- Fast data download (1,000 values/second)
- Up to 16,000 measurement points
- 2 configurable setpoint alarms
- Small dimensions
- Magnetic mounting
- IP 67 or IP 40 housing and Elastomer protection pads

Units displayed................................ °C, °F, %RH, mV, V, mA, A, Lux,°Ctd,°Ftd
Resolution....................................... 0.1°C, 0.1°F, 0.1%RH,
........................................................ 1mV, 0.001V, 0.001mA, 0.1A, 1 Lux
External inputs................................. 2 Jack connectors (2.5 stereo)
1 Mini-DIN connector Mini-DIN (KH-200-D)
Setpoint alarms................................ 2 setpoint alarms on each channel
Frequency of measurement............. from 1s to 24h
Working temperature....................... from –20 to +70°C (KH-200-A)
from –20 to +70°C (KH-200-D)
Storage temperature........................ from –40 to +85°C
Battery life....................................... 5 years*
(*) on the basis of 1 measurement each 15 minutes at 20°C

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The SL151T loggers are single channel, temperature data logggers that record the time, date and precise temperature for later retrieval and analysis. The data loggers are used in food, pharmaceutical , building management and other industries for temperature monitoring. Typical applications include food safety, where vulnerable or high value products are sensitive to incorrect environmental conditions, which in turn could cause irreparable damage to goods that might not be obvious on receipt. The data logger is sealed in a crevice free and robust plastic tag with no 'bug traps' connections or entries of any kind. The tag can be conveniently located in a packing case, on a pallet or attached directly to the product. This data logger series is particularly suited for cold chain applications to meet EN12830 for the monitoring of food produce in storage and transportation.

The SL151T has a user manifest containing all the details of the application. This could be area being monitored, the vehicle registration number, the batch number or just a description of the application.The user manifest, together with alarm thresholds, are simply downloaded to the data logger by a wireless interface. The same reader retrieves the stored readings which are transferred to a suitable PC or laptop where the flexible TempIT software displays all the information in an easy to read graph, showing clearly if the consignment has been subjected to alarm conditions. The readings are stored in a form that cannot subsequently be altered or manipulated whilst the data logger also records who has read the information thereby ensuring their integrity.

NEW - The SL151T now incorporates a magnetic swipe start function. The data logger can be configured ready to log but left in a dormant state until a magnet is swiped down the side of the data logger.

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The SL151T has a user manifest containing all the details of the application. This could be area being monitored, the vehicle registration number, the batch number or just a description of the application.The user manifest, together with alarm thresholds, are simply downloaded to the data logger by a wireless interface. The same reader retrieves the stored readings which are transferred to a suitable PC or laptop where the flexible TempIT software displays all the information in an easy to read graph, showing clearly if the consignment has been subjected to alarm conditions. The readings are stored in a form that cannot subsequently be altered or manipulated whilst the data logger also records who has read the information thereby ensuring their integrity.

The SL151T incorporates a magnetic swipe start function. The data logger can be configured ready to log but left in a dormant state until a magnet is swiped down the side of the data logger.

Cost effective starter kits are available containing up to five SL151T data loggers.

The latest version of the TempIT-Pro software now automatically calculates the mean kinetic temperature ( MKT ) over the whole logged period or smaller intervals if the zoom function is used.

The SL940 is a robust temperature data logger available in both aluminium and stainless steel. Being totally sealed, it can be totally submersed in liquids. The SL940 will hold over 500 days temperature readings.

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The SL950 is a robust temperature data logger available in both aluminium and stainless steel. Being totally sealed, it can be totally submersed in liquids. The SL950 will hold over 500 days temperature readings and can be subjected to temperature from +10°C to +135°C

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All units feature a digital input which can be used as an event trigger or as a counter input enabling counts of up to 65535 per period to be recorded.

Powered by its own, user replaceable, internal battery that has a typical life in excess of 6 years, up to 128,000 readings can be recorded at intervals from 1 second to 24 hours.

The SL7000 features unprecedented accuracy, combining our extensive knowledge of instrumentation precision with data logging technology. High end resolution of 16 Bit for all universal inputs and a modular build ensures that the unit is competitively priced whatever the application.

An on-board LCD display (Optional) shows selected channel information and integral LED displays provide immediate scanning and alarm status information.

The logger can be set to start immediate, start on an event (either a trigger event or the exercising of an external digital input) or start with the application of an external magnet (Provided). This feature enables loggers to be set up in advance of the mission by a supervisor and to be launched at the start of the journey / log period by an operator.

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Operating Temperature Range: -15°C to +140°C

Diameter Ø25.0mm, Height 18.5mm, widest part of the hex nut is 29.0mm.

Weight: 40g excluding data logger

Our TempIT-Pro software features a special response time correction algorithm whereby the speed of response of the logger inside the SL-ACC10 enclosure (required to protect the logger from pressurised steam or liquids) is electronically compensated for, thus removing the response time errors for the overall system response curves.

Diameter Ø21.0mm, Height 24mm
35mm x 35mm x 35mm high when used with support frame
Weight: 4.7g excluding data logger

Pressure Rating: ±3.5 Bar