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YoYo TempLog

Simple temperature data loggers

YoYo TempLog
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TempLog is a robust data logger for measuring temperature. There are several models of loggers available: loggers with integrated sensors or loggers with up to 2 externally connectable probes.

The standard probes include low cost sensors for humidity/temperature, surface humidity, surface temperature and condensation. The accuracy for temperature measurements is ± 0.3°C. External temperature probes provide an accuracy of up to ± 0.1°C.


Yoyo data loggers are robust and used for measuring and recording a wide variety of variables: temperature, humidity, condensation, extra-low voltage, strain gauge, voltage, current, pulse, barometric pressure, as well as light and radiation.

The loggers are made of high quality, shock-proof POM-composed synthetic material. The devices are protected from water ingress according to IP65.

Versatile, flexible & easy to operate

In order to meet the specific demands of various applica-tions the loggers come in different designs and with different enclosures:

  • with integrated sensor (e.g. for monitoring shipments)
  • with connectable probes for differentiated analyses with different parameters
  • with sensor integrated in a 100mm stainless steel tube (e.g. for measurements in air ducts, or for pharmaceutical or biological research)

Probes can be easily connected to the logger through screw on connectors, allowing flexible use and quick ex-change.

High-quality and fast

The logger provides memory capacity for 100,000 rea-dings (optional 4 million), which can be read out via USB within seconds via a transfer rate of 500 kbps.

Long durability

The large memory capacity and the low current con-sumption allow logging for years without the need to monitor the device. The “continuous” mode makes it possible to overwrite old data with new readings. Should the battery be completely discharged during operation the integrated none-volatile flash memory will keep the readings safe.

Status visualisation by LED

The yoyo data loggers are equipped with an integrated status LED which can be used for different functions:

  • displaying when a threshold has been exceeded
  • indicating low battery
  • displaying the data logging status (making it easy to identify the device’s condition)


Catalogue no.ModelSensor positionSensor
External sensorsMemory sizeList Price£
YL-T16-4M YL-T16-4M External only Thermocouple Yes 4 million 330.00
YL-T16 YL-T16 External only Thermocouple Yes 100,000 268.00
YL-T15-4M YL-T15-4M External only Thermocouple Yes 4 million 286.00
YL-T15 YL-T15 External only Thermocouple Yes 100,000 223.00
YL-T12-4M YL-T12-4M External only Pt100,Pt100 & Thermistor Yes 4 million 255.00
YL-T12 YL-T12 External only Pt100,Pt100 & Thermistor Yes 100,000 193.00
YL-T11-4M YL-T11-4M External only Pt100,Pt100 & Thermistor Yes 4 million 229.00
YL-T11 YL-T11 External only Pt100,Pt100 & Thermistor Yes 100,000 166.00
YL-T10E-4M YL-T10E-4M External Integrated Temperature No 4 million 259.00
YL-T10E YL-T10E External Integrated Temperature No 100,000 198.00
YL-T10-4M YL-T10-4M Internal only Temperature No 4 million 233.00
YL-T10 YL-T10 Internal only Temperature No 100,000 170.00