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Grant Instruments Yoyo 2YL-T15-4M and 2YL-T16-4M

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The simple to use 2YL-T15-4M and 2YL-T16-4M Yoyo thermocouple data loggers from Grant Instruments are designed to measure temperature with a 4 million readings memory.

The 2YL-T15-4M has a single input for Type K, T, N, S, R, J, B, E thermocouples, 4 million readings memory, a measuring range - 100 to 1300 ºC and IP40 rated housing.

The 2YL-T16-4M has the same speciifaction as above with two inputs for Type K, T, N, S, R, J, B, E thermocouples.

Both models supplied with YoyoLog View software, USB lead and long life battery.

Product Features

  • 2 model types
  • Document downloads

Instrument product options

1. Select a model (2 available)

Continue to select accessories

2. Select accessories

3. Select a calibration



Standard delivery includes: 1 data logger, 1 standard battery, software YoyoView, USB cable, manual, and manufacturers declaration of conformity.

Grant Instruments offers a range of Yoyo data loggers including versions for temperature, humidity, condensation, extra-low voltage, strain gauge, voltage, current, pulse, barometric pressure, as well as light and solar radiation. Please contact our sales team on 01344 459314 or sales@bis.fm if the version you require is not listed within the website.

Basic YoyoView software

The basic software, included with the logger is suitable for configuring the data logger, downloading and exporting basic data. All loggers are connected to a PC or laptop via a USB cable.

YoyoView Plus software

In addition to the functionalities of the basic software, the optional upgrade offers more complex analyses of data, charts and statistics.

  • Three scaleable Y-axes
  • Zoom function
  • Cursor readings
  • Display in spreadsheet format
  • Combination of a series of measurements in one chart
  • On-line metering
  • Statistical functions



Type 2YL-T15-4M single channel thermocouple logger

Dimensions d x h      50 mm x 45 mm

Ambient temperature range       - 40 to + 90 °C

Measuring temperature range      - 200 to + 1770 °C

Accuracy      Dependent on thermocouple input

Internal temperature sensor resolution      0.01 K

Memory capacity      4 million readings

Sensor type      1 x termocouple

Logging interval      1 second to 24 hours or Fastmode, 2 Hz

Enclosure rating     IP40

Battery type      LITH-12

Battery life (logging speed)      4 years @ 1 min. / 230 days @ 10 sec. / 25 days @ 1 sec.

Suitable probes      Thermocouples - type K, T, J, B, E, N, R and S

Type 2YL-T16-4M two channel thermocouple logger, as above with additonal

Sensor type     2 x termocouple



Grant Yoyo logger data sheet

  • Technical Document
  • PDF file
  • 1 MB

Grant Yoyo logger user manual

  • Technical Document
  • PDF file
  • 1 MB

Grant YoyoGraph software user manual

  • Technical Document
  • PDF file
  • 1 MB
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