:: Product Information

TSM2 Temperature Sensor Meter


Instrument Logging

Analogue Channels9 Single Ended (channel 1 of 10 total is 2.5V thermistor excitation measurement)
Minimum Logging Interval1 second
Delayed StartSuspend Logging, Customised Intervals
Sampling Frequency10Hz


CommunicationsUSB, Wireless Radio Frequency 2.4 GHz
Data StorageMicroSD Card, SD, SDHC & SDXC Compatible (FAT32 format)
Software CompatibilityWindows 7, 8, 8.1, 10; Mac OS X
Data CompatibilityFAT32 format for direct exchange of SD card with any PC
Data File FormatComma Separated Values (CSV) for compatibility with all software programs
Memory CapacityUp to 16GB, 4GB MicroSD card included.

Operating Conditions

Temperature Range-40°C to +80°C
R/H Range0-100%
UpgradeableUser Upgradeable firmware using USB boot strap loader function
Internal Battery Specifications

960mAh Lithium Polymer, 4.20 Volts fully charged
External Power Requirements
Bus Power8-30 Volts DC, non-polarised, current draw is 200mA maximum at 17 volts per logger
USB Power5 Volts DC
Internal Charge Rate
Bus Power60mA – 200mA Variable internal charge rate, maximum charge rate of 200mA active when the external voltage rises above 16 Volts DC
USB Power100mA fixed charge rate
Internal Power Management
Fully Charged Battery4.20 Volts
Low Power Mode3.60 Volts – Instrument ceases to take measurements
Discharged Battery2.90 Volts – Instrument automatically switches off at and below this voltage when no external power connected.
Battery Life varies

Example A: With a recommended solar panel and/or recommended power source connected, operation can be continuous.Example B: Power consumption is dependent on number and type of sensors connected, frequency of measurement and measurement duration
  • The TSM2 is a fully self-contained unit requiring power input from a solar panel (field applications) or 24V power supply (glasshouse applications).

  • All data is stored within the unit on a removable MicroSD card.

  • Communication with the TSM2 is made either by USB or wireless connection.

  • The TSM2 is compatible with the ICT Combined Instrument Software. The software is GUI based and extremely user-friendly. This software allows complete control of the TSM2 such as real-time measurements, data logging settings, diagnostics and sensor configuration.

  • The TSM2 has a 2 wire, non-polarised bus for power supply. There is no chance of incorrect wiring of positive and negative voltage because the TSM2 is non-polarised.

  • The TSM2 has an internal lithium polymer battery that is kept charged by an external power supply (solar panel or mains DC power supply).

  • The TSM2 is IP-65 rated and has been demonstrated to operate in extreme environmental conditions. Units are being used in diverse environments from hot Australian deserts, tropical Amazon rainforests, temperate German forests, Indian agricultural fields and North American Arctic cold.


  • Plant physiology (leaf and canopy temperature)

  • Soil, air and fluid temperature

  • Thermistor strings for borehole monitoring

  • Concrete temperature during drying

  • Building energy use studies

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Dianjiang Group Limited
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Tel: (852) 3690 1588   Fax: (852) 3690 1586
Email: Dianjiang_HK@yahoo.com.hk   Hongkong@Dianjiangtech.com
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