SiS Sensoren Instrumente Systeme GmbH

RTM 4002 X - The Second Generation of Electronic Reversing Thermometer

RTM 4002 X Photo

The RTM 4002 X is a digital deep sea reversing thermometer with the outer dimensions of mercury instruments. The features are:

  • Replaces mercury instruments
  • High resolution and accuracy
  • Range of -2.0000 to 40.000 °C
  • Long-term stable platinum sensor
  • Easy to read digital display
  • Electronically protected against loss of sample value
  • Displays mean value, standard deviation and burst samples
  • Easy handling
  • Robust glass - titanium housing with double O-ring seals
  • 10000 m depth capability
  • Contains no mercury
  • Suitable for laboratory use

It has the same positive features as classical reversing thermometers but without the disadvantages:

  • The displayed values are the real sample values. Use of a secondary thermometer is no longer required.
  • Reading of values with maximum accuracy no longer needs optical magnification.
  • The sampled values are protected against inadvertent further reversing.
  • One instrument with a range of -2.0000 to 40.000 °C replaces a set of high precision mercury reversing thermometers.
  • Displays the mean value, which is the average of sixteen individual readings of a burst series.
  • For quality determination, the standard deviation is displayed and the individual measurements of the burst can be read out.



Range-2.0000 to 40.000 °C Weight170 g
Resolution±0.0001 °C (-2.0000 to 9.9999 °C)
±0.001 °C (10.000 to 40.000 °C)
Sampling Frequency1.25 Hz (0.8 seconds per sample)
Accuracy±0.003 °C Burst Sampling Size16 samples
Stability±0.00025 °C per month Power SupplyOne ½ AA sized lithium thionyl chloride battery sufficient for 3000 samples
Dimensions327 mm length
20 mm diameter
SwitchMagnetic operation


Additional Information

SiS GmbH reserves the right to change specifications without prior notice.

[Home]Home     [Products]Products     [Top of page]Top of page