Mini Squirrel dataloggers

The GenII MS Mini Squirrel is a new series of compact stand-alone data loggers.

The first release of the GenII MS Mini Squirrel series is intended for RH, temperature and CO2 applications.

The dataloggers are of rugged construction, battery operated and ideal for short or long term environmental monitoring.

Common Features

Mini Squirrel is ideal for monitoring smaller spaces such as galleries or laboratories. A feature of the Mini Squirrel is ease of deployment and data download. A top panel mounting jack socket is provided for data download.

The scrolling LCD display provides real time sensor values and screen prompts inform the user that the logger is set up and ready to go as required.

Eltek's Darca Lite Windows software is designed for use with the MS Mini Squirrel, enabling the user to configure, download data, and graph historic data quickly and easily.

A communications lead, type LC99, is required in order to connect the datalogger to a PC. This must be ordered separately.

MS13E and MS14E

RHT10E high spec RH and temperature probe can be placed precisely where needed. MS14E additionally provides two temperature (thermistor) inputs.


MS13E / MS14E

MS47AC and MS47B

Indoor, AC mains or battery operated air quality transmitter with built-in CO2 0-5000ppm NDIR technology, RH and temperature sensors.


MS47AC / MS47B


Perfect for environmental monitoring. With built in RH and temperature sensors, easy and low cost.




WBG Wall bracket docking kit

This kit enables fitment of the transmitter's built-in wall bracket to difficult or uneven surfaces. The kit provides additional docking security.

The following products are supported:

  • All GD, GC, GL and GS series transmitters
  • RP250GD repeater and RC250 receiver


Common device specification

Operating environment

Temperature: -5 to +55°C, RH: 0-95% non condensing
Environmental rating: IP50
(Secondary enclosure available for outdoor use, rated IP60)

Data storage

Logging interval: 1 second to 24 hours
Memory capacity is expressed in "readings"
One channel enabled is 87,000 readings
Two channels enabled is 104,000 readings
Three channels enabled is 112,000 readings
Four channels enabled is 118,000 readings

Channel allocations can be renamed using Eltek software. For example, Channel 1 can be configured to appear as "Main Gallery"

Number of recording runs: 1

Darca Lite Software

Eltek's Darca Lite software allows configuration, download and analysis of Mini Squirrel devices.

Input Specification

Model(s) Sensors Range Resolution Accuracy
MS10 Temperature -30 to 65°C 0.1°C ±0.4°C (+5 to +40°C)
±1.0°C (-20 to +65°C)
±1.5°C (-30 to -20°C)
RH 0-100% 0.1% ±2% (10 to 90%RH)
±4% (0 to 100%RH)
MS13E RH (RHT10E) 0-100% 0.1% ±2% (10 to 90%RH)
±4% (0 to 100%RH)
Temperature (RHT10E) -40 to +120°C 0.1°C ±0.4°C (+5 to +40°C)
±1.0°C (-20 to +80°C)
MS14E RH (RHT10E) As MS13E
Temperature (RHT10E) As MS13E
2 x external thermistor temperature -40 to +70°C 0.1°C ±0.2°C (-15 to +40°C)
0.2°C ±0.4°C (-29 to +65°C)
0.3°C ±0.6°C (-36 to +70°C)
0.4°C ±0.8°C (-40 to -36°C)
MS47AC / MS47B RH (RHT10E) As MS10
Temperature (RHT10E) As MS10
CO2 0-5000ppm 3% ±50ppm


Product datasheet

Mini Squirrel datasheet