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  • Java
  • Android
  • C++
  • HTML
  • XML
  • BLE


Chrometrix Systems, a laboratory equipment supplier.


The customer was already tapping Softeq’s software implementation skills for building a comprehensive data acquisition and management system. The solution was to utilize hardware and software components for aggregating, processing, and storing information retrieved from the humidity and temperature data loggers installed in a laboratory.

Development of a set of standalone temperature and humidity data loggers equipped with temperature sensors affording ultralow temperature measuring capabilities. A custom Android app was to enable working with collected data.


Softeq’s team designed and developed standalone air temperature and relative humidity data loggers to be installed in laboratories to facilitate ongoing data aggregation. The devices are built as one-channel and six-channel instruments that automate data collection and its submission to the server-based register.

Temperature Sensor
  • Has an extended temperature measuring range — from -200 to +120 °C
One-channel Data Logger
  • Automatically measures temperature at a given time interval and with a designated precision
  • Stores up to 4,000 records in nonvolatile memory
  • Outputs data to an e-Ink display
Six-channel Data Logger
  • Automatically measures temperature at a given time interval and with a designated precision using 6 sensors
  • Stores up to 4,000 records per sensor in nonvolatile memory
  • Automatically transmits collected data to the server over HTTP
  • Displays temperature fluctuation chart
  • Sends alerts upon exceeding the set threshold temperature
  • Connects to LAN via Ethernet or Wi-Fi
  • Supports PoE
  • Is equipped with a web interface for administering the device
Android Application
  • Works with data acquired from the data logger via Bluetooth Low Energy or USB
  • Is designed to retrieve data from custom-made sensors, as well as 3rd party sensors such as DS1921, DS1922
  • Transfers acquired data to the server
  • Programs sensors
  • Outputs retrieved data in the form of a table or a chart

Temperature and Humidity Data Gathering Process


The team employed a conventional Waterfall-based software development process due to well-defined requirements availability.


The resulting solution is an end-to-end system that relies on special custom-made components not available with the core manufacturers. With some high-level tweaks left to complete, once released, the engineered solution is set to make an excellent multiunit and functionally rich custom alternative to the generic choice of similar temperature and humidity instruments offered on the market.

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Standalone Sensor-based Temperature & Humidity Data Loggers | Softeq


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