Data logger of the HD35 series: customized data management - secure & flexible

The HD35 wireless system is the most powerful and flexible wireless data logger system on the market, offering you countless application possibilities and individual advantages.

  • Flexible
    versions for indoor and outdoor mounting (IP67), can be combined as required
  • Future security
    through an open and expandable system
  • Data integrity
    by 3-fold storage of the data (in the data logger, in the access point and in the database)
  • Integrated measurements
    for facility management, environment and industry
  • Long battery life
    no power supply necessary
  • Data is in the user's hands - MySQL database
    simultaneously open interface
  • Various hardware interfaces
    for various applications (USB, Ethernet, WLAN, RS485, GSM)
  • Long range
    due to the 868 MHz radio frequency used, low susceptibility to interference
  • Individual settings
    for measuring and logging interval
  • No or minimal installation costs
  • FDA CFR 21 Part 11 compliant software (optional)
Your technical adviser from GHM GROUP
“Modern wireless data logger systems must be able to meet the changing and growing requirements of the user and they must allow for flexible expansion. We have the solution for our customers and their applications.”

Your technical adviser from GHM GROUP

Well-advised with the GHM GROUP.


Do you need additional information? We will be happy to advise you on all aspects of our products and solutions. If you have any questions, please use our contact form. Our service team will reply promptly with important tips and technical information.

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HD35 series data loggers in action

Customized data management is crucial for the integrated monitoring of cold stores and laboratories. It must offer both flexibility and security.

The HD35 wireless data logger system offers cold store operators the optimal solution for their requirements. The recorded data from several cold stores and laboratories are collected centrally in a local database and can be accessed and viewed simultaneously from several workstations. In addition, the customer benefits from the visual and acoustic alarms, as well as from the possibility of adding additional data loggers to the overall system as required. This makes the use of GHM GROUP technology a cost-efficient and future-proof implementation.

HD35 - customized data management

The innovative data loggers of the HD35 series offer data security through 3-fold memory. The 868 MHz radio frequency used ensures a long range with low susceptibility to interference. Individual settings for measuring and logging intervals and customized data management enable optimum adaptation for countless areas of application.

Measurable variables

Measurable variables

The right sensor for every area.

The path is the goal

The path is the goal

You decide the type of data recording.

GHM GROUP – where quality and variety are the key variables

GHM Messtechnik GmbH is a leading specialist and full-range supplier for innovative measurement and control technology. With a global focus and passionate employees, the company develops and produces a wide range of more than 2,000 high-quality device types for all essential areas of industrial sensors and electronics.

The customer is the company's primary focus

The GHM GROUP continues in its consistent efforts to permanently advance measuring and regulation technology with innovative developments and application-specific solutions with high customer value.

Efforts are centred on the development of customer-oriented solutions that are appropriate for the market and tailored to the high demands of industry and producing industry.


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You can reach us by phone Mo-Th from 7:00 am to 5:00 pm and Fr from 7:00 am to 4:00 pm.


Tenter Weg 2-8  |  42897 Remscheid  |  GERMANY