Innovative sensor exchange with the H2S Sensor Module

Table of Contents

As your expert for H2S measuring instruments, Microtronics is interested in continuous development. In this way, your devices remain state of the art. In addition, Microtronics makes the process of sensor replacement and calibration more convenient for you and saves your resources in the process.

Exchangeable sensor

The H2S Sensor Module is simply plugged into the base transmission unit of the BLE Gateway. The great advantage of this is that you simply drive to your measuring station with a new H2S sensor module and exchange the H2S sensor module on site. The magnetic contact ensures that the H2S sensor module has been inserted correctly. Send the “old” H2S Sensor Module for calibration and then use it again. The H2S sensor  must be calibrated every 6 months as usual. The immediate exchange on site means that there are no more data gaps. Every 24-36 months, a service interval is due and the BLE Gateway is brought in for a battery refill. These greatly simplified processes save your resources and reduce the communication effort between you and your service and calibration partner.


Acting in an environmentally friendly way is close to Microtronics’ heart. Therefore, the H2S Sensor Module as well as the BLE Gateway were developed according to the latest eco-design guidelines. This is implemented, for example, by refilling batteries and sensors. At calibration intervals of 6 months, the sensor is reconditioned by Microtronics or a certified partner. The battery in the BLE Gateway is refilled at service intervals of approx. 24-36 months. All batteries are taken back by Microtronics and disposed of according to current environmental standards. By using primary cells instead of rechargeable batteries, the runtime is increased by up to sixty times. Cost-effective spare parts round off the green thinking and reduce waste. At Microtronics, the product life cycle is thought through to the end, from development to return and disposal.

Requirement-adapted BLE gateway

H2S Operating principleThe BLE Gateway stores the measured values of the H2S Sensor Module. In order to adapt the transmission and the field of application exactly to your needs, four variants are offered. These variants differ in data transmission and in the certified ATEX zone.

You can read out your readings via Bluetooth Smart. To do this, you must be within 10 metres of the BLE Gateway using the free DeviceConfig software. With the 3G version, the measured values are transmitted to the web server via UMTS/3G and can be viewed permanently by you.  Both the Bluetooth Smart and 3G variants are available in an option for ATEX Zone 1.

Low cost spare parts

The BLE Gateway is equipped with a robust, chemical-resistant rubber armour. That is why it is also ideally suited for use in rough, dirty environments. Nevertheless, in addition to the sensor, which needs to be calibrated regularly, and the battery, which has a limited life of 24-36 months, there may always be maintenance and wear and tear around the device. Here Microtronics has created a cost-effective model in that all spare parts of the BLE Gateway can be taken back and replaced individually. For example, the rubber armour, the display, the lower part of the unit including the FME antenna connection or even the upper part including the window for the display can be replaced at low cost.

Overview of the key features

  • Exchangeable sensor unit
  • Refill of sensor and battery
  • Use in Atex Zone 1
  • No more data holes thanks to exchange model
  • Reduction of communication effort and resource consumption
  • Low cost spare parts
  • Robust, chemical-resistant rubber armour for use in harsh environments
  • Data transmission via Bluetooth Smart or 3G


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