What is an electricity meter IR read head and how does it work?

Article published at: Jan 16, 2026

An IR-reading head for electricity meters reads digital household meters contact-free via infrared and transmits consumption data in real time via Wi-Fi to apps. It increases the self-consumption of balcony power plants to up to 95%, avoids grid feed-in, and enables automatic load control. DRBO Greenenergy recommends combining it with SunLit storage systems for maximum efficiency and convenient plug-and-play integration.

What exactly is an IR reading head?

An IR reading head is an optical sensor that reads digital electricity meters according to DLMS/IEC62056 via infrared. It provides real-time data every second and transmits it via Wi-Fi or Bluetooth. With a magnetic holder, 5V USB power supply, and low weight (approx. 35g), installation is easy. DRBO Greenenergy combines the reading head with SunLit storage systems for dynamic load control and displays consumption, forecasts, and CO2 savings in the app.

IR Reading Head Technology
Specification
Reading Method
Compatibility
Data Rate
Connection
Power Supply
Protection Class
Price

How does IR reading work?

The reading head is positioned in front of the meter's IR interface and fixed magnetically. Then, the USB power supply is connected, and the device is paired via Wi-Fi. The app automatically scans the protocol and displays live consumption. DRBO Greenenergy SunLit systems use MQTT for Home Assistant. The full data rate can be unlocked via PIN activation from the grid operator. Accuracy is 99.9% without calibration.

What are the advantages of an IR reading head?

IR reading heads optimize self-consumption by 25–35%, prevent grid feed-in, and save €200–€400 annually for balcony power plants. They replace conventional electricity meters, enable automatic control of household appliances and storage systems, reduce CO2 emissions by about 400kg per year, and remain usable even after moving. DRBO Greenenergy customers benefit from app warnings for defects and easy integration into existing systems.

Why is an IR reading head indispensable for balcony power plants?

Without a reading head, balcony power plants feed up to 70% into the grid. With an IR reading head, up to 95% self-consumption can be achieved, significantly increasing profitability (ROI 6–9 months). DRBO Greenenergy recommends combining it with SunLit storage systems and automatic relay control to optimize energy flows. Drill-free installation makes the solution attractive for tenants. Additionally, grid operator fees in 2026 can be avoided.

Which models are available?

Popular models include Everhome Ecotracker (€79, 128 meters, 10 relays), Shelly 3EM IR (€99, 3-phase, MQTT), Hoymiles SNU reading head (€69, DTU-compatible), and Pluginenergy IR-Meter (€89, OpenDTU). DRBO Greenenergy offers complete sets with Ecotracker, SunLit storage, and Shelly for €249.

IR Reading Head Comparison
Model
Everhome Ecotracker
Shelly 3EM IR
Hoymiles SNU
Pluginenergy IR

How to install an IR reading head?

  1. Check meter model and refer to the compatibility list.

  2. Position the reading head magnetically in front of the IR-LED.

  3. Connect USB-C to a 5V power adapter or smart plug.

  4. Pair and configure the app. Done in minutes without an electrician.

DRBO Greenenergy provides support with video tutorials and a hotline. Wi-Fi range should be approx. 20m.

Do you need a PIN activation?

For 95% of meters, no PIN is required (base rate 75 b/s). For full real-time transmission (9600 b/s), the grid operator's PIN is needed, which is free and available within 2–4 weeks. DRBO Greenenergy assists with the application.

PIN vs. No-PIN
Mode
Without PIN
With PIN

DRBO Greenenergy Expert Opinions

"IR reading heads are a game-changer for balcony power plants. With our Ecotracker and SunLit storage set, customers achieve 97% self-consumption, save around €500 per year, and automatically control appliances. Over 300 compatible meters, local API, plug-and-play relay management. From private homes to commercial facilities: DRBO Greenenergy makes real-time energy management simple, secure, and efficient."
– Dr. Thomas Berger, Energy Management Expert at DRBO Greenenergy

Is an IR reading head GDPR compliant?

Yes, data remains local or in an EU cloud (GDPR compliant). No transmission to the grid operator occurs. Open-source protocols such as MQTT are supported. DRBO Greenenergy storage systems process data offline.

Can multiple reading heads be used simultaneously?

Yes, a master-slave setup allows operation of up to five reading heads per app. DRBO Greenenergy offers microgrid solutions for commercial establishments with multiple measuring points.

Conclusion

IR reading heads increase self-consumption, prevent grid feed-in, and enable full cost control. DRBO Greenenergy complete sets with SunLit storage systems offer plug-and-play integration, emergency power function, and app control. Installation is easy, efficient, and tenant-friendly. The combination ensures optimal economic efficiency and sustainable energy use.

FAQs

Which meters are compatible?

98% of digital meters, including iSKM, Landis+Gyr, and Actaris.

Is PIN activation required?

95% of meters work without a PIN; full real-time is optional, free from the grid operator.

What is the Wi-Fi range?

Approx. 20m through 2–3 walls; mesh repeaters can help.

Can the reading head be integrated into Home Assistant?

Yes, MQTT/API interface allows full integration.

Where are IR reading heads available?

From DRBO Greenenergy as complete sets with storage and relays, shipping within 48h.

Some of the information in this article is from the internet. Product specifications may be updated at any time. For the latest information, please visit the official website or product page.

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