Best selling Energy monitors

1. Shelly Pro 3EM 120A

The Shelly Pro 3EM is a Wi-Fi-operated, DIN-mountable 3-phase power consumption meter with Wi-Fi, Bluetooth, and LAN connectivity. With its 1% accurate active energy measurement, the Shelly Pro 3EM can be used to monitor the consumption of all household appliances, circuits, and office devices individually. Historical data is stored for up to 60 days, with each phase having a one-minute resolution. Additionally, the scripting functionalities allow for the execution of complex scenarios and provide advanced monitoring options.

Includes 3 current transformers 120 A. more

Energy monitors

CHF70.90

Shelly Pro 3EM 120A

322

2. Shelly Pro 3EM-3CT 63

Next generation of DIN rail mountable energy meters for single or three-phase applications with a combined 63A, 3-phase current transformer.

The Shelly Pro 3EM-3CT63 is a DIN rail mountable energy meter for single or three phase applications. It is equipped with all the flexibility of Gen2 firmware and LAN connectivity and offers professional integrators additional options for end customer solutions. It can operate standalone on a local LAN and/or Wi-Fi network or via cloud home automation services using Modbus, MQTT, HTTP and WebSocket. All incoming connections support TLS.

The device reports the accumulated energy as well as the instantaneous voltage, current, active and apparent power per phase/channel in real time. It stores data in non-volatile memory, which can be retrieved at 1-minute intervals over a period of up to 60 days.

The device has a real-time clock that maintains the correct time if the connection to an SNTP server is lost.

The Shelly Pro 3EM-3CT63 can be accessed, set up and monitored remotely by the user and the device can access and communicate with an automation system as long as they are on the same network.

The device has an integrated web interface that can be used to monitor and control the device and customise its settings.

Note: The device does not have a built-in relay. The contactor is controlled via a Shelly Pro 3EM switch add-on connected to the Shelly Pro 3EM-3CT63. more

Energy monitors

CHF94.90

Shelly Pro 3EM-3CT 63

24

3. Max Hauri Energy meter 220-240V max. 2300W

Energy meter / Voltage: 220-240V / Power: max 2300W / Additional function: increased touch protection. This energy meter is designed to measure the energy consumption of the connected device and calculate the resulting electricity costs. The electricity price is freely programmable. Important additional data such as power, voltage, current, power factor, frequency, and operating time can be easily retrieved. An ideal device for implementing targeted energy-saving measures. • Measures the energy consumption of connected devices • Power, voltage, current, power factor, frequency, and operating time can be retrieved • Ideal for implementing targeted energy-saving measures. more

Energy monitors

CHF20.–

Max Hauri Energy meter 220-240V max. 2300W

124

4. Whatwatt Energiemessgerät

The Whatwatt WiFi Energy Meter is an advanced device for monitoring and analysing energy consumption. It enables precise measurement of energy consumption and offers a user-friendly interface via WiFi and RJ-45 (LAN). With the integrated smartphone app, users can calculate their energy costs in real time and conveniently monitor consumption from their mobile device. The device supports various smart meter interfaces and is compatible with iOS and Android devices, enabling seamless integration into existing smart home systems. It also offers the option of local data storage on a micro SD card, which increases data security and makes it easy to analyse consumption data. Power is supplied via a USB-C cable, which is included in the scope of delivery, while the adapter is available separately. more

Energy monitors

CHF90.–

Whatwatt Energiemessgerät

21

5. Shelly PRO EM - 50

The Shelly Pro EM-50A is a DIN-mounted single-phase energy meter with an integrated switch for relay control. With an accuracy of 1% in measuring active energy, the Shelly Pro EM-50 can be used to monitor consumption and control various household appliances, circuits, and office equipment. The device features a data history of 60 days in 1-minute intervals. Additionally, its scripting capabilities allow for the execution of complex scenes and provide more comprehensive monitoring options. more

Energy monitors

−9%

CHF59.90 was CHF65.90

Shelly PRO EM - 50

11

6. Shelly 3EM-63W Gen3

The Shelly 3EM-63W Gen3 (Wire Model) is an advanced three-phase energy meter specifically designed to accurately measure energy consumption in three individual phases. With a maximum load of up to 63 A and an accuracy of 99 %, this device fulfils IEC 62053-21 Class B standards. It enables real-time monitoring of power data such as current, voltage and power factor with a resolution of one minute. In addition, the Shelly 3EM-63W stores energy consumption data at hourly intervals for up to five years, enabling comprehensive analysis of energy consumption. The compact design integrates electronics and current transformer in one unit, minimising the space required on the DIN rail. Easy installation and advanced connectivity options make this device an ideal choice for modern smart home applications. more

Energy monitors

−6%

CHF60.90 was CHF64.90

Shelly 3EM-63W Gen3

27

7. Voltcraft SEM6000 CH

Elegant design meets top precision. The VOLTCRAFT SEM6000 CH BT energy cost meter offers the perfect compromise between design and functionality. Hidden within the compact 55 by 55 millimeter pure white housing of the SEM6000 CH is high-quality measurement technology that accurately measures power consumption and power factor to three decimal places.

Current energy consumption at a glance: Thanks to the simple LED ring, which is elegantly integrated into the housing, you can quickly see the current energy demand of the connected device. The LED ring's color ranges from deep green to red, changing according to energy consumption. Green indicates low consumption, while red signals high energy demand.

Consumption analysis in your preferred file format: You can easily and conveniently convert energy consumption data into various Office and Google formats in the form of graphs. Whether you want to analyze days, weeks, months, or years, it's all possible.

Your smartphone becomes a remote control: Simply turn the VOLTCRAFT SEM6000 CH on and off using your smartphone or tablet. This way, it not only serves as an energy cost meter but also transforms your device into a remote control.

Automated switching of connected devices: Want your lighting to automatically turn on at 8 PM and off again at 6 AM? No problem. Program your switching times easily via your smartphone or tablet. You can program a total of 12 switching times (either on or off) for the SEM6000 CH. Each switching time can be set as one-time or recurring (selecting the weekdays on which the switching time repeats).

Special features: Bluetooth interface, data export, data logger function, cost forecasting, adjustable electricity tariff, app control. more

Energy monitors

CHF35.95

Voltcraft SEM6000 CH

214

8. Voltcraft Energy Cost Meter

The Voltcraft SEM5000 is plugged in between the socket and the consumer and quickly and precisely displays the energy consumption or electricity costs in the selected currency. How much energy is consumed in a given time? The SEM 5000 is an energy logger. The logger uses the same technology for extremely precise energy cost measurement as all devices in the proven Voltcraft SEM series. However, this device has been specially developed for use in companies that do not allow any connection to the IT infrastructure. Therefore, you will not find a Bluetooth or WLAN connection with this device. Recorded power data is transferred to a company PC for further processing with the help of an SD card and is thus completely independent of company networks or mobile devices. On the display itself, active power, mains voltage, current, power factor, mains frequency, kilowatt hours, energy costs and CO₂. Maximum values can also be shown directly on the display, e.g. to record short-term switch-on peaks. To minimise reading errors, an extremely high-contrast EBTN display is installed, which is optimised for a reading angle of 90° frontal to 170° from above, as most sockets are below eye level. For convenient programming at the desk and without connection to the mains, the display switches the illumination down to a minimum. Wear parts such as rechargeable batteries or batteries in the unit have been dispensed with. A maintenance-free Super Cap capacitor provides up to 10 min of energy to set and save times, electricity tariffs or CO₂ emission settings. more

Energy monitors

CHF59.95

Voltcraft Energy Cost Meter

21

9. Steffen digital brilliant

Ideal for indoor use. Displays watts, amperes, volts, hertz, power factor (cos φ), or kilowatt-hours. Equipped with overload protection. Two tariffs can be set. Features a large LCD display. The energy meter shows you the voltage, frequency, current, and power values in real-time and works with all electrical devices in your household. more

Energy monitors

CHF24.–

Steffen digital brilliant

806

10. Shelly 3EM

The Shelly 3EM distinguishes and detects energy consumption and energy feed-in to the grid. The measurement data is displayed in the app, the optionally activatable cloud, and the web interface in clear graphics. Additionally, MQTT can be activated to register it with a corresponding MQTT broker. It is factory calibrated with the included clamps, achieving an accuracy of over 99%. Furthermore, it features a relay contact that can be used to control a relay, for example. Installation is done in the distribution box on the DIN rail. The measurement values are displayed in real-time. It is also possible to calculate energy costs. The Shelly 3EM can be controlled via the Shelly app, the optionally activatable cloud, as well as through MQTT and REST API. Energy consumption thresholds can be set, and when reached, the Shelly 3EM can switch off the power via the relay contact. Control based on time or sunrise and sunset is also possible. In addition to measuring energy consumption, the energy fed into the grid can also be measured. The Shelly 3EM automatically detects how much energy is consumed and how much is fed in, presenting this information clearly in a graphic. The measurement data is stored in the cloud for 365 days. The data is also written to a CSV file in 5-minute intervals, which can be exported by the Shelly 3EM. The Shelly 3EM features a programming and debug header that can be used for flashing alternative firmware. It is equipped with an ESP8266 with 4 MB of flash. It can be integrated into various smart home systems: Home Assistant, Hubitat, openHAB, Domoticz, REST API, MQTT, ioBroker, nymea, and HomeSeer.

Included in delivery: 1x Shelly 3EM, 1x user manual, 3x current transformers 120A. more

Energy monitors

CHF69.80

Shelly 3EM

272