SDM01/TWM Energy Meter / Energy Meter (3P+N, 120 A, Tuya Wi-Fi & Modbus)

3-Channel WiFi Energy Meter 120 A - Smart Power Monitoring Meter with Split-Core Current Transformers and Relay Switch - Real-Time Power Consumption Meter

The SDM01-TWM Smart Energy Monitor is a compact monitoring device consisting of a DIN-rail-mounted monitor with a width of just 18 mm and three split-core current transformers (CTs). As a professional 3-phase WiFi & Modbus energy meter, it accurately measures real-time data such as voltage, current, power, and energy. Thanks to its seamless connection to the Tuya Smart Cloud, you can monitor and manage your energy consumption in real time.

Highlights:

• Real-time monitoring : Always keep an eye on important electrical data such as voltage, current and power.
• Bidirectional measurement : Measure the energy flow in both directions, both during consumption and during generation.
• Easy installation : The monitoring module requires only 1 MW of DIN rail space and works with compact split-core current transformers (CTs).
• Smart life : Benefit from smart features like chart analysis, alarm notifications, and scene settings.
• 99% Accuracy : With a high-quality chip, the device achieves measurement accuracy of up to 99%. This allows you to precisely determine the power consumption of your devices. If you're looking for a reliable power meter, this is the perfect choice.
• APP Remote Monitoring : With the Smart Life or Tuya app, you can view current, voltage, power, and total consumption in real time. You'll also receive notifications in case of overvoltage, undervoltage, or overload to protect your electrical devices.
• Free consumption statistics : With the Smart Life/Tuya app, you can easily track the daily, monthly, and annual energy consumption of your devices. This helps you better manage your household energy consumption.
• 3 x 120 A independent measurement : The 3-phase WiFi energy meter comes with three split-core current transformers, each of which can measure up to 120 A independently.
• It includes three central ICs – a metering MCU , a ESP32-8685 Wi-Fi and a RS485 isolation IC – as well as an embedded website for local access.

Technical data

• Product model : SDM01/TWM-12
• Communication type : Wi-Fi, Modbus
• Nominal voltage Un (LN) : ~ 220-240 V, 50/60Hz
• Nominal voltage Un (LL) : ~ 380-415 V, 50/60Hz
• Maximum current Imax : 120 A
• Overvoltage category : III
• Rated insulation voltage Ui : 400 V
• Rated impulse voltage Uimp : 4 kV
• Degree of contamination : 3
• Degree of protection : IP20
• Rated operating temperature : -25~60 ℃
• Power consumption during normal use : 0.7 W
• Power consumption in pairing mode : 1.4 W

Quick Installation Guide

Step 1: Install SDM for real-time data
Install the SDM on your power distribution board (consumer unit). Start by monitoring your total household energy consumption, or alternatively, the consumption of three individual large or medium-sized appliances.

Step 2: Track consumption patterns and identify waste
Analyze your energy data to identify peak usage times and the appliances responsible for them.
Discover areas where energy is wasted and consumption exceeds your expectations.

Step 3: Optimize your consumption habits for savings
By adjusting your electricity usage habits to data-based consumption patterns, you can identify and eliminate unnecessary consumption, such as accidentally turning on lights or continuously heating water.
Use historical data to track your progress and gain a better understanding of your energy savings.

Quick installation video