BITUO TECHNIK / ENERGY MANAGEMENT

SPM02/FLEX Miniature Energy Meter

The SPM02 Miniature Energy Meter (Flexible version) is an advanced electrical monitoring device designed for three-phase applications. With its compact size, it is ideal to installed above or below circuit breakers, requiring no space on Din-rails. The SPM02 offers precise, real-time data collection for energy consumption, ensuring seamless integration into energy management systems.

Product Type

SPM

Variants

- Space saving: Fits easily into new or existing power distribution boards without taking DIN-rail space

- Real-time Monitoring: Tracks voltage, current, power, and energy for efficient management 

- Large Aperture: Supports cable sizes up to 16mm² with a 9.6mm aperture for maximal 63A measurement.

- Accurate Metering: Provides Class 1 energy measurements according to IEC 61557-12 standards

- Seamless Connectivity: Supports Wi-Fi, Zigbee, and BLE, offering a range of connectivity options for integration into home or industrial energy management systems.

- Innovative Architecture: Combines a communication SoC with a metering MCU for OEM/ODM firmware customization

Download: Datasheet | Manual

KEY FEATURES

Wi-Fi, Zigbee, and RS485 Modbus RTU configurations.

Built for accurate electrical monitoring in compact installations.

Adaptable connectivity for connected energy workflows.

Configure SPM02/FLEX for your panel

Speak with our technical team about system fit, connectivity, and monitoring requirements.

Parts & Specifications

Click the markers to uncover component details.

Core Capabilities

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SPM02-FLEX_detail-01

Real-Time Monitoring

Slim 18mm DIN-rail module, compact split-core CTs, and pluggable terminals support a straightforward installation—ideal for space-constrained electrical panels and boards.

SPM02-FLEX_detail-02

Easy Installation

Slim 18mm DIN-rail module, compact split-core CTs, and pluggable terminals support a straightforward installation—ideal for space-constrained electrical panels and boards.

SPM02-FLEX_detail-03

Visual Energy Charts

Slim 18mm DIN-rail module, compact split-core CTs, and pluggable terminals support a straightforward installation—ideal for space-constrained electrical panels and boards.

SPM02-FLEX_detail-04

Combo Communication

Slim 18mm DIN-rail module, compact split-core CTs, and pluggable terminals support a straightforward installation—ideal for space-constrained electrical panels and boards.

Technical Information

Detailed wiring diagrams and physical dimensions for your reference.

Select the Connectivity that Meets Your Needsplans

Everything you need, at every stage.

SPM02-*2TW (Tuya Wi-Fi)
SPM02-*2EW (Open Wi-Fi)
SPM02-*2TZ-U01 (Std. Zigbee)
Communication Type
Wi-Fi
BLE + Wi-Fi
Zigbee
Communication API
Tuya Proprietary
MQTT, HTTP, UDP, BLE, etc.
Standard Zigbee 3.0 Clusters / Attributes
Smart Home System Integration
Tuya/Smart Life
Home Assistant
Home Assistant, SmartThings, Homey
Commercial Project Integration
Tuya Cloud
Customer-specific cloud or Hub
Zigbee gateway
Wireless Communication SoC Firmware Customization
Yes (In collarboration with Tuya)
Yes (ESP32-8685)
Yes (EFR32MG21)
Recommended Users
Energy IoT Beginners
Professional DIYers, System Integrators
System Integrators
SPM02-*2TW (Tuya Wi-Fi)
Communication TypeWi-Fi
Communication APITuya Proprietary
Smart Home System Integration Tuya/Smart Life
Commercial Project IntegrationTuya Cloud
Wireless Communication SoC Firmware CustomizationYes (In collarboration with Tuya)
Recommended UsersEnergy IoT Beginners
SPM02-*2EW (Open Wi-Fi)
Communication TypeBLE + Wi-Fi
Communication APIMQTT, HTTP, UDP, BLE, etc.
Smart Home System Integration Home Assistant
Commercial Project IntegrationCustomer-specific cloud or Hub
Wireless Communication SoC Firmware CustomizationYes (ESP32-8685)
Recommended UsersProfessional DIYers, System Integrators
SPM02-*2TZ-U01 (Std. Zigbee)
Communication TypeZigbee
Communication APIStandard Zigbee 3.0 Clusters / Attributes
Smart Home System Integration Home Assistant, SmartThings, Homey
Commercial Project IntegrationZigbee gateway
Wireless Communication SoC Firmware CustomizationYes (EFR32MG21)
Recommended UsersSystem Integrators

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