Deskripsyon

3WIRE WattCheck

WattCheck Smart IoT Energy Meter

3Wire WattCheck is a compact Wi-Fi enabled smart power meter designed to clip directly onto compatible existing MCBs or MCCBs. It turns ordinary electrical panels into smart circuit-level monitoring points with very low installation friction.

WattCheck is designed for fast and practical energy visibility. No DIN rail space is required, no major cable modification is needed, and no complicated rewiring is required in suitable applications. It supports Tuya / Smart Life app monitoring, real-time energy data, fault notifications, ±1% accuracy, bi-directional metering and single-phase or three-phase options.

Meter Type Clip-on IoT smart energy meter

Connectivity Built-in Wi-Fi with Tuya / Smart Life app

Installation No DIN rail, no major rewiring, MCB / MCCB mounting

Options 1P, 3P and 3P split-CT versions

Product Description

WattCheck is designed for sites that need circuit-level energy monitoring but do not want the complexity of traditional sub-metering installation. It clips onto compatible protection devices and provides online monitoring through the Tuya or Smart Life app.

Many facilities only monitor electricity at the main incomer. This gives total energy consumption but does not show which area, tenant, machine, office, outlet or circuit is consuming energy. WattCheck helps close this visibility gap by making circuit-level monitoring easier to install and easier to access.

Best use case: WattCheck is suitable for fast retrofit monitoring of selected MCB / MCCB circuits where conventional DIN rail sub-metering is difficult, costly or space-constrained.

Product Visuals

WattCheck Smart Energy Insight

WattCheck Clip-On Meter

3P Split CT Option

3P Direct Mount Option

Key Features

MCB / MCCB Mounting

Clips directly onto compatible protection or control devices and can be mounted on top or bottom where suitable.

No DIN Rail Required

Does not occupy DIN rail space, making it easier to install in existing panels where space is already limited.

Built-In Wi-Fi

Enables online energy monitoring and remote access for distributed sites, shops, offices and facilities.

Tuya / Smart Life App

Monitor energy data remotely using Tuya or Smart Life app without complex software setup.

Real-Time Monitoring

Measure voltage, current, power and energy in real time to understand circuit-level consumption behaviour.

Fault Notifications

Supports fault notifications and alarms to help users detect issues early and respond faster.

±1% Accuracy

Provides practical metering accuracy for energy visibility, load tracking and monitoring applications.

Bi-Directional Metering

Supports import and export energy monitoring where energy flow direction needs to be observed.

Fast Retrofit Monitoring

Ideal for existing panels where conventional sub-metering is too difficult, too costly or too time-consuming.

Typical WattCheck Monitoring Architecture

WattCheck is installed directly onto compatible existing MCBs or MCCBs. It connects online through Wi-Fi and sends energy data to the Tuya / Smart Life app for remote monitoring, real-time charts, notifications and practical circuit-level visibility.

1 Existing MCB / MCCB

2 WattCheck Meter

3 Built-In Wi-Fi

4 Tuya / Smart Life

5 Energy Visibility

Model Variants

WattCheck is available for single-phase and three-phase systems, including direct-mount and split CT options. Select the version based on the circuit type, current rating and installation condition.

Model Type	Description	Current Rating	Typical Use
1P Single Phase	Direct mount for MCBs.	Up to 63A.	Single-phase circuits, small loads, office circuits, shop lots, retail circuits and residential monitoring.
3P Three Phase	Direct mount for three-phase MCBs.	Up to 63A.	Three-phase sub-circuits, small equipment, compact panels and selected three-phase loads.
3P with Split CT	MCCB mount using split-core CTs.	Up to 200A.	Larger feeders, MCCB circuits and retrofit applications where direct mounting is not suitable.

Selection note: Confirm the circuit type, breaker type, mounting clearance, current rating, Wi-Fi availability and safety access before selecting the WattCheck model.

What Can Be Monitored?

Monitoring Item	Description	Operational Value
Voltage	Monitor circuit voltage remotely.	Identify abnormal supply condition and voltage-related issues.
Current	Monitor current draw of selected circuits.	Understand loading and detect abnormal usage behaviour.
Power	Monitor real-time power consumption.	Identify major loads and usage patterns.
Energy	Monitor accumulated kWh consumption.	Track energy usage by circuit, tenant, area or equipment.
Fault Notifications	Receive app-based fault notifications.	Improve response time for selected circuit issues.
Real-Time Charts	View usage trends through app-based visibility.	Support energy review and behavioural analysis.

Typical Applications

Smart Homes

Monitor selected home circuits, air-conditioning loads, lighting circuits and high-usage electrical points.

Smart Buildings

Improve circuit-level energy visibility for offices, commercial spaces, common areas and selected loads.

Retail and Branch Sites

Suitable for shops, clinics, branches, outlets and small facilities that need fast energy visibility.

Existing MCB Circuits

Monitor selected MCB circuits without taking up DIN rail space in crowded panels.

MCCB Feeders

Use split CT options for larger feeders and MCCB-based retrofit monitoring applications.

Energy Efficiency Projects

Collect practical energy data before and after improvement actions to verify consumption changes.

Benefits

Lower Installation Friction

Reduces wiring work, panel modification and installation complexity in suitable applications.

Better Circuit Visibility

Understand energy usage at a practical circuit level instead of relying only on main incomer readings.

Remote Access

Use the Tuya or Smart Life app to monitor energy usage anytime and anywhere.

Retrofit Friendly

Ideal for existing panels where conventional sub-metering is difficult, costly or space-limited.

Fast Energy Awareness

Deploy quickly to identify high-usage circuits, abnormal consumption and usage behaviour.

Part of 3Wire Ecosystem

Can support wider 3Wire and IoTWatt 4.0 digital energy monitoring strategies where required.

Integration with IoTWatt 4.0

WattCheck is mainly designed for quick app-based circuit-level monitoring. For sites requiring advanced analytics, long-term dashboards, digital energy audit evidence, reporting and savings tracking, WattCheck can support a wider digital energy monitoring strategy together with IoTWatt 4.0, selected gateways and other metering solutions.

Use WattCheck for fast, selected-circuit energy visibility.
Use IoTWatt 4.0 for advanced dashboards, analytics, baselines and reporting.
Monitor selected single-phase or three-phase loads for abnormal consumption.
Support energy efficiency projects with practical before-and-after data visibility.
Use with other 3Wire meters and gateways where a larger metering architecture is required.
Combine quick retrofit monitoring with formal energy audit and EECA reporting workflows.

Integration note: WattCheck is ideal for quick visibility and practical circuit checks. For industrial-grade energy analytics, IoTWatt 4.0 can be used alongside higher-end metering and gateway systems depending on the project requirement.

Recommended Deployment Checklist

Confirm the circuit type: single-phase, three-phase direct mount or three-phase split CT.
Confirm breaker type, mounting position and available clearance.
Confirm current rating: up to 63A for direct mount versions or up to 200A for split CT version.
Confirm Wi-Fi signal availability at the electrical panel location.
Confirm Tuya / Smart Life app setup, account ownership and site user access.
Confirm the circuits to be monitored: tenant, office, retail, air-conditioning, lighting or selected equipment loads.
Confirm installation safety procedure and whether shutdown is required.
Confirm monitoring objective: energy visibility, fault notification, before-after savings check or load investigation.
Confirm whether data must also support IoTWatt 4.0, EMS, reporting or digital energy audit workflows.

WattCheck Selection, Installation and Energy Monitoring Support

Saturn Pyro supports 3Wire WattCheck Smart IoT Energy Meters for MCB / MCCB circuit monitoring, single-phase and three-phase energy visibility, Wi-Fi app-based monitoring, retrofit energy checks, smart building applications, retail branch monitoring and wider IoTWatt 4.0 digital energy audit projects in Malaysia.

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