Reliable Electricity Energy Monitor Manufacturer and Developer

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Wireless Home Uni-directional (1-way) Electrical Energy Monitor

General Introduction of our 1-way Energy Monitors

The 1-way electricity energy monitor is for monitoring purpose with low cost. Its transmitter uses sensor clamps (for normal and solar version) or LED IMP reader (for our optical version) to collect electricity consumption data. It provides real-time, prompt and convenient feedback of home electrical energy consumption on the LCD screen of the display unit, hence providing a constant visual reminder of the electricity consumption and carbon footprint. This will increase awareness of energy saving and encourage the user to act to reduce the energy consumption and CO2 emission.

The 1-way energy monitor does not have remote control function. For more advanced and multi-functional system, please refer to our bi-directional (2-way) electricity energy saving monitoring and control system. If you are looking for a powerful system for bigger area or for engineering applications, then our centralized electricity management system should be your very right choice.

Standard Package of our RCS-S22A Wireless Home Energy Monitor
(supporting up to 15pcs transmitters and 3-phase)

wireless home electricity energy monitor

Our 1-way electricity monitors can also be used for monitoring the electricity output of home solar plant and for monitoring the balance between the solar energy output and home energy consumption. For details please refer to our wireless home electricity monitors with solar power monitoring function (1-way energy monitor solar version).

The 1-way system is also integrated for our customers with smart home system, smart metering system and solar inverter system, this is what we are doing for some world brands of smart meter and solar inverter. Our R&D team is in a good position to work together with our esteemed customers for various In-home Display (IHD) integrations based on various communication interfaces (such as RS-232, RS-485 and etc.) and different communication protocols, including 433MHz, Mbus, ZigBee, and etc.

How the wireless 1-way energy monitor works?

Description of the System of Sailwider Electricity Energy Monitors

The wireless uni-directional (1-way) electricity energy saving monitor adopts 433MHz wireless transmission technology and can be used to monitor the energy-consuming conditions of one single energy-consuming unit or one master outlet that covers many electricity-consuming units. The monitor's easy-to-read LCD screen displays in real time the power consuming status and the carbon dioxide (CO2) correspondingly produced by the electricity consumed. It forecasts the electricity power cost of one hour, one day or one month for the monitored object. It also has the functions of time display, temperature display and humidity display.

The 1-way system simply consists of one monitor and one power transmitter which can support up to 3pcs sensor clamp, allowing to monitor single or three-phase power supplies. A RJ45-USB data cable is also available to provide connection with computer and make the user able to analyze the electricity consumption data conveniently on PC.

The monitor can be placed anywhere in the house since it works wirelessly with the power transmitter. So put it where there is a wall socket and where you feel most convenient to watch the energy data on the LCD screen.

sensor clamp to detect current of live wire

The transmitter collects the electricity consuming data through the sensor clamps.

Fix the clamp around the null wire or the live wire of the monitored object , just as left photo is showing. Usually the clamp is fixed around the null line or the live line below the electricity meter.

After registration (pairing) of the power transmitter with the display unit (monitor), the system begins to work and start to monitor the electricity power consuming conditions of the monitored object in real time.

The transmitter can support up to 3pcs sensor clamps. Three sensor clamps are required for monitoring the three-phase power supplies.

The monitor can allow up to 15 coding channels. Up to 15 transmitters can be paired and monitored with just one monitor.

We have three kinds sensor clamps for different cable diameter: 10mm, 18mm and 25mm.

power sensor clamps

We have another type of 1-way energy monitor which use the LED IMP reader instead of the sensor clamp to collect data from the meter.

meter IMP led sensor reader for energy monitoring system

The LCD display screen of the uni-directional (1-way) electrical energy monitor works as below (Only for reference, the LCD display can be customized according to customer's request):

LCD Display Screen of the Electricity Energy Monitors

Sailwider-SmartPower is the original developer and manufacturer for the 1-way and 2-way electricity energy monitoring and controlling system with strong R&D background and rich production experience. If you are looking for a reliable supplier in this field, you really can't miss us.

Send us your own appearance design and tell us what you want to display on the LCD screen for the wireless energy monitor, then you’ll get your ideal products from Sailwider-SmartPower, your most reliable manufacturer and developer from China.

Images of various designs of Electricity Energy Monitors and Control System

Thank you for all the time in studying our products, for more detailed information, please contact us.

We adopts our own transceiver modules for our wireless monitor and control products. If you are looking for a RF Function Module developer and supplier for your project, we are the right choice to provide personalized service and solution for you.

System Specification (The specification can be customized)

Portability of the Monitor

Portable, with built-in battery

With DC Power Adapter


Wireless Transmission


Indoor Minimum Covering Distance (over partitions)


Easy to read LCD screen


PC Link

Yes, with RJ45 to USB data cable

PC Software


Compatibility with 3-phase


Supported transmitter qty.


Supported sensor clamps qty.


Supported coding channels


Transmitter Battery Life

2 years

Signal Interval

8 seconds

Data Accuracy 

≤7% (as per 10mm and 18mm clamp)

Displayed Cost Currencies

£, Euro, $ or customized

Customizable Voltage Range


Max. Monitable Input Current (220V)

60A or 100A

Min. Monitable Input Current (220V)


Cost Forecast Instant View


Memory function


History Screen View


Automatic Switchover of Display Modes


Data Storage Capacity


Temperature Display


Display of CO2 Emission



Download the introduction PDF file: Sailwider-SmartPower uni-directional electricity energy monitor

We welcome new designs of uni-directional energy saving monitor for molding

Image of Energy Monitors

Image of Electricity Minitors

Other products:
Uni-directional (one-way) Electricity Energy-Saving Monitor
Bi-directional (two-way) Electricity Energy Saving Monitor and Control System
Wireless In-home Display (IHD) based on Zigbee, Mbus, 433Mhz and etc.
Centralized Electricity Energy-saving Management System
Wireless Power Supply Remote Control Switch Sockets
Digital/Mechanical Electrical Power Supply Timer Switches
Electric Current Limiter and Temperature Limiter
Multi-socket Sensor Plug Adapter with current power display screen and alarm function
RCS-S09U Universal ISM Band FSK Transceiver Module

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home - about us - products - contact us - In-home Real-Time Energy Display
One-way Electricity Energy Saving Monitor - Two-way Energy Saving Monitor and Control System - Centralized Energy-Saving Management System
Wireless Electricity Energy Sensor Terminals - Energy Ethernet IP Bridge - Energy Gateway (Router)
Electric Current Limiter/Temperature Limiter - Universal ISM Band FSK Transceiver Module

Multi-socket Plug Adapter with Power Display and Alarm Function - Wireless Power Supply Remote Control Switch Sockets - Electrical Power Supply Timer Switches


Chinese manufacturer and supplier of smart solution for electricity energy saving monitor management system.

Shenzhen Sailwider Electronics Co., Ltd. All rights reserved.