---
product_id: 26573493
title: "PL7667-MST CEI Master Adapter"
brand: "cool energy island"
price: "₨2584"
currency: LKR
in_stock: false
url: https://www.desertcart.lk/products/26573493-pl7667-mst-cei-master-adapter
store_origin: LK
region: Sri Lanka
---

# High-speed network Energy monitoring Secure connection PL7667-MST CEI Master Adapter

**Brand:** cool energy island
**Price:** ₨2584
**Availability:** ❌ Out of Stock

## Summary

> 🔗 Connect, Monitor, Thrive!

## Quick Answers

- **What is this?** PL7667-MST CEI Master Adapter by cool energy island
- **How much does it cost?** ₨2584 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/26573493-pl7667-mst-cei-master-adapter)

## Best For

- cool energy island enthusiasts

## Why This Product

- Trusted cool energy island brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lifetime Assurance:** Enjoy peace of mind with a lifetime warranty on your investment.
- • **Seamless Integration:** Communicates effortlessly with other adapters, including Wi-Fi extenders.
- • **Transform Your Space:** Turn existing wiring into a high-speed, secure network instantly!
- • **Plug-and-Play Convenience:** No batteries required—just plug it in and watch the magic happen!
- • **Energy Efficiency Champion:** Monitor your energy usage in real-time for smarter decisions.

## Overview

The PL7667-MST CEI Master Adapter by Cool Energy Island is a cutting-edge device that transforms your existing wiring into a high-speed, secure network. It features energy monitoring capabilities and communicates seamlessly with other adapters, ensuring a robust and efficient system. With a lifetime warranty and no batteries required, this adapter is the perfect solution for modern connectivity needs.

## Description

Product Description               500 Mbps AC power energy measurement and management /Ethernet master adapter, with a pass-through plug and Ethernet adapter, for network and broadband services serves as the central energy consumption information collection point for the entire system. It is the only adapter in the industry that has an Energy Management and Ethernet Communications capability in a single adapter. By attaching an Ethernet cable to this adapter from the home's router or modem, the home's wiring is instantaneously transformed into a high-speed, encrypted network that can be used to communicate video, audio and/or data. The unit sends data to the online software and signals auxiliary appliances to turn on/off as defined in the cloud-based application. This adapter is designed to support up to 63 other adapters (probably less - depending on home / business wiring, data volumes, etc.). YOUR SYSTEM MUST HAVE AT LEAST ONE MASTER ADAPTER.                  From the Manufacturer               500 Mbps AC power energy measurement and management /Ethernet master adapter, with a pass-through plug and Ethernet adapter, for network and broadband services serves as the central energy consumption information collection point for the entire system. It is the only adapter in the industry that has an Energy Management and Ethernet Communications capability in a single adapter. By attaching an Ethernet cable to this adapter from the home's router or modem, the home's wiring is instantaneously transformed into a high-speed, encrypted network that can be used to communicate video, audio and/or data. The unit sends data to the online software and signals auxiliary appliances to turn on/off as defined in the cloud-based application. This adapter is designed to support up to 63 other adapters (probably less - depending on home / business wiring, data volumes, etc.). YOUR SYSTEM MUST HAVE AT LEAST ONE MASTER ADAPTER.

## Features

- Adapter that serves as the information collection point and gateway for the system
- Transforms existing wiring into a high-speed, secure network as soon as it is plugged in
- Working Energy Monitoring device
- Communicates with other adapters including Wi-Fi extender
- SYSTEM MUST HAVE AT LEAST ONE MASTER ADAPTER

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Cool Energy Island |
| Part Number | PL7667-MST |
| Item Weight | 1 pounds |
| Product Dimensions | 5.35 x 2.65 x 1.66 inches |
| Item model number | PL7667-MST |
| Item Package Quantity | 1 |
| Batteries Required? | No |
| Warranty Description | Lifetime |

## Images

![PL7667-MST CEI Master Adapter - Image 1](https://m.media-amazon.com/images/I/81jA0jo-OsL.jpg)

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**Shop now:** [https://www.desertcart.lk/products/26573493-pl7667-mst-cei-master-adapter](https://www.desertcart.lk/products/26573493-pl7667-mst-cei-master-adapter)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-26*