---
product_id: 703672831
title: "Syston 18/2 Thermostat Doorbell HVAC Heating Control Cable Wire, 18 AWG 2 Conductors 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated, UV Resistant RoHS for Low Voltage Applications Use"
brand: "syston cable technology"
price: "₨19641"
currency: LKR
in_stock: true
reviews_count: 8
category: "Syston Cable Technology"
url: https://www.desertcart.lk/products/703672831-syston-18-2-thermostat-doorbell-hvac-heating-control-cable-wire
store_origin: LK
region: Sri Lanka
---

# 18 AWG 2 conductors for reliable power UV & sunlight resistant for outdoor use CL3R/FT4/CMR riser-rated insulation Syston 18/2 Thermostat Doorbell HVAC Heating Control Cable Wire, 18 AWG 2 Conductors 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated, UV Resistant RoHS for Low Voltage Applications Use

**Brand:** syston cable technology
**Price:** ₨19641
**Availability:** ✅ In Stock

## Summary

> ⚡ Wire smart, install fast, stay future-ready!

## Quick Answers

- **What is this?** Syston 18/2 Thermostat Doorbell HVAC Heating Control Cable Wire, 18 AWG 2 Conductors 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated, UV Resistant RoHS for Low Voltage Applications Use by syston cable technology
- **How much does it cost?** ₨19641 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/703672831-syston-18-2-thermostat-doorbell-hvac-heating-control-cable-wire)

## Best For

- syston cable technology enthusiasts

## Why This Product

- Trusted syston cable technology brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety-First Rated:** 300V CL3R/FT4/CMR riser-rated insulation ensures top-tier safety and compliance for low-voltage applications.
- • **Pure Copper Powerhouse:** 100% solid copper conductors deliver unmatched conductivity and durability for your HVAC and security systems.
- • **Effortless Installation:** Smooth, round jacket with rip cord design makes pulling through walls and corners a breeze—save time and hassle.
- • **Future-Proof Your Setup:** Ideal for thermostats, doorbells, alarms, and more—engineered to support evolving smart home tech with ease.
- • **Built for All Environments:** UV resistant and RoHS compliant cable stands strong indoors or outdoors, protecting your investment long-term.

## Overview

The Syston 18/2 Thermostat Doorbell HVAC Cable features 18 AWG solid copper conductors with CL3R/FT4/CMR riser-rated insulation, delivering reliable 300V low-voltage performance. Its UV-resistant, RoHS-compliant jacket ensures durability for indoor and outdoor use, while the installation-friendly design with a rip cord simplifies setup. Perfect for HVAC controls, doorbells, alarms, and other low-voltage smart home applications.

## Description

Syston 18/2 Thermostat Doorbell HVAC Heating Control Cable Wire, 18 AWG 2 Conductors 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated, UV Resistant RoHS for Low Voltage Applications Use: desertcart.com: Tools & Home Improvement

Review: Love it - Put a new thermostat in my house and needed five wires instead of just two that I had pulled through the wall perfectly hooked up perfectly and has been working for the last 2 months perfectly running my thermostat and my furnace., Good quality easy to install, length as described, very durable,
Review: Thick and solid copper in a white jacket. - Nice and heavy duty doorbell or thermostat wire. I actually only needed 18-2 wire, but this was a very good price for 18-3, which will leave me an unused wire remaining as an option if there’s a need in the future. I had two house projects to sort, one with the outdoor AC unit, and the other with our ring doorbell, which, as it turns out the existing wiring was fine and I just had to replace the transformer. If you’re shopping this kind of wire for your furnace, you should get at least 18–7. Ecobee and others utilize additional wires for separate power and other functions. If you have to run a wire anyway, I would run one with plenty of options for future tech. I bought this for a ring doorbell, thinking I had an electrical short in the existing house wiring, so I really only needed 18-2, but again, running the wire is the hardest part, so may as well have at least one spare conductor that you can cap off at both ends. The other reason I chose this is because almost all thermostat wire is brown, and when you start mixing different leads back at the control board, having the actual jacketed wire a different color is very helpful with keeping everything straight. I will use a chunk off the spool to run a new line out to our AC unit since the current mix of wires was confusing (when recently installing an Ecobee) because everything was brown and I had to trace the wires out to where they go. That will be much easier if I ever have to revisit these jobs, with a clear color difference in the wiring “bundles”.

## Features

- This 18 AWG cable Applications: Wiring of thermostat controls, heating & air Conditioning equipment, doorbells, ouch-plate systems, burglar alarms, intercom systems, annunciator and bell systems, remote control units, signal systems and other low-voltage applications.
- Pure Copper Conductors: Our thermostat cable is built with solid pure copper conductors, providing maximum conductivity and reliability to ensure that your systems run smoothly.
- 300V Low-Voltage Thermostat Cable (CL3 Rated): 300V rating ensures superior insulation and a high safety margin for low-voltage use, making it ideal for thermostats, security systems, and audio/visual installations while complying with Class 3 (100VA) power-limited standards.
- Installation-Friendly Design: With its round, slick jacket and smooth edges, our cable is easy to pull through rough corners and edges. The jacket also features a rip cord for effortless removal during installation.
- Sunlight Resistant and RoHS Compliant: Our cable is designed for both indoor and outdoor use, complying with the UL 1581 sunlight resistance requirement for outdoor installations. It is also RoHS compliant, ensuring safety for the environment.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DBZ7TZPH |
| Best Sellers Rank | #7,239 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #37 in Electrical Wire |
| Brand | Syston Cable Technology |
| Brand Name | Syston Cable Technology |
| Color | red |
| Customer Reviews | 4.6 out of 5 stars 147 Reviews |
| Gauge | 18.0 |
| Manufacturer | SYSTON CABLE TECHNOLOGY |
| Material | Copper |
| Material Type | Copper |
| Number Of Wires | 2 |
| Number of Cable Strands | Multi Strand |
| Strands | Multi Strand |
| Unit Count | 100.0 Feet |
| Voltage | 300 Volts |

## Product Details

- **Brand:** Syston Cable Technology
- **Color:** red
- **Gauge:** 18.0
- **Material:** Copper
- **Number of Cable Strands:** Multi Strand

## Images

![Syston 18/2 Thermostat Doorbell HVAC Heating Control Cable Wire, 18 AWG 2 Conductors 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated, UV Resistant RoHS for Low Voltage Applications Use - Image 1](https://m.media-amazon.com/images/I/61pcu6C9IgL.jpg)
![Syston 18/2 Thermostat Doorbell HVAC Heating Control Cable Wire, 18 AWG 2 Conductors 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated, UV Resistant RoHS for Low Voltage Applications Use - Image 2](https://m.media-amazon.com/images/I/71-WnzwD+WL.jpg)
![Syston 18/2 Thermostat Doorbell HVAC Heating Control Cable Wire, 18 AWG 2 Conductors 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated, UV Resistant RoHS for Low Voltage Applications Use - Image 3](https://m.media-amazon.com/images/I/71Bx-Y+2UvL.jpg)
![Syston 18/2 Thermostat Doorbell HVAC Heating Control Cable Wire, 18 AWG 2 Conductors 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated, UV Resistant RoHS for Low Voltage Applications Use - Image 4](https://m.media-amazon.com/images/I/71RxDA6e-QL.jpg)
![Syston 18/2 Thermostat Doorbell HVAC Heating Control Cable Wire, 18 AWG 2 Conductors 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated, UV Resistant RoHS for Low Voltage Applications Use - Image 5](https://m.media-amazon.com/images/I/71xVl3anacL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love it
*by A***R on December 28, 2025*

Put a new thermostat in my house and needed five wires instead of just two that I had pulled through the wall perfectly hooked up perfectly and has been working for the last 2 months perfectly running my thermostat and my furnace., Good quality easy to install, length as described, very durable,

### ⭐⭐⭐⭐⭐ Thick and solid copper in a white jacket.
*by M***. on June 14, 2025*

Nice and heavy duty doorbell or thermostat wire. I actually only needed 18-2 wire, but this was a very good price for 18-3, which will leave me an unused wire remaining as an option if there’s a need in the future. I had two house projects to sort, one with the outdoor AC unit, and the other with our ring doorbell, which, as it turns out the existing wiring was fine and I just had to replace the transformer. If you’re shopping this kind of wire for your furnace, you should get at least 18–7. Ecobee and others utilize additional wires for separate power and other functions. If you have to run a wire anyway, I would run one with plenty of options for future tech. I bought this for a ring doorbell, thinking I had an electrical short in the existing house wiring, so I really only needed 18-2, but again, running the wire is the hardest part, so may as well have at least one spare conductor that you can cap off at both ends. The other reason I chose this is because almost all thermostat wire is brown, and when you start mixing different leads back at the control board, having the actual jacketed wire a different color is very helpful with keeping everything straight. I will use a chunk off the spool to run a new line out to our AC unit since the current mix of wires was confusing (when recently installing an Ecobee) because everything was brown and I had to trace the wires out to where they go. That will be much easier if I ever have to revisit these jobs, with a clear color difference in the wiring “bundles”.

### ⭐⭐⭐⭐⭐ Worth the money
*by A***N on December 5, 2025*

High quality cable. Worked great for installing a 24v doorbell.

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-14*