---
product_id: 562848217
title: "tekmar | 518 | Thermostat | 1H/0C | Non-Programmable"
brand: "tekmar"
price: "€ 154.52"
currency: EUR
in_stock: false
reviews_count: 3
category: "Tekmar"
url: https://www.desertcart.ie/products/562848217-tekmar-518-thermostat-1h-0c-non-programmable
store_origin: IE
region: Ireland
---

# Auxiliary sensor for outdoor/floor temp Precision PWM heating control Backlit easy-read display tekmar | 518 | Thermostat | 1H/0C | Non-Programmable

**Brand:** tekmar
**Price:** € 154.52
**Availability:** ❌ Out of Stock

## Summary

> 🌡️ Stay ahead of the chill with precision heating control!

## Quick Answers

- **What is this?** tekmar | 518 | Thermostat | 1H/0C | Non-Programmable by tekmar
- **How much does it cost?** € 154.52 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/562848217-tekmar-518-thermostat-1h-0c-non-programmable)

## Best For

- tekmar enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Upgrade:** Direct replacement for tekmar 507/508 with optional adaptor plate for easy single-gang box install.
- • **Sleek Modern Control:** Minimalist push-button interface with remote control compatibility for intuitive operation.
- • **Readability Meets Style:** Large, backlit display ensures you never miss your ideal temp—even in low light.
- • **Smart Sensor Integration:** Auto-detects auxiliary sensors to monitor outdoor, floor, or remote room temps seamlessly.
- • **Effortless Temperature Mastery:** Pulse Width Modulation tech delivers pinpoint heating accuracy for ultimate comfort.

## Overview

The tekmar 518 Thermostat is a modern, non-programmable hydronic heating controller featuring Pulse Width Modulation for precise temperature regulation. It includes a backlit display for easy reading, supports auxiliary sensors for outdoor or floor temperature monitoring, and offers simple push-button controls. Designed as a direct upgrade for tekmar 507/508 models, it ensures effortless installation and reliable performance in radiant floor heating systems.

## Description

The Thermostat 518 accurately controls the room temperature for a hydronic heating zone using Pulse Width Modulation (PWM) technology. Simple up and down buttons and a display with large type make this thermostat easy to read and use. The 518 automatically detects a single auxiliary sensor to measure either outdoor, floor or remote room temperature. This easy to install thermostat is a direct replacement for tekmar Thermostats 507 and 508. An optional Adaptor Plate 012 is available which allows the thermostat to be installed onto a single gang electrical box.

Review: Works great! I converted from a Watts Radiant thermostat to this and you just have to carefully match your wiring and it’s very compatible. Suggest downloading a manual for what thermostat you have, taking photos before removing from the wall, and then drawing it out. This is a basic unit showing floor sensor heat and room temp. That’s it and all i needed.
Review: This new thermostat worked just fine. I would like to have had C. display rather than F.

## Features

- Auto Heating Cycle
- Auxiliary Sensor Input
- Backlight
- Freeze Protection
- Outdoor & Floor Temperature Display
- Brand: tekmar
- Has backlight: True
- Control type: Button Control
- Controller type: Push Button, Remote
- Style: Modern

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00EWONLZQ |
| Batteries required | No |
| Customer Reviews | 4.3 4.3 out of 5 stars (18) |
| Date First Available | 6 December 2016 |
| Included components | thermostat |
| Item Weight | 231 g |
| Item model number | 518 |
| Package Dimensions | 23 x 14.7 x 3.2 cm; 231.33 g |
| Specific uses | Radiant Floor Heating |

## Product Details

- **Brand:** tekmar
- **Colour:** White
- **Controller type:** Push Button, Remote
- **Special features:** Programmable
- **Specific uses for product:** Radiant Floor Heating

## Images

![tekmar | 518 | Thermostat | 1H/0C | Non-Programmable - Image 1](https://m.media-amazon.com/images/I/41zGBfd27QL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 22 March 2025*

Works great! I converted from a Watts Radiant thermostat to this and you just have to carefully match your wiring and it’s very compatible. Suggest downloading a manual for what thermostat you have, taking photos before removing from the wall, and then drawing it out. This is a basic unit showing floor sensor heat and room temp. That’s it and all i needed.

### ⭐⭐⭐⭐⭐ Review
*by U***T on 2 February 2023*

This new thermostat worked just fine. I would like to have had C. display rather than F.

### ⭐⭐ Review
*by A***R on 3 May 2023*

I am an elderly woman and my heating in the basement would not work due to my thermostat not working. Purchased this thermostat and it is very complicated to program. Had a plumber come to check my heating to make sure it worked- he charged $250 and programmed the thermostat so that the heat went to 30C and I could not decrease the heat so and the plumber returned and found that he had programmed it incorrectly.

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---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-25*