---
product_id: 49288070
title: "ESI - Energy Saving Innovation Controls ESRTM Mechanical Room Thermostat"
brand: "witpoce"
price: "฿2164"
currency: THB
in_stock: true
reviews_count: 13
category: "Witpoce"
url: https://www.desertcart.co.th/products/49288070-esi-energy-saving-innovation-controls-esrtm-mechanical-room-thermostat
store_origin: TH
region: Thailand
---

# Quick 2-wire installation Volt free contacts for versatile use Durable mechanical dial control ESI - Energy Saving Innovation Controls ESRTM Mechanical Room Thermostat

**Brand:** witpoce
**Price:** ฿2164
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your comfort game with the ESRTM Mechanical Thermostat!

## Quick Answers

- **What is this?** ESI - Energy Saving Innovation Controls ESRTM Mechanical Room Thermostat by witpoce
- **How much does it cost?** ฿2164 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/49288070-esi-energy-saving-innovation-controls-esrtm-mechanical-room-thermostat)

## Best For

- witpoce enthusiasts

## Why This Product

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

## Key Features

- • **Universal Compatibility:** Ideal replacement for any 2 or 3 wire thermostat or new build—future-proof your space.
- • **Clear & Intuitive Control:** Large, easy-to-read adjustable dial puts precise temperature control at your fingertips.
- • **Effortless Setup in Minutes:** Quick 2-wire installation with easy-fit back plate means no fuss, no delays.
- • **Built to Last, Designed to Perform:** Reliable mechanical dial control ensures consistent comfort without tech headaches.
- • **Exceptional Value Without Compromise:** Get premium performance and durability without the premium price tag.

## Overview

The ESI ESRTM Mechanical Room Thermostat offers a straightforward, reliable temperature control solution with quick 2-wire installation and volt free contacts. Featuring a large, clear dial for easy manual adjustment, it’s a durable and cost-effective replacement for any 2 or 3 wire system or new build, designed to deliver consistent comfort with minimal hassle.

## Description

From the manufacturer ESI - Energy Saving Innovation Controls ESRTM Mechanical Room Thermostat Specification ESRTM details Room temperature dial. Thermostat. Surface or pattress mounted. Double insulated ESRTM. Suitable for systems with either a combination or normal boiler. Durability Reliable, simple and long lasting. Description Application Ideal replacement for any 2 or 3 wire thermostat or new build. Installation Quick 2 wire installation with Volt Free contacts and easy fit back plate.

Review: Good value and performance - I was looking for a thermostat as our 30 year old Honeywell had seen better days, I read so many reviews on different thermostats and decided to settle on this one, its very easy to install and operate, it resembles the Honeywell and is exactly the same as another well known brand without the hefty price tag. So if you are looking for a basic two wire thermostat then this in my opinion is the one to consider.
Review: Super stat - Works like a treat. Perfect.

## Features

- quick 2 wire installation with volt free contacts and easy fit back plate
- reliable, simple and durable traditional product with large, clear adjustable dial
- exceptional value and an ideal replacement for any 2 wire thermostat or new build

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00QGKSTD8 |
| Backlight | No |
| Best Sellers Rank | 112,965 in DIY & Tools ( See Top 100 in DIY & Tools ) 14 in Home Non-Programmable Thermostats |
| Brand Name | WITPOCE |
| Colour | Clear |
| Connectivity Protocol | BACnet MS/TP |
| Connectivity Technology | Wi-Fi |
| Control Method | Touch |
| Control Type | Dial Control |
| Controller Type | Mechanical knob, Push Button |
| Country Of Origin | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,141) |
| Display Type | Analog |
| Global Trade Identification Number | 00095225343544 |
| Included Components | Back plate, Volt Free contacts |
| Item Shape | Square |
| Item Type Name | Mechanical Room Thermostat |
| Manufacturer | ESI - Energy Saving Innovation Controls Ltd |
| Manufacturer Part Number | ESRTM |
| Model Number | ESRTM |
| Mounting Type | Wall Mount |
| Power Source | Corded Electric |
| Product Style | Modern |
| Special Features | Temperature Display |
| Specific Uses For Product | Boiler |
| Temperature Control Type | Manual |
| UPC | 095225343544 |
| Unit Count | 1.0 count |
| Voltage | 230 Volts |

## Product Details

- **Brand:** WITPOCE
- **Colour:** Clear
- **Connectivity technology:** Wi-Fi
- **Controller type:** Mechanical knob, Push Button
- **Included components:** Back plate, Volt Free contacts
- **Power source:** Corded Electric
- **Special feature:** Temperature Display
- **Specific uses for product:** Boiler
- **Temperature Control Type:** Manual
- **Voltage:** 230 Volts

## Images

![ESI - Energy Saving Innovation Controls ESRTM Mechanical Room Thermostat - Image 1](https://m.media-amazon.com/images/I/71THAVyK3fL.jpg)

## Questions & Answers

**Q: what cable do I need for this I know I need a wire**
A: Very low resistant two core wire.  
Mike

**Q: what is volt-free contacts means? Please explain because my central heating at the designated contacts for room thermostat I found 220v?**
A: Volt free contacts are also called ‘dry contacts’ and it means there is no voltage produced at the connections. Think of it like a light switch, the power comes along one wire, and the switch transfers it to the other wire, if you don’t have the ‘live’ wire connected, then the switch doesn’t have power to pass on

**Q: How easy to install**
A: Quite easy only two wires to the connected it's alright for a do-it-yourself

**Q: Why am I only aloud to buy 8 thermostats , I need 11**
A: Perhaps they only have 8 in stock????

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good value and performance
*by V***K on 14 February 2021*

I was looking for a thermostat as our 30 year old Honeywell had seen better days, I read so many reviews on different thermostats and decided to settle on this one, its very easy to install and operate, it resembles the Honeywell and is exactly the same as another well known brand without the hefty price tag. So if you are looking for a basic two wire thermostat then this in my opinion is the one to consider.

### ⭐⭐⭐⭐⭐ Super stat
*by S***X on 29 April 2025*

Works like a treat. Perfect.

### ⭐⭐⭐⭐ Basic thermostat
*by P***H on 17 April 2024*

This was to replace an expensive wireless thermostat when we moved house. It's a very basic thermostat which needs manually adjusting any time you want the temperature changed (eg when you go to bed or get up or go out). It's easy to install - it's just a simple make/break switch so needs no power supply. And it's easy to use - just turn the dial to the temperature you want your heating to achieve. But, if you're using it in your house, I would at least get a programmable one that you can set to turn up and down at different times of day. However, for the price, you can't complain

## Frequently Bought Together

- ESI - Energy Saving Innovation Controls ESRTM Mechanical Room Thermostat
- ESI ES2247B 2-Channel Multi Purpose Programmer (New Model)
- ESI - Energy Saving Innovation Controls ESRTERFW Wireless Electronic Room Thermostat with LCD Display, Multicolor

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-25*