---
product_id: 56943723
title: "ESRTERFW Wireless Electronic Room Thermostat with LCD Display"
brand: "esi - energy saving innovation controls"
price: "$209.57"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/56943723-esrterfw-wireless-electronic-room-thermostat-with-lcd-display
store_origin: EC
region: Ecuador
---

# Quick 2-wire installation Wireless connectivity Battery-powered LCD display ESRTERFW Wireless Electronic Room Thermostat with LCD Display

**Brand:** esi - energy saving innovation controls
**Price:** $209.57
**Availability:** ✅ In Stock

## Summary

> 🌡️ Stay ahead of the curve with smart, wireless climate control!

## Quick Answers

- **What is this?** ESRTERFW Wireless Electronic Room Thermostat with LCD Display by esi - energy saving innovation controls
- **How much does it cost?** $209.57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/56943723-esrterfw-wireless-electronic-room-thermostat-with-lcd-display)

## Best For

- esi - energy saving innovation controls enthusiasts

## Why This Product

- Trusted esi - energy saving innovation controls brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Energy Smart:** TPI technology optimizes heating cycles, saving energy and boosting SAP points.
- • **Effortless Setup:** Quick 2-wire installation with industry-standard back plate for seamless integration.
- • **Wireless Freedom:** Cut the cords and control your comfort with reliable wireless thermostat technology.
- • **Precision Comfort:** High temperature accuracy ensures your space is always perfectly cozy.
- • **Clear & Convenient:** Battery-powered LCD display offers crisp, easy-to-read room temperature anytime.

## Overview

The ESRTERFW Wireless Electronic Room Thermostat combines quick 2-wire installation and wireless convenience with a high-accuracy battery-powered LCD display. Featuring advanced TPI technology, it delivers precise temperature control while optimizing energy efficiency, making it an ideal upgrade for modern HVAC systems.

## Description

ESRTERFW Wireless Electronic Room Thermostat with LCD Display

## Features

- Quick 2 wire installation with Volt Free contacts, wireless thermostat & industry standard back plate for quick & easy installation.
- High temperature accuracy with battery powered LCD display which clearly shows room temperature.
- TPI Technology, providing potential energy savings and SAP points
- Model number: ESRTERFW

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | ESI - Energy Saving Innovation Controls Ltd |
| Part Number | ESRTERFW |
| Product Dimensions | 25.4 x 11.4 x 4.8 cm; 430 g |
| Batteries | 2 AA batteries required. (included) |
| Item model number | ESRTERFW |
| Colour | Multicolor |
| Style | Simple |
| Shape | Rectangular |
| Power Source | Battery Powered |
| Voltage | 230 Volts |
| Item Package Quantity | 1 |
| Display style | LCD |
| Plug profile | Surface Mount |
| Certification | energy |
| Special Features | Wireless |
| Usage | Boiler |
| Included Components | ESRTERFW |
| Batteries included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Item Weight | 430 g |

## Product Details

- **Brand:** ESI - Energy Saving Innovation Controls
- **Model name:** Wireless Electronic Room Thermostat
- **Controller type:** Push Button
- **Special feature:** Wireless
- **Colour:** Multicolor
- **Specific uses for product:** Boiler
- **Temperature Control Type:** Digital
- **Connectivity technology:** Wireless
- **Included components:** ESRTERFW
- **Power source:** Battery Powered

## Images

![ESRTERFW Wireless Electronic Room Thermostat with LCD Display - Image 1](https://m.media-amazon.com/images/I/51hF4ecUKRL.jpg)

## Questions & Answers

**Q: Does this work with an oil fired combi boiler?**
A: Yes it does

**Q: How long do the batteries last**
A: I haven't changed it since I brought it !!! So I hope that helps ? If you buy a good battery they could last for a good 2:years or more

**Q: How do you change from Fahrenheit to Celsius?**
A: Hi I am thinking of buying one of these, the installation instructions show DPI switch settings, the bottom section is to adjust F or C , the left is for F and the right for C. It shows you the diagram on the manufactures web site I hope this helps.

**Q: how do you remove  the dial off?**
A: I presume this is to access the black pairing button.
The dial just gently prises straight off the spindle with small screwdriver at right hand side. It is a simple push fit.

## Frequently Bought Together

- ESI - Energy Saving Innovation Controls ESRTERFW Wireless Electronic Room Thermostat with LCD Display, Multicolor
- ESI - Energy Saving Innovation Controls ESRTP4RF+ Wireless Programmable Room Thermostat, White

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ec/products/56943723-esrterfw-wireless-electronic-room-thermostat-with-lcd-display](https://www.desertcart.ec/products/56943723-esrterfw-wireless-electronic-room-thermostat-with-lcd-display)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-24*