--- product_id: 390539726 title: "ESRTERFW Wireless Electronic Room Thermostat with LCD Display, Multicolor" brand: "esi - energy saving innovation controls" price: "FREE" currency: SGD in_stock: false category: "Esi Energy Saving Innovation Controls" url: https://www.desertcart.sg/products/390539726-esrterfw-wireless-electronic-room-thermostat-with-lcd-display-multicolor store_origin: SG region: Singapore --- # Wireless 2-wire quick install High-precision ±0.6°C LCD display Energy-saving TPI tech ESRTERFW Wireless Electronic Room Thermostat with LCD Display, Multicolor **Brand:** esi - energy saving innovation controls **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 🔥 Stay in control, save energy, and never sweat the setup! ⚡ ## Quick Answers - **What is this?** ESRTERFW Wireless Electronic Room Thermostat with LCD Display, Multicolor by esi - energy saving innovation controls - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/390539726-esrterfw-wireless-electronic-room-thermostat-with-lcd-display-multicolor) ## 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 - • **Smart Energy Savings:** TPI technology delivers up to 10% more savings than traditional thermostats. - • **Battery Powered Freedom:** Wireless, battery-operated design eliminates wiring hassles and boosts flexibility. - • **Effortless Wireless Setup:** Quick 2-wire installation with industry-standard back plate for seamless integration. - • **Clear Multicolor LCD Display:** Instant feedback with flame icon and temperature updates for intuitive use. - • **Precision Temperature Control:** Accurate ±0.6°C readings ensure consistent comfort without energy waste. ## Overview The ESI ESRTERFW Wireless Electronic Room Thermostat combines sleek modern design with advanced TPI technology to deliver precise temperature control and up to 10% energy savings. Featuring a battery-powered wireless setup and a clear multicolor LCD display, it offers effortless installation and intuitive operation, making it the smart upgrade for any professional space aiming to optimize comfort and efficiency. ## Description Product Description The ESRTERFW is a battery powered wireless Electronic Room Thermostat that is economical and simple to use. Simply turn the control dial to the desired temperature to control the room temperature. The ESRTERFW includes a LCD display which displays the current room temperature. When the temperature is adjusted, the LCD display will briefly display the revised temperature before returning to the current room temperature. A small flame symbol will appear on the LCD display when the system is being turned ON; when the system is being turned OFF, the flame symbol will no longer show on the LCD display. The modern and stylish range of Electronic Room Thermostats from ESi Controls are designed to outperform many older thermostats and should be able to produce savings in the order of 10% over and above those achieved by traditional units using older technology. The temperature control accuracy of +/- 0.6C will reduce the temperature swing that normally occurs with older style thermostats. The ESRTERFW receiver requires a live and neutral and has Volt Free contacts and the wireless thermostat (transmitter) is battery powered with an industry standard back plate for quick and very easy installation. A simple to use, modern replacement for traditional room thermostats with real energy savings. Set Contains: 1 x Wireless Electronic Room Thermostat, 1 x Receiver ## 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 | |---------------|-------| | ASIN | B00QGKSTCY | | ASIN | B00QGKSTCY | | Additional Features | Wireless | | Backlight | Yes | | Batteries | 2 AA batteries required. (included) | | Brand Name | ESI - Energy Saving Innovation Controls | | Color | Multicolor | | Connectivity Protocol | Wi-Fi | | Connectivity Technology | Wireless | | Control Method | App | | Control Type | Button Control | | Controller Type | Push Button | | Date First Available | 9 February 2015 | | Display Type | LCD | | Included Components | ESRTERFW | | Is Discontinued By Manufacturer | No | | Item Type Name | Wireless Electronic Room Thermostat with LCD Display | | Item model number | ESRTERFW | | Manufacturer | ESI - Energy Saving Innovation Controls Ltd | | Manufacturer | ESI - Energy Saving Innovation Controls Ltd | | Manufacturer Part Number | ESRTERFW | | Model Name | Wireless Electronic Room Thermostat | | Model Number | ESRTERFW | | Mounting Type | Wall Mount | | Number of Batteries | 2 AA batteries required. (included) | | Number of Items | 2 | | Power Source | Battery Powered | | Product Dimensions | 25.4 x 11.4 x 4.8 cm; 430 g | | Product Style | Modern | | Shape | Rectangular | | Specific Uses For Product | Boiler | | Specification Met | energy | | Temperature Control Type | Digital | | UPC | 095225343605 | | Voltage | 230 Volts | ## Product Details - **Brand:** ESI - Energy Saving Innovation Controls - **Colour:** Multicolor - **Controller type:** Push Button - **Model name:** Wireless Electronic Room Thermostat - **Special features:** Wireless ## Images ![ESRTERFW Wireless Electronic Room Thermostat with LCD Display, Multicolor - Image 1](https://m.media-amazon.com/images/I/51hF4ecUKRL.jpg) ## 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.sg/products/390539726-esrterfw-wireless-electronic-room-thermostat-with-lcd-display-multicolor](https://www.desertcart.sg/products/390539726-esrterfw-wireless-electronic-room-thermostat-with-lcd-display-multicolor) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-10-03*