---
product_id: 208811258
title: "OJ Microline Thermostat with Built-in GFCI UDG4-4999. Touch Screen Programmable Thermostat for Radiant Floor Heating System, with Dual Sensing and Dual Voltage Capabilities. Includes Floor Sensor"
brand: "oj electronics"
price: "€ 324.94"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/208811258-oj-microline-thermostat-with-built-in-gfci-udg4-4999-touch
store_origin: NL
region: Netherlands
---

# Dual voltage 120V/240V power 3.5" responsive touchscreen Dual sensing air & floor temp OJ Microline Thermostat with Built-in GFCI UDG4-4999. Touch Screen Programmable Thermostat for Radiant Floor Heating System, with Dual Sensing and Dual Voltage Capabilities. Includes Floor Sensor

**Brand:** oj electronics
**Price:** € 324.94
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your floor heating game with smart, sleek, and safe control! 🌡️

## Quick Answers

- **What is this?** OJ Microline Thermostat with Built-in GFCI UDG4-4999. Touch Screen Programmable Thermostat for Radiant Floor Heating System, with Dual Sensing and Dual Voltage Capabilities. Includes Floor Sensor by oj electronics
- **How much does it cost?** € 324.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/208811258-oj-microline-thermostat-with-built-in-gfci-udg4-4999-touch)

## Best For

- oj electronics enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Built-in Class A GFCI protects your home with certified wet-room safety and child lock features.
- • **Smart Comfort Control:** Intuitive 7-day programmable schedule with adaptive self-learning tech to optimize warmth and cut energy bills.
- • **Sleek Modern Interface:** Vibrant 3.5" color touchscreen that elevates your home’s aesthetic while making adjustments effortless.
- • **Versatile Floor Compatibility:** Perfect for tile, marble, carpet, laminate, wood, and concrete floors with included floor sensor and limit settings.
- • **Energy Insights at Your Fingertips:** Power logging sends detailed energy usage reports directly to your PC or mobile device for smarter consumption.

## Overview

The OJ Microline Thermostat UDG4-4999 is a cutting-edge programmable touchscreen thermostat designed for electric radiant floor heating. Featuring dual voltage (120V/240V) and dual sensing (air and floor), it supports multiple floor types with precise temperature control. Its adaptive self-learning system maximizes comfort while reducing energy costs. Safety is ensured with a built-in Class A GFCI and wet-room certification. Additional perks include child lock, vacation mode, open window detection, and detailed power usage logging accessible via PC or mobile. Backed by a 3-year warranty, it’s the smart upgrade for modern, efficient home heating.

## Description

OJ Microline Thermostat with Built-in GFCI UDG4-4999. Touch Screen Programmable Thermostat for Radiant Floor Heating System, with Dual Sensing and Dual Voltage Capabilities. Includes Floor Sensor

## Features

- INTUITIVE, TOUCHSCREEN Programmable thermostat with Class A GFCI (Ground Fault Circuit Interrupter), for Electric Radiant Floor Heating Systems. Dual voltage (120V/240V) Dual Sensing (Air/Floor). Suitable for Tile, Marble, Carpet, Concrete Laminate and Wood floors.
- PROGRAMMABLE - OJ's Intuitive 7-day program helps provide maximum comfort, while reducing operating costs. Programming is made easy with the OJ's new Install Wizard and Interactive Touchscreen. NEW Adaptive function offers a self-learning, self-adjusting operating system - maintaining set temperatures while adjusting run time to help reduce energy consumption.
- 3.5" RESPONSIVE TOUCH COLOR SCREEN with a sleek and modern design blends seamlessly into your surrounding decor. Tired of your old controller - Upgrade now to improve comfort levels, reduce running costs and compliment your Decor.
- ADITIONAL FEATURES INCLUDE - Child Lock, Vacation Mode, OPEN Window Mode, temporary overrides, power logging and more. Power logging provides detailed energy usage reports direct to your PC or mobile device - putting the control where it belongs. OJ Microline Floor Heating Thermostats are C-UL-us Listed, Certified for Wet Room installations and come with a 3-Year limited factory Warranty.
- TECHNICAL INFO - Load: 15Amps (1800w@120v), (3600w@240v), with Ability to control secondary relays. Floor limit range: +41 to +104°F (+5 to +40°C) Amb. Temp. range +32 to +104°F (0 to +40°C). Includes floor sensor and floor limiting features for laminate and wood floors.

## Product Details

- **Brand:** OJ Electronics
- **Controller Type:** Floor Heating Thermostat 120V and 240V
- **Special Feature:** Programmable
- **Color:** White
- **Specific Uses For Product:** Floor Heating

## Images

![OJ Microline Thermostat with Built-in GFCI UDG4-4999. Touch Screen Programmable Thermostat for Radiant Floor Heating System, with Dual Sensing and Dual Voltage Capabilities. Includes Floor Sensor - Image 1](https://m.media-amazon.com/images/I/517S-P2wRjL.jpg)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-15*