--- product_id: 22405534 title: "SmartZone-4X Control - 4 zone controller KIT w/Temp sensor - Universal Replacement for honeywell zoning panel truezone hz432 & more" price: "€ 520.71" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.at/products/22405534-smartzone-4x-control-4-zone-controller-kit-w-temp-sensor store_origin: AT region: Austria --- # Universal compatibility 4 zones control Built-in temp sensor SmartZone-4X Control - 4 zone controller KIT w/Temp sensor - Universal Replacement for honeywell zoning panel truezone hz432 & more **Price:** € 520.71 **Availability:** ✅ In Stock ## Summary > 🌟 Upgrade Your HVAC IQ — Control Smarter, Live Cooler! ## Quick Answers - **What is this?** SmartZone-4X Control - 4 zone controller KIT w/Temp sensor - Universal Replacement for honeywell zoning panel truezone hz432 & more - **How much does it cost?** € 520.71 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/22405534-smartzone-4x-control-4-zone-controller-kit-w-temp-sensor) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Reliable Universal Replacement:** Direct upgrade for Honeywell Truezone HZ432 and other legacy panels, future-proof your HVAC system. - • **Plug & Play with Any Thermostat:** Seamlessly integrates with Nest, Ecobee, Honeywell, and more—no compatibility headaches. - • **Smart Eco Modes for Energy Savings:** Built-in Fresh Air control, Economizer, and ECO Mode optimize comfort while cutting costs. - • **Effortless Installation & Diagnostics:** LED indicators and digital displays make setup and troubleshooting a breeze—even for non-professionals. - • **Master Your Climate with 4-Zone Precision:** Control up to 4 independent zones for personalized comfort throughout your space. ## Overview The SmartZone-4X Control is a versatile 4-zone HVAC controller kit with a built-in temperature sensor, designed as a universal replacement for Honeywell Truezone HZ432 and similar panels. Compatible with gas, electric, and heat pump systems, it supports any thermostat brand including Nest and Ecobee. Featuring easy installation, LED diagnostics, and advanced eco-friendly modes like fresh air control and economizer, it delivers precise zone management and energy efficiency for modern smart homes and professional setups. ## Description Product description SmartZone is the smart choice Ecojay SmartZone residential & light commercial zoning Controllers are Easily configurable to satisfy a wide range of application and equipment requirements. Simple installation and setup make smartzone perfect for change outs, retro-fit, new installations and upgrades. brightly-lit LED DIGITAL DISPLAY provides comprehensive system status information and temperature from included supply sensor. color-coded LED's on all wiring connectors simplify troubleshooting. SmartZone maximizes equipment efficiency & protection with built-in ‘Time & Temperature’ staging controls. Universal compatibility means smartzone works with all equipment types, thermostats & dampers. Time-saving and exclusive features like fresh-air & push-in terminals make SmartZone the smart choice. SmartZone simplicity, reliability & features Economy Mode allows setback of all zones with the flip of a switch. When in eco mode, the system will only energize if zone 1 makes a call. This feature is great for vacations or if some of the zones are rarely used. Fresh air control allows control of an outside air damper and the system fan on a schedule to bring in fresh air in a prescribed amount. If fresh air control is required, Smartzone-4x has it covered with no additional controls required. Save $ Smartlink: expand to 20 zones by simply connecting multiple 4X boards together with the smartlink bus. Easiest & most cost effective system for more than 5 zones! Smart staging & limit protection – by using a proprietary time and temperature algorithm perfected over decades of programming, smartzone stages up and down in the most effective and efficient manner possible. 2nd stage lockout – by setting this dip switch, smartzone will only allow 2nd stage if more than one zone is calling Stage from zone 1 thermostat – allows for a multi-stage thermostat to be connected to zone 1 and control zoning instead of smartzone (not recommended in typical circumstances) Best technical support and documents (full color install guide included with SmartZone & best online documentation too) UP TO 20 ZONES Easiest expandable zoning system available. Using the SmartLink port, connect multiple 4 zone boards together to get as many as you need up to 20 zones. Review: Great Product, Great Support - I had a 20 year old Carrier Zone controller on its last legs. I bought this Ecojay SmartZone-4X controller to replace the old one at the point I upgraded the furnace and cooling condenser. Before I bought the EcoJay product, I called in to verify that it would work with my equipment. I got a slow, detailed, thorough discussion, and decided to buy it. After my new HVAC equipment was installed, I installed the zone controller. The product does exactly what the sales literature says it will. I've had it in use for about a month, and it's performed flawlessly. This controller board is exceptionally well-designed and manufactured. It's easy to install, and the documentation is easy to follow. The board has LED lights on it and digital displays that tell you exactly what the board is doing, making it a snap to diagnose problems and monitor the board's performance during the test-out phase of installation. The post-sale support is exceptional on all counts. Fast, competent, patient, free. I am not an HVAC professional, and I made two mistakes during installation which would have ruined a less-well-designed board. I called EcoJay's support line, and they helped me fix my problems in minutes. I recommend this product with no reservations. Review: A great product that works as advertised - I had an older Durozone Red-4 zone control system that failed and had to find a replacement. I found this product on desertcart and it is actually better than my original unit. Installation was pretty straight forward with the exception of wiring the dampers. The old dampers were also Durozone dampers and they had 5 terminals and required both 24AC wires to power the dampers. The Smartzone damper connections only contained the common terminal. Luckily, the Smartzone website provides wiring instructions for many types of dampers and I was able to power the dampers with no issues. I've looked at a lot of different options for zone controls and this solution was by far the cheapest and best solution I could find. ## Features - 4 ZONES up to 20 ZONES - Universally Compatible - Works with any system (Gas, Electric, Heat Pump) - Use any thermostats - nest, ecobee, honeywell, desertcart, sensi etc. - EASY to install, Simple to use - Built-In Fresh Air control, Economizer, ECO Mode, Humidity control and other exclusive features ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00V56AXG4 | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #212,576 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #52 in HVAC Controls | | Customer Reviews | 4.6 4.6 out of 5 stars (157) | | Date First Available | March 24, 2015 | | Included Components | SmartZone controller, Supply temperature sensor | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 1.3 pounds | | Item model number | ZS4X-2.0 | | Manufacturer | ECOJAY | | Part Number | ZS4X-2.0 | | Power Source | hardwire | | Product Dimensions | 9.5 x 5 x 1.75 inches | | Voltage | 24 Volts | ## Images ![SmartZone-4X Control - 4 zone controller KIT w/Temp sensor - Universal Replacement for honeywell zoning panel truezone hz432 & more - Image 1](https://m.media-amazon.com/images/I/71t+6KSCZJL.jpg) ![SmartZone-4X Control - 4 zone controller KIT w/Temp sensor - Universal Replacement for honeywell zoning panel truezone hz432 & more - Image 2](https://m.media-amazon.com/images/I/81raZgKs4zL.jpg) ![SmartZone-4X Control - 4 zone controller KIT w/Temp sensor - Universal Replacement for honeywell zoning panel truezone hz432 & more - Image 3](https://m.media-amazon.com/images/I/71j+Wpwvo5L.jpg) ![SmartZone-4X Control - 4 zone controller KIT w/Temp sensor - Universal Replacement for honeywell zoning panel truezone hz432 & more - Image 4](https://m.media-amazon.com/images/I/812f2wQCSxL.jpg) ![SmartZone-4X Control - 4 zone controller KIT w/Temp sensor - Universal Replacement for honeywell zoning panel truezone hz432 & more - Image 5](https://m.media-amazon.com/images/I/71D5X0KXArL.jpg) ## Questions & Answers **Q: Can you set this to open all the dampers when there isn't a call for heat? Then close the unneeded ducts when a zone calls for heat?** A: SmartZone controllers will open all zone dampers when there are no zone thermostats calling for heat, cool or fan only operation. When a call is made from any zone and there are no calls active from any other zone, SmartZone will close the non-calling zone dampers and the calling zone's dampers will remain open. **Q: is it compatable with carrier infinity units** A: Carrier Infinity is available in several model levels. If your model is using conventional 24VAC controls and thermostats then our SmartZone controls will be compatible. If your Infinity uses Carrier Infinity proprietary "communicating" controls then you will only be able to use Carrier's zoning control product for Infinity systems. **Q: How doe this link to other zones wireless T-stats if the primary is wired?** A: Each wireless thermostat will typically have a separate receiver component that is located at or near the zone controller. The receiver and thermostat are wirelessly linked to each other. The receiver is wired to the zone controller thermostat terminals and relays the wireless signals from the thermostat to the controller. With SmartZone, any wireless and/or wired thermostat can control the equipment. There is no primary thermostat with SmartZone controls unless you configure it to operate that way using our proprietary ECO mode feature. **Q: Can you set the number of devices calling before it operates the system?** A: Any single zone is able to run the hvac equipment by itself or in tandem with multiple zones calling for the same mode. We do not have a setting that allows the user to set the # of zones that must be calling for the same mode before the hvac equipment is energized. Our SmartZone controllers have an "ECO" mode feature that limits all zones except zone 1 from energizing the equipment. The other zones can make thermostat calls and when the equipment is energized they will be able to open their damper and participate in equipment call. The ECO feature is designed to reduce hvac equipment energy usage when the home or building is unoccupied. - Zoning Supply ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Product, Great Support *by T***R on July 3, 2021* I had a 20 year old Carrier Zone controller on its last legs. I bought this Ecojay SmartZone-4X controller to replace the old one at the point I upgraded the furnace and cooling condenser. Before I bought the EcoJay product, I called in to verify that it would work with my equipment. I got a slow, detailed, thorough discussion, and decided to buy it. After my new HVAC equipment was installed, I installed the zone controller. The product does exactly what the sales literature says it will. I've had it in use for about a month, and it's performed flawlessly. This controller board is exceptionally well-designed and manufactured. It's easy to install, and the documentation is easy to follow. The board has LED lights on it and digital displays that tell you exactly what the board is doing, making it a snap to diagnose problems and monitor the board's performance during the test-out phase of installation. The post-sale support is exceptional on all counts. Fast, competent, patient, free. I am not an HVAC professional, and I made two mistakes during installation which would have ruined a less-well-designed board. I called EcoJay's support line, and they helped me fix my problems in minutes. I recommend this product with no reservations. ### ⭐⭐⭐⭐⭐ A great product that works as advertised *by J***9 on November 11, 2024* I had an older Durozone Red-4 zone control system that failed and had to find a replacement. I found this product on Amazon and it is actually better than my original unit. Installation was pretty straight forward with the exception of wiring the dampers. The old dampers were also Durozone dampers and they had 5 terminals and required both 24AC wires to power the dampers. The Smartzone damper connections only contained the common terminal. Luckily, the Smartzone website provides wiring instructions for many types of dampers and I was able to power the dampers with no issues. I've looked at a lot of different options for zone controls and this solution was by far the cheapest and best solution I could find. ### ⭐⭐⭐⭐⭐ WORKS GREAT... Customer Service was Even Better... *by P***. on July 3, 2025* I don't write many reviews. However, I feel I need to about this product and customer support. The system was very easy to wire up. Pretty Self explanatory. Directions were straight forward and easy to understand. However, I did have an issue but not with the ECOJAY System.. It was me being "A MAN" and not fully reading the instructions on the Thermostats I bought. Thinking I had everything correct.. I called ECOJAY support.. AMAZINGLY an actual person answered the phone and I didn't have to press 1 for English etc... I Immediately was talking with Jeff, Tech Support. Jeff was very helpful and knowledgeable of not only his product by other products as well.. He walked me through some troubleshooting to be sure what he knew what the issue was. My "Failure" to read and follow the Settup of the Thermostats was the issue. Jeff was very friendly and helpful. Thank you Jeff... ## Frequently Bought Together - SmartZone-4X Control - 4 zone controller KIT w/Temp sensor - Universal Replacement for honeywell zoning panel truezone hz432 & more - Elk TRG2440 24VAC, 40 VA AC Transformer with PTC Fuse - Zone Damper 8" Round Professional-Grade (HVAC Zoning) - Preminum replacement for Honeywell, EWC, Durozone, more (08) --- ## 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.at/products/22405534-smartzone-4x-control-4-zone-controller-kit-w-temp-sensor](https://www.desertcart.at/products/22405534-smartzone-4x-control-4-zone-controller-kit-w-temp-sensor) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-06-03*