SmartZone-4X Control – 4 zone controller KIT w/ Temp sensor – Universal Replacement for honeywell zoning panel truezone hz432 & more

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Ecojay Smartzone 4X
SmartZone Wiring Real-Time – FAST
Replacing Honeywell Zoning System (Truezone HZ322) with Ecojay SmartZone ZS-4X
ECOJAY SmartZone – 4Zone
Ecojay SmartZone – In the box
SmartZone-2L display mode – the simplest HVAC Zone Controller available
Ecojay SmartZone can replace any model zone controller
SmartZone-2X: The Ultimate 2 Zone HVAC Controller Kit for Efficient Climate Control
SmartZone-2L ECOJAY Introduction
ECOJAY SmartZone Interactive Demo

SmartZone-4X Control - 4 zone controller KIT w/ Temp sensor - Universal Replacement for honeywell zoning panel truezone hz432 & more

Rating:

Amazon Price: $269.99 (as of November 10, 2025 5:55 pm – Details). Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the Amazon site at the time of purchase will apply to the purchase of this product.

Brand: ECOJAY
Manufacturer: ECOJAY

Features

4 ZONES up to 20 ZONES
Universally Compatible – Works with any system (Gas, Elect, Heat Pump)
Use any thermostats – nest, ecobee, honeywell, etc.
EASY to install, Simple to use
Built-In Fresh Air control, Economizer and other exclusive features

Manufacturer Info

PartNumber: ZS4X-2.0
Model: ZS4X-2.0

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This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases