Heatit Z-Temp3 Battery-operated Thermostat 800 series

Main Features

Wireless Z-Wave 800 series connectivity ensures robust smart-home compatibility with S0 and S2 encryption.

Battery operated (2× AAA) as standard; also supports optional external power input for flexible installation.

Three operating modes: Heat, Cool, and Eco, allowing control of different heating or cooling scenarios.

Built-in sensors measure both temperature and humidity, enabling more intelligent room-climate management.

“Master thermostat” capability: you can set one unit to control multiple other units or relays via association groups (up to 10 nodes per group).

Advanced regulation functions such as hysteresis (0.3-3.0 °C), PWM/pulse-width modulation control and open-window detection to cut off heating when a window is open.

Child-lock / lock mode to protect settings, plus firmware updates over-the-air (OTA) to ensure the device stays up to date.

Fits standard European junction boxes or can be mounted freely (wall or shelf), making it ideal for renovations or existing buildings.

Description

The Heatit Z‑Temp3 Battery‑operated Thermostat 800 Series is a sleek wireless thermostat designed to control water-based heating systems via the Z-Wave 800 platform. It runs on two standard AAA batteries (or can optionally be powered externally) and communicates wirelessly with relays or other thermostats through your Z-Wave network. Thanks to its battery operation and wireless communication, it’s particularly well suited for retrofits or renovations where running wires would be difficult or costly. Its compact design fits into standard System 55 frames or can be surface-mounted, so it integrates easily into modern interior layouts. The user interface is intuitive, with a clear LCD screen, backlight, and front-panel buttons for direct control if desired.

Technical Specifications

Specification	Details
Protocol / IoT standard	Z-Wave (868.4 MHz, EU) – Z-Wave 800 series
Power supply	2 × AAA batteries (1.5 V each) or external 2.7-3.3 VDC input
Regulation temperature range	5 °C to 40 °C
Temperature sensitivity	± 0.5 °C
Hysteresis range	0.3 °C to 3.0 °C (default 0.5 °C)
Humidity measurement range	10% to 85% RH
Mesh network / associations	Up to 10 nodes per association group
Open window detection	Yes
Display	LCD with backlight
Mounting type	Stand-alone, European junction box, surface mount
Protection class (IP rating)	IP21
Ambient temperature (storage)	–30 °C to 70 °C
RF range (minimum)	40 m
Dimensions (L×W×H)	84 × 84 × 22 mm
Certification / compliance	CE, Z-Wave Plus, REACH, RED, RoHS