XY-DTH1 Digital Temperature & Humidity Control Module Dual Relay
XY-DTH1 Digital Temperature & Humidity Control Module Dual Relay
XY-DTH1 Digital Dual-Output Temperature & Humidity Control Board
Take precise command of your environment with the XY-DTH1 Temperature and Humidity Control Module. This high-precision, dual-channel control board automatically manages both temperature and humidity simultaneously — switching heating, cooling, humidifying, or dehumidifying equipment on and off with pinpoint accuracy. Whether you're maintaining a greenhouse, server room, grow tent, incubator, wine cellar, or industrial enclosure, this compact controller delivers reliable automated climate management.
Made in Mainland China.
Key Features
- Dual Independent Relay Outputs — Separate relays for temperature and humidity control, each rated up to 10A
- High Precision Control — 0.1°C and 0.1% RH resolution for accurate set-point regulation
- Auto Mode Recognition — Automatically detects Heating (H) / Cooling (C) mode for temperature, and Humidification (E) / Dehumidification (d) mode for humidity based on your start/stop settings
- Wide Measurement Range — Temperature: -20°C to 60°C | Humidity: 0% to 100% RH
- Calibration Functions — Temperature correction: ±10.0°C | Humidity correction: ±10.0% RH to compensate for long-term drift
- UART Remote Control — Read and set all parameters remotely; real-time temperature/humidity and relay status reported every 1 second
- Integrated Sensor Probe — Built-in sensor for streamlined installation
- Visual Indicators — Red LED for temperature relay, Green LED for humidity relay; flashing "OUT" display when any relay is active
- Easy Parameter Setting — Intuitive button interface with press-and-hold and double-click shortcuts
Specifications
| Model | XY-DTH1 |
|---|---|
| Temperature Range | -20°C to 60°C |
| Humidity Range | 0% to 100% RH |
| Control Accuracy | 0.1°C / 0.1% RH |
| Sensor Type | Integrated probe |
| Output Type | Dual relay output |
| Max Output Capacity | 10A per relay |
| Communication | UART (remote read/write) |
| Product Weight | 144g |
| Origin | Mainland China |
How It Works
Temperature Control
Set a start temperature and a stop temperature. The module automatically determines the correct mode:
- Cooling Mode (C): Start temp > Stop temp — relay activates when temperature reaches or exceeds the start point; deactivates at or below stop point.
- Heating Mode (H): Start temp < Stop temp — relay activates when temperature drops below the start point; deactivates when temperature reaches or exceeds stop point.
To configure: hold TM+ (>3 sec) to set start temperature; hold TM- (>3 sec) to set stop temperature. Settings auto-save after 6 seconds of inactivity.
Humidity Control
Set a start humidity and a stop humidity. The module automatically determines:
- Dehumidification Mode (d): Start humidity > Stop humidity — relay activates when humidity meets or exceeds start point.
- Humidification Mode (E): Start humidity < Stop humidity — relay activates when humidity drops below start point.
To configure: hold RH+ (>3 sec) for start humidity; hold RH- (>3 sec) for stop humidity. Settings auto-save after 6 seconds.
Calibration & Advanced Settings
- Double-click TM+ to enter calibration mode. Switch between temperature (OFE) and humidity (RH) correction using TM-; adjust values with RH+/RH-. Double-click TM+ to exit and save.
- Short-press TM- to toggle temperature relay enable on/off.
- Short-press RH- to toggle humidity relay enable on/off.
Applications
- Greenhouse & grow tent climate automation
- Egg incubators & reptile enclosures
- Wine cellars & fermentation chambers
- Server room & electronics cabinet climate management
- Industrial storage environment monitoring & control
- DIY smart home automation projects
Package Includes
- 1× XY-DTH1 Temperature & Humidity Control Module
Note: Colors may appear slightly different due to monitor settings. Please allow 1–3cm variance due to manual measurement.
For more information on safe electrical practices and component ratings, visit the U.S. Consumer Product Safety Commission (CPSC). For OSHA guidelines on electrical equipment in workplaces, see OSHA Electrical Safety.
Frequently Asked Questions
Q: Can the XY-DTH1 control both a heater and a humidifier at the same time?
A: Yes. The XY-DTH1 features two independent relay outputs — one dedicated to temperature control (heating or cooling) and one dedicated to humidity control (humidification or dehumidification). Both relays operate simultaneously and independently, so you can run a heater and a humidifier (or any combination of devices) at the same time without interference.
Q: What is the maximum load each relay can handle?
A: Each relay output is rated for a maximum of 10A. Always ensure the connected device's current draw does not exceed this limit. For higher-load equipment, use a separate contactor or relay module rated for the required current, and use the XY-DTH1's relay as a trigger signal.
Q: How do I connect and communicate with the module via UART?
A: The XY-DTH1 includes a UART interface that allows remote reading and writing of all parameters (start/stop temperature, start/stop humidity, correction values, relay enable). When real-time reporting is enabled, the module transmits current temperature, humidity, and relay status every 1 second to your connected terminal or microcontroller, making it ideal for data logging and automation integration.
Q: Does the module remember my settings after power is lost?
A: Yes. All configured parameters — including start/stop temperature, start/stop humidity, calibration values, and relay enable states — are automatically saved to non-volatile memory after 6 seconds of inactivity following any parameter change. Settings are retained even after power is disconnected.