Haozee HZ-SL04
Haozee Smart Zigbee Soil Moisture Sensor Instruction Manual
Model: HZ-SL04 | Brand: Haozee
1. Product Overview
The Haozee Smart Zigbee Soil Moisture Sensor is designed to help you monitor your plants' health by detecting ambient temperature and soil moisture levels in real-time. This device requires a Zigbee gateway (such as a TUYA HUB or Home Assistant with Zigbee2mqtt) to function and transmit data. It is suitable for various applications including greenhouses, gardens, lawns, and indoor plants.

Image: The Haozee Smart Zigbee Soil Moisture Sensor shown alongside a smartphone displaying its companion application, which visualizes humidity and temperature data. The sensor is partially inserted into soil with a small plant.
2. Setup and Installation
2.1. Components and Requirements
- Haozee Smart Zigbee Soil Moisture Sensor (1 unit)
- AAA Batteries (2x, not included)
- Zigbee Gateway (e.g., TUYA HUB, Home Assistant with Zigbee2mqtt)
- Compatible smartphone application (e.g., Smart Life app)

Image: The soil moisture sensor inserted into a potted plant, emphasizing the requirement for a Zigbee hub to operate.
2.2. Battery Installation
- Locate the battery compartment on the sensor handle.
- Open the compartment cover.
- Insert two AAA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.

Image: A detailed diagram illustrating the dimensions of the sensor and the location of the battery compartment, button, and LED indicator.
2.3. Pairing with Zigbee Gateway
The sensor must be paired with a compatible Zigbee gateway to transmit data. Follow the instructions provided with your specific Zigbee gateway and smartphone application (e.g., Smart Life app) for pairing. Typically, this involves putting the gateway into pairing mode and then activating the sensor (often by pressing a button on the sensor, as indicated in the battery compartment diagram).
- Ensure your Zigbee gateway is powered on and connected to your network.
- Open your Zigbee control application (e.g., Smart Life, Home Assistant).
- Initiate the device pairing process within the application.
- Press the pairing button on the Haozee sensor (located near the battery compartment) to activate its pairing mode.
- Confirm successful pairing in the application.
2.4. Sensor Placement
For accurate measurements, ensure the sensor is properly placed in the soil.
- Insert at least two-thirds of the sensor probe into the soil.
- Ensure the surface of the sensor probe is clean before insertion.
- Avoid placing the sensor directly in standing water or extremely dense, compacted soil.

Image: A person's gloved hands inserting the soil moisture sensor into a potted plant, demonstrating its use in a home gardening context.
3. Operating Instructions
3.1. Real-Time Monitoring
Once paired, the sensor will transmit real-time soil moisture and ambient temperature data to your connected Zigbee gateway and smartphone application. You can view current readings and historical data within the app.

Image: The soil moisture sensor placed among various plants in a garden, illustrating its remote monitoring capability.

Image: A series of smartphone screens displaying the application interface for real-time viewing of soil humidity and temperature data, including historical graphs.
3.2. Temperature Unit Switching
The sensor allows you to switch between Celsius (°C) and Fahrenheit (°F) temperature units. This can typically be done via a button on the sensor itself or within the connected smartphone application, depending on the specific Zigbee integration.

Image: A visual guide demonstrating how to switch between Celsius and Fahrenheit temperature readings using a button on the sensor and observing the change reflected in the mobile application.
3.3. Smart Scene Linkage (Automation)
Leverage the sensor's data to create automated routines within your smart home ecosystem. For example, you can link the soil moisture sensor with a smart watering timer to automatically water plants when the soil humidity drops below a set threshold.

Image: A balcony garden setup with various potted plants, illustrating an automated drip irrigation system that can be linked with the soil moisture sensor for smart watering.
4. Maintenance
4.1. Cleaning the Sensor
To ensure accurate readings and prolong the sensor's lifespan, regularly clean the probe section. Wipe off any accumulated soil, debris, or mineral deposits with a soft, damp cloth. Do not use abrasive cleaners or submerge the entire unit in water.
4.2. Battery Replacement
When the battery level is low (indicated in your smart home application), replace the two AAA batteries following the instructions in Section 2.2. Using high-quality alkaline batteries is recommended for optimal performance and longevity.
4.3. Durability and Material Care
The sensor is constructed from PC and ABS materials, offering good resistance to impact, heat, low temperatures, and chemicals. While designed for durability, avoid exposing the sensor to extreme physical shock or prolonged submersion in water beyond the probe section.

Image: The soil moisture sensor positioned among various potted plants, highlighting its construction from durable PC and ABS materials, allowing it to remain inserted in soil.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Sensor not reporting data / No readings in app |
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| Inaccurate moisture or temperature readings |
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| Battery reported as low, but sensor still functions |
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6. Specifications
| Feature | Detail |
|---|---|
| Model Number | HZ-SL04 |
| Product Dimensions | 1.42"W x 6.42"H (1.42 x 1.42 x 6.42 inches) |
| Item Weight | 0.07 Pounds (1.12 ounces) |
| Color | Turquoise |
| Manufacturer | Haozee |
| Connectivity | Zigbee (requires Zigbee gateway) |
| Power Source | 2x AAA Batteries (not included) |
| Materials | PC and ABS |
| Functions | Soil Moisture Detection, Ambient Temperature Detection |
6.1. What's in the Box
- 1x Haozee Smart Zigbee Soil Moisture Sensor
7. Support and Warranty
For technical support, product inquiries, or warranty information, please contact Haozee customer service through the platform where you purchased the product or visit the official Haozee store on Amazon. Keep your purchase receipt as proof of purchase.
While specific warranty details are not provided in this manual, standard consumer rights and return policies apply. Please refer to the seller's return policy for details (e.g., 30-day refund/replacement policy mentioned in product data).
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