COOKING-MALL HW-390 Capacitive Soil Moisture Sensor Module: Wide voltage range 3.3-5.5V DC
For the DIY gardener or smart agriculture enthusiast, this capacitive soil moisture sensor module helps you automate watering for your plants, from houseplants to greenhouse crops. While many sensors focus on basic detection, this one offers peace of mind by preventing overwatering and root rot with its corrosion-resistant, waterproof design.
The module provides a precise 0-3V output that integrates smoothly with Arduino, ESP32, or Raspberry Pi setups. You will notice it responds quickly to soil changes, giving you reliable data to trigger irrigation systems before your plants show stress. Its wide voltage range of 3.3-5.5V DC ensures compatibility with various projects, making it a dependable tool for smart farming and IoT applications.
Features
- Corrosion resistant design
- Waterproof coating on PCB
- Compatible with Arduino and Raspberry Pi
- Output voltage 0-3V
- Operating current 5 mA
- Wide voltage range 3.3-5.5V DC
General specs
- Brand: COOKING-MALL
- Model: HW-390
- Seller: Joom
- ID: 68ca2d7847f735014093ed64
- Type: Capacitive Soil Moisture Sensor Module
- Model: HW-390
- Features: Corrosion Resistant
- Quantity: 1-10
- Voltage Type: Wide Voltage
- Voltage Range: 3.3-5.5V DC
- First listed by seller: 11/15/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
Russia
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
COOKING-MALL HW-390 Wide voltage range 3.3-5.5V DC
|
Smart Soil Tester Zigbee wireless connectivity
|
Haozee HZ-SL04 White Real-time soil moisture and temperature detection
|
RainPoint 026*2 Multi Auto/Manual detection with LCD display
|
Generic Zigbee Soil Sensor Solar-powered with adjustable accuracy
|
RainPoint 026 Sensor Only
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| Brand | COOKING-MALL | Tuya | Haozee | RainPoint | Generic | RainPoint |
| Model | HW-390 | HZ-SL04 | 026*2 | Zigbee Soil Sensor | 026 | |
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| Price | $15.59 | $40.77 | $14.99 | $43.49 | $25.00 | $22.99 |
| Seller | Joom | Joom | Amazon | Amazon | Amazon | Amazon |
| Update | January 5, 2026 | January 5, 2026 | December 9, 2025 | December 9, 2025 | December 9, 2025 | December 9, 2025 |
| Display Type | LCD | LCD | LCD | |||
| Dimensions | 36.07, 163.07, 36.07 | 0.48 feet x 0.26 feet x 0.48 feet | 50.8, 203.2, 25.4 | |||
| Connectivity | Zigbee | Wi-Fi | Zigbee, Wireless | Wi-Fi | ||
| Power Source | Battery | Battery | Solar | Battery | ||
| App Compatibility | Tuya | Tuya | Tuya | |||
| Measurement Method | Pin | Pinless | Pin | |||
| Measured Parameters | Soil Moisture, Temperature | Soil Moisture | Soil Moisture | |||
