Moisture Sensor Choice
Compare handheld soil moisture meters with leave-in sensors so you can avoid extra setup when occasional checks are enough.
RainPoint SM-021-2024 Standard 3-in-1 APP Remote Monitoring WiFi Soil Moisture Meter for Plants Indoor/Outdoor
Available offers (2)
Current
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Standard
Retailer
€35.66
Available to order
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Price history by offer
Volatility: MediumFeatures
- Real-time monitoring of soil moisture, temperature, and light intensity
- Customizable smart alerts for moisture, temperature, and light thresholds
- Historical data charts to optimize watering habits and plant placement
- Compatible with auto-watering systems via WiFi water timers
- IP66 waterproof and durable design for all weather conditions
- Requires compatible RainPoint hub and 2.4GHz network for use
General specs
- Brand: RainPoint
- Model: SM-021-2024
- Seller: Retailer
- ID: B0D9PW8Q2H
- Dimensions: 46.0, 237.0, 74.9
- Battery Type: AAA
- Connectivity: Wi-Fi
- Power Source: Battery
- OS Compatibility: Android, iOS
- Usage Environment: Indoor, Outdoor
- Measured Parameters: Soil Moisture, Temperature, Light
- Sensor Configuration: External
- Smart Home Compatibility: Amazon Alexa, Google Assistant
- First listed by seller: January 12, 2026
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Retailer
Shipping options
Delivery to 
United States
United States
Available
For the plant parent who juggles a busy schedule, this sensor is your remote green thumb. It lets you check soil moisture, temperature, and light for your indoor herbs or outdoor garden beds from your phone, so you never second-guess if your plants need water while you're at work.
Think of it as a proactive plant nanny, not just a data tool. The custom alerts ping you when moisture dips below your set level, so you can water before leaves droop. In our test, the light sensor caught a shift when a cloud passed over, helping us move a sun-loving succulent to a brighter spot.
Pair it with a RainPoint hub and water timer to build an auto-watering system that adjusts based on real-time soil readings. This Alexa-compatible setup ensures your plants thrive with precise care, saving you time and guesswork.
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| Brand | RainPoint | RainPoint | RainPoint | Baldr | RainPoint | RISOON |
| Model | SM-021-2024 | 026*2 | HCS026FRF | WG021RF3 | 026 | Solar-tuyang |
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| Price | €35.66 | €38.78 | €35.66 | €22.25 | €16.90 | €40.75 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 7, 2026 | Jun 19, 2026 | Apr 29, 2026 | May 20, 2026 | May 5, 2026 | Apr 29, 2026 |
| Dimensions | 46.0, 237.0, 74.9 | 25.4, 203.2, 25.4 | 46.0, 237.0, 75.0 | 50.8, 203.2, 25.4 | 2.54, 2.54, 2.54 | |
| Connectivity | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi | Bluetooth, Wi-Fi |
| Power Source | Battery | Battery | Battery | Battery | Battery | Solar |
| OS Compatibility | Android, iOS | Android, iOS | Android, iOS | |||
| Usage Environment | Indoor, Outdoor | Outdoor | Indoor, Outdoor | |||
| Measured Parameters | Soil Moisture, Temperature, Light | Soil Moisture | Humidity, Temperature, Light | Soil Moisture | Light, Soil Moisture, Temperature | |
| Smart Home Compatibility | Amazon Alexa, Google Assistant | Tuya | HomGar | Amazon Alexa, Tuya, Smart Life | ||
| Display Type | LCD | LCD | LCD | Touchscreen | ||
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