RainPoint outdoor soil moisture sensor

Take care of your plants accurately and conveniently with the RainPoint HCS021FRF sensor, which monitors soil moisture (0-100% RH), temperature (-20°C to 60°C) and light intensity (0-200,000 lx). The device connects via 2.4 GHz Wi-Fi and allows remote control via an app, giving you full control over growing conditions at all times. With IPX5 water resistance and a range of up to 60 m (depending on obstacles), the sensor is ideal for both gardens and potted plants.

Constant access to data in the application

Thanks to the dedicated app, you can check the most important soil and environmental parameters in real time – without leaving your home. The device's display shows current values for humidity, temperature and light intensity, and you can also access a history of measurements from the last 24 hours to 10 days. This allows you to better understand your plants' needs and make informed decisions regarding watering or light exposure.

Precise measurements adapted to the soil type

The sensor allows you to select the soil type in the app, which affects the accuracy of the moisture readings. You can adjust the settings to suit your specific conditions – whether you’re using garden soil, potting mix or other substrates. This solution provides more reliable data and helps you care for your plants more effectively.

Thoughtful design and easy installation

The ergonomic design with dimensions of 222 × 69 × 72 mm allows convenient installation of the sensor both in pots and in the soil. To start measuring, simply place the probe in the soil (up to the MAX mark). The device is powered by 3 AA batteries (not included), and the intuitive button allows for quick start-up and configuration.

Weather resistance

Designed for outdoor use, the RainPoint HCS021FRF can easily withstand moisture and splashes thanks to its IPX5 protection. The built-in light sensor located on the top of the device monitors light intensity, allowing for even better control over plant growth conditions – whether in the garden or on the balcony.

Warranty: 12 months

The text is machine translated.

It is important to know

Before choosing a RainPoint outdoor soil moisture sensor, it is crucial to clearly know where you want to integrate it into your irrigation system and what kind of control you want – manual or smart remote. It brings the greatest added value as a complement to an existing controller, so pay special attention to compatibility and installation options before purchasing.

• Wi-Fi connectivity allows you to change settings remotely, but this depends on the range of your home network at the location of use.
• Battery power offers the flexibility to use in places without a power outlet, but it also means you will need to check and replace the batteries regularly.
• The sensor serves as a complement to the main programmer, not as a standalone watering solution – its function is to optimize watering cycles based on soil moisture.
• Before purchasing, it is recommended to check whether your existing irrigation system or programmer is compatible with this sensor to ensure it will work without complications.

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In practice

🟢 Automation of watering a small garden or lawn

Very convenient – the sensor combined with a compatible programmer allows for optimized watering based on actual soil moisture.

🟡 Upgrading the existing irrigation system

Compatible with limitations - use is only effective if your programmer is compatible with the sensor; check supported models before purchasing.

🟢 Remote monitoring and setup via Wi-Fi

Very convenient – thanks to Wi-Fi connectivity, the sensor can transmit humidity data to the app and allow adjustments without physical presence.

🟡 Use in areas without electrical wiring

Suitable with limitations – battery power allows installation even in remote locations, but please note the need to regularly check the battery status.

🔴 Acting as the only solution for timed watering

Less suitable – the sensor itself cannot replace the control unit or programmer; it is needed as an addition.

Answers to frequently asked questions

Is the RainPoint sensor compatible with all irrigation controllers?

The sensor only works with certain programmer models, so compatibility should be checked with the manufacturer or in the instructions before purchase.

How often should the batteries in the sensor be changed?

Battery replacement depends on frequency of use and environmental conditions; it is recommended to regularly check the battery status in the app or on the device itself.

Can I use the sensor as a standalone watering device?

No, the sensor is intended to monitor soil moisture and only as part of a system with a programmer does it affect the watering schedule.

Description updated: September 2026

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