---
product_id: 290537170
title: "Gardena smart Sensor: intelligent soil moisture meter for fully automatic watering of the garden with the Gardena smart App - without smart Gateway (required) (19040-20)"
brand: "gardena"
price: "£82.07"
currency: GBP
in_stock: true
reviews_count: 12
category: "Gardena"
url: https://www.desertcart.co.uk/products/290537170-gardena-smart-sensor-intelligent-soil-moisture-meter-for-fully-automatic
store_origin: GB
region: United Kingdom
---

# Light intensity & outdoor temperature tracking Precision soil moisture measurement Real-time data access via smart app Gardena smart Sensor: intelligent soil moisture meter for fully automatic watering of the garden with the Gardena smart App - without smart Gateway (required) (19040-20)

**Brand:** gardena
**Price:** £82.07
**Availability:** ✅ In Stock

## Summary

> 🌿 Stay ahead in garden tech—smart watering made effortless!

## Quick Answers

- **What is this?** Gardena smart Sensor: intelligent soil moisture meter for fully automatic watering of the garden with the Gardena smart App - without smart Gateway (required) (19040-20) by gardena
- **How much does it cost?** £82.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/290537170-gardena-smart-sensor-intelligent-soil-moisture-meter-for-fully-automatic)

## Best For

- gardena enthusiasts

## Why This Product

- Trusted gardena brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Anywhere Access:** Monitor your garden’s health remotely on any device with the Gardena smart app
- • **Compact & Discreet:** Slim, flat design fits seamlessly in lawns and planters without disrupting aesthetics
- • **Long-Lasting Power:** Runs on standard batteries with nearly a year of uninterrupted performance
- • **Smart Soil Sensing:** Accurately measures moisture, light, and temperature for optimal garden care
- • **Water-Wise Automation:** Enables fully automatic watering, saving water and time effortlessly

## Overview

The Gardena smart Sensor is a compact, intelligent soil moisture meter that tracks soil moisture, light intensity, and outdoor temperature. It connects seamlessly to the Gardena smart app, allowing professional gardeners and plant enthusiasts to monitor and automate watering remotely. Designed for lawns, balconies, and terraces, it supports water-saving, fully automatic irrigation without needing a smart gateway, backed by a long battery life and a sleek, unobtrusive design.

## Description

From the manufacturer Modern and compact design The elegant and compact design allows for use not only on a lawn or in a flower bed, but also in planters on a balcony or terrace. Thanks to the particularly flat head section, it does not disturb any mowing robot or lawnmower. Sensor control The smart Sensor is part of the GARDENA smart system and provides you with the most important information from your garden for optimum and economical watering, directly via the GARDENA smart App . It measures soil moisture quickly, reliably and particularly accurately. GARDENA smart App The GARDENA smart App (Online registration required) can be downloaded for free on iOS and Android or you can access it via the web. The App enables you to take care of your garden with only the touch of your fingertips. Simply download the app, create an account and you’re ready to go! Reliable operation and a wireless, secure connection The smart Gateway with a proven wireless connection with long-range radio link ensures a reliable connection to the smart devices in the garden and is connected to the Internet router via WLAN or LAN cable. Smart partnerships for your garden The GARDENA smart system is accessible to compatible devices from other manufacturers, which can be connected to the system via the app. Even more possibilities arise through the connection to established cloud platforms such as Apple HomeKit, desertcart Alexa and Google Home. Which products can I connect to the GARDENA smart system? smart Water Control - at the tap smart Irrigation Control smart Pump smart Robotic lawnmowers smart - Power Adapter smart Sensor Water a single garden area. Tip: Add a smart Sensor to save water. Irrigation control - permanently installed and underground. Water multiple garden areas. Tip: Add a smart Sensor to save water. Water multiple garden areas. Tip: Add a smart Sensor to save water. The smart robotic lawnmower is fully integrated into the GARDENA smart system. Now you can mow the lawn the smart way automatically. Control any electric device (e.g. lights) with the GARDENA smart App. Provides you directly via the GARDENA smart App (Online registration required) with the most important information from your garden for optimum and economical watering.

Review: Good, but let down by software - Sensor seems to accurately detect soil moisture level, but i had hoped the Gardena app could "average" values from multiple sensors in different parts of the garden (some with more light etc than others) The current version of the Gardena watering smart app only permits a single sensor per watering zone
Review: Saves water and has long battery life - Stops unnecessary watering when used with the Gardena Smart watering system. Batteries last nearly a year and the integration with the app is very good. As expected, a great product from Gardena.

## Features

- Gardena smart Sensor: Measures soil moisture, light intensity, outdoor temperature via smart app - access your data from anywhere on any device.
- Reading out the data: Conveniently delivers the most important information from your garden directly from the Gardena smart app on your smartphone (online registration required).
- Small and fine: Attractive and compact design, ideal for use in the garden or in planters on the balcony and terrace.
- Compact: The extremely flat head allows use in the middle of the lawn, which is mown with a lawn mower or robotic mower.
- Scope of delivery includes: 1x smart sensor

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08LNQGB99 |
| Battery Description | AA or AAA batteries (type and quantity not specified) |
| Battery description | AA or AAA batteries (type and quantity not specified) |
| Best Sellers Rank | 25,334 in Garden ( See Top 100 in Garden ) 25 in Soil Meters |
| Brand | Gardena |
| Colour | Grey, turquoise |
| Customer Reviews | 4.5 out of 5 stars 618 Reviews |
| EU Spare Part Availability Duration | 7 Years |
| Global Trade Identification Number | 04078500049009 |
| Included Components | smart sensor |
| Item Dimensions W x H | 45W x 80H millimetres |
| Item Type Name | smart sensor |
| Manufacturer | Gardena Deutschland GmbH |
| Manufacturer Part Number | 19040-20 |
| Model Number | 19040-20 |
| Mounting Type | Tabletop |
| Mounting type | Tabletop |
| Operating Humidity | 40-70% |
| Operating humidity | 40-70% |
| Product Warranty | 2 year manufacturer |
| Product dimensions | 45W x 80H millimetres |
| Temperature Reading Accuracy | plus_minus_0_point_5_degrees_celsius |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 50 Degrees Celsius |
| Voltage | 1.5 Volts |

## Product Details

- **Battery description:** AA or AAA batteries (type and quantity not specified)
- **Brand:** Gardena
- **Colour:** Grey, turquoise
- **Mounting type:** Tabletop
- **Product dimensions:** 45W x 80H millimetres

## Images

![Gardena smart Sensor: intelligent soil moisture meter for fully automatic watering of the garden with the Gardena smart App - without smart Gateway (required) (19040-20) - Image 1](https://m.media-amazon.com/images/I/61fdENzKyQL.jpg)
![Gardena smart Sensor: intelligent soil moisture meter for fully automatic watering of the garden with the Gardena smart App - without smart Gateway (required) (19040-20) - Image 2](https://m.media-amazon.com/images/I/514CahAHqyL.jpg)
![Gardena smart Sensor: intelligent soil moisture meter for fully automatic watering of the garden with the Gardena smart App - without smart Gateway (required) (19040-20) - Image 3](https://m.media-amazon.com/images/I/71MU-EkphhL.jpg)
![Gardena smart Sensor: intelligent soil moisture meter for fully automatic watering of the garden with the Gardena smart App - without smart Gateway (required) (19040-20) - Image 4](https://m.media-amazon.com/images/I/71iK6KCRS6L.jpg)
![Gardena smart Sensor: intelligent soil moisture meter for fully automatic watering of the garden with the Gardena smart App - without smart Gateway (required) (19040-20) - Image 5](https://m.media-amazon.com/images/I/910H5TD5nZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good, but let down by software
*by P***. on 6 October 2025*

Sensor seems to accurately detect soil moisture level, but i had hoped the Gardena app could "average" values from multiple sensors in different parts of the garden (some with more light etc than others) The current version of the Gardena watering smart app only permits a single sensor per watering zone

### ⭐⭐⭐⭐⭐ Saves water and has long battery life
*by M***Y on 24 September 2025*

Stops unnecessary watering when used with the Gardena Smart watering system. Batteries last nearly a year and the integration with the app is very good. As expected, a great product from Gardena.

### ⭐⭐⭐⭐ Great but expensive sensor
*by B***K on 5 October 2025*

Sensor does exactly what it needs to do but it is very expensive. Tied into the Gardena system so no other option unless I go down the more complex home hub automations.

## Frequently Bought Together

- Gardena smart Sensor: intelligent soil moisture meter for fully automatic watering of the garden with the Gardena smart App - without smart Gateway (required) (19040-20)
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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-20*