The 2 Basic Types: What Humidity Sensors Can Do
Air Humidity Sensors
These sensors determine the relative humidity. The measurement refers exclusively to the proportion of gaseous water vapor in the air — liquid water such as raindrops plays no role.
Soil Moisture Sensors
These sensors measure the water content in the ground, typically in soil. Accordingly, they are placed in the earth — in upper or deeper layers depending on the objective. Water and soil moisture sensors can also be used in basements and elsewhere as flood alarm systems.
Measuring Humidity: Where an Air Humidity Sensor Proves Its Worth
Relative humidity is a key measurement value that proves important in a wide variety of environments. The classic example is measurement in living spaces: excessively high humidity risks mold growth, while values that are too low can have negative effects on the immune system. It therefore pays to continuously monitor humidity with dedicated hygrometers or comprehensive weather stations. The same applies to industrial companies and logistics providers that manufacture or store food, for example. The ideal humidity level has a decisive influence on quality.
In building automation, air humidity sensors are an indispensable component. If measured values fall below or exceed defined thresholds, the ventilation system responds automatically.
Humidity Sensors with LoRaWAN: Wireless Measurement Over Long Distances
Many humidity sensors in our range support LoRaWAN – and this opens up entirely new possibilities for wireless moisture measurement. Whether you want to monitor soil moisture across large fields or control air humidity in hard-to-reach areas of a building: with LoRaWAN humidity sensors, you transmit measurement data reliably over ranges of several kilometers — without any complex cable installation.
LoRaWAN Humidity Sensors: Three Core Advantages
- Long range: Data transmission over several kilometers, even in rural areas without Wi-Fi infrastructure
- Low power consumption: Battery-powered sensors often run for years without maintenance
- Easy network integration: Integration into existing LoRaWAN networks (TTN, Chirpstack, etc.) and IoT platforms
Manufacturers such as Dragino offer field-proven LoRaWAN humidity sensors that are flexibly suited for both outdoor and indoor applications. Typical use cases include precision agriculture, building monitoring, and smart city applications. Combined sensors often capture air humidity, temperature, and air pressure simultaneously.
Ordering the Optimal Air Humidity Sensor
If you need an air humidity sensor for your project, you've come to the right place in our shop: benefit from brand quality and a wide selection! As a first step, consider which measurements you need: is measuring humidity alone sufficient, or do you also want additional values such as temperature and air pressure? Our range includes various models that either exclusively measure humidity or provide additional measurement data.
Do you need a wireless solution for long distances? Then our LoRaWAN humidity sensors are the right choice. Another key factor to consider is measurement accuracy.
Choosing the Ideal Soil Moisture Sensor
As with humidity sensors, measurement accuracy is the most important factor. It is best to first define a requirements profile and then select the appropriate soil moisture sensor.
A high-quality soil moisture sensor is also robust, corrosion-resistant, and equipped with long-range data transmission technology. Full details can be found on the individual product pages.
Measuring Soil Moisture: Agriculture as an Example
A soil moisture sensor is a measuring device used to determine the water content of the soil. These sensors are used particularly in agriculture and forestry. They provide users with precise information about the condition of the soil at a given depth. Soil can be, for example, wet, moist, arid, or dry.
In the agricultural sector, soil moisture sensors enable automatic irrigation. The current reading indicates whether irrigation is needed and, if so, how much water the soil requires. This automation increases efficiency on farms.