Sensors: monitor and take control

To make the right decisions, you need accurate, real-time data: how much moisture is in the soil, the quality of the water, whether pressure levels are correct, or if something is failing in the network.
Enhance your installation with our range of sensors. Monitor and secure your irrigation infrastructure with IoT precision and the simplicity you need.

Monitoring sensors

Sensors collect data and send it directly to the platform, helping you save water, energy, and time, while improving crop quality.
Whether you manage a farm or an irrigation community, you can visualize in real time what’s happening at every point in the network: flow, pressure, soil moisture, or water quality.

This allows you to plan irrigation based on reliable data, detect incidents before they affect service, and demonstrate more efficient and sustainable water management.

Soil

Reduce costs
and improve productivity

SPHERAG’s soil sensors measure volumetric water content, soil temperature, and electrical conductivity at different depths.

The SPHERAG platform processes this information and displays it in clear, visual graphs that are easy to interpret.

General specifications

  • Working temperature -20 ~ 60 °C 
  • Power supply 12 Vdc
  • Interface SDI-12 

Mechanical specifications

  • Sensor diameter Ø33.5 mm +/-0.2mm 
  • Cable length 5 m 
  • Protection rating IP68 

Soil temperature measurement 

  • Range -20 ~ 60 °C 
  • Resolution 0.01 °C
  • Accuracy ±1 ºC @ 25 ºC 

VWC (Volumetric Water Content) Measurement

  • Range 0 ~ 100% 
  • Resolution 0.01% 
  • VWC accuracy 2% 
  • Salinity accuracy ±5% @ 0-4 dS/m y 10%-30% VWC 

General specifications

  • Working temperature -20 ~ 60 °C 
  • Power supply 12 Vdc
  • Interface SDI-12 

Mechanical specifications

  • Sensor diameter Ø30 mm +/-0.2mm
  • Cable length 5 m 
  • Protection rating IP68 

Soil temperature measurement

  • Range -20 ~ 60 °C 
  • Resolution 0.3 °C
  • Accuracy ±2 ºC @ 25 ºC

Measurement of VWC (volumetric water content) 

  • Range 0 ~ 100% 
  • Resolution 0.01% 
  • VWC accuracy 2% 
  • Salinity accuracy ±5% @ 0-4 dS/m y 10%-30% VWC 

Tensiometer

Manage crop
water stress

The tensiometer measures soil water tension, indicating the actual effort roots must make to absorb water.

It uses a porous ceramic tip that interacts with the soil, creating a vacuum as the soil dries.

This durable and reliable solution helps optimize irrigation, manage water stress, and improve water-use efficiency.

General specifications

  • Materials Plastic C.A.B., ceramic, neoprene, EPDM, bronze, brass, and stainless steel.
  • Punta (Tip) SR (blanco) roscada, reemplazable.
  • Dial range 0-100 cb (kPa)
  • Cover size 2.5 pulg (63 mm).
  • Pressure gauge case AISI 304 stainless steel, ventilated by membrane. IP67 rating.
  • Accuracy ± 3-2-3% of gauge range, ASME B40.1 Grade B
  • Operating temperature 0.5 to 65°C
  • Weight 0.44 kg

Pressure

Sensor de presión

Control and safety
for hydraulic networks

Monitor your installation in real time. Verify that irrigation is running correctly, instantly detect pressure spikes or drops, and prevent mechanical failures in pumps or pipelines.

Maximize infrastructure lifespan and ensure uniform water and fertilizer distribution.

General specifications

  • Working temperature -10 ~ 50 °C 
  • Supply voltage 3.3 VDC 
  • Interface I2C 

Mechanical specifications

  • Dimensions Ø28 x 56 mm 
  • Cable length 2 m 
  • Weight 200 g 
  • Material Stainless steel
  • Protection rating IP68 
  • Thread 1/2” BSPP (Gas) 

Pressure measurement

  • Medium: water 
  • Range 0 ~ 30 bar 
  • Resolution 0.01 bar 
  • Accuracy 0.5% FS 

General specifications

  • Working temperature 0 ~ 70 °C 
  • Supply voltage 10 to 24 VDC 
  • Interface 4-20 mA 

Mechanical specifications

  • Dimensions Ø24 x 48.5 mm 
  • Cable length 3 m 
  • Weight 60 g 
  •  Material Stainless steel 304
  •  Protection rating IP68

Pressure measurement

  • Medium: Water
  • Range 0 ~ 16 bar 
  • Resolution 24 bar 
  • Accuracy ≤± 1% FS

Ambient temperature
and relative humidity

sensor temperatura y humedad

Hyperlocal
climate insights

Weather forecasts and mobile apps provide useful information, but nothing is more accurate than data collected directly on your farm.

Our sensors measure temperature and relative humidity right where your crops are growing.

General specifications

  • Interface: I2C
  • Working temperature: -40 °C to 75 °C
  • Power supply: 3.3 VDC

Mechanical specifications

  • Dimensions: Ø138 × 150 mm
  • Cable length: 2 m
  • Weight: 300 g
  • Material: ABS / PE
  • Protection rating: IP65

Humidity measurement

  • Range: 0% to 100% RH
  • Resolution: 0.1% RH
  • Accuracy: ±2% RH

Temperature measurement

  • Range: -40 °C to 125 °C
  • Resolution: 0.1 °C
  • Accuracy: ±0.3 °C

Water electrical conductivity

Control water salinity

The electrical conductivity (EC) and temperature sensor is designed to measure the electrical conductivity of water in a pipe or tank. Irrigation water salinity can be a limiting factor, reducing the plant’s ability to absorb water and nutrients.

Monitoring this parameter helps you prevent salinization issues, adjust your fertigation plan, and detect changes in water quality that could affect your crops.

General specifications

  • Working temperature -40 ~ 60 °C
  • Power supply 12 Vdc
  • Interface SDI-12

Mechanical specifications

  • Dimensions Ø24 × 109 mm
  • Cable length 5 m
  • Weight 300 g
  • Protection rating IP68

Temperature measurement

  • Range -40 ~ 60 °C
  • Resolution 0.1 °C
  • Accuracy ±1 °C

Electrical conductivity measurement

  • Range 0 ~ 120 dS/m
  • Resolution 0.001 dS/m
  • Accuracy ±0.01 dS/m (whichever is greater) or ±10%

Sensors for hydraulic infrastructure safety

Monitoring hydraulic infrastructures with sensors provides peace of mind: ensure irrigation is running correctly, detect malfunctions, and anticipate potentially critical situations.

Through the SPHERAG platform, you can configure custom alerts based on the values you choose. If any anomaly occurs in the irrigation system, our software sends a notification via SMS and/or email according to the priority you assign. Everything stays under control.

Flow switch

Detects leaks or blockages
in real time

The flow switch provides real-time data on water movement through pipes, enabling continuous monitoring of the irrigation system.

Its use drastically reduces response time to incidents such as leaks, blockages, or breaks, minimizes water waste, and ensures continuity and reliability of service, both at the plot level and for entire irrigation districts.

General specifications

  • Sensor type: Mechanical
  • Pipe connection: G1/2” standard thread
  • Body material: Brass and corrosion-resistant stainless steel
  • Blade material: Stainless steel
  • Maximum working pressure: 1.0 MPa
  • Ambient temperature: 0 ~ 60 °C
  • Liquid temperature: -10 ~ 100 °C
  • Micro switch: Single-pole double-throw (SPDT)

Pressure switch

presostato

Protects the network from overpressure and failures

Pressure spikes or drops beyond the hydraulic network’s design limits can cause pipe breaks and pump wear. Repair costs are compounded by potential crop losses due to supply interruptions during maintenance.

The pressure switch monitors network pressure and activates or deactivates a digital input when the configured threshold is reached, reliably closing the circuit.

General specifications

  • Contact type: Normally Open (NO)
  • Circuit activation: Closes (activates) when pressure threshold is reached
  • Pressure range: 0.1 to 1.0 MPa
  • Maximum working pressure: 1.0 MPa (10 bar)
  • Port connection: 1/8” male thread
  • Operating temperature: -5 to 60 °C
  • Protection rating: IP54

Level sensor

Monitor water
reserves

Monitoring water levels enables efficient planning of water reserves and helps prevent unexpected supply interruptions.

By generating early alerts for critical levels (empty or overflow), it helps prevent water waste and maintain the necessary pressure and flow throughout the network.

General specifications

  • Working temperature: -30 ~ 85 °C
  • Power supply: 3.3 VDC
  • Interface: I2C

Mechanical specifications

  • Dimensions: Ø27 × 114 mm
  • Cable length: 10 m
  • Weight: 1.4 kg
  • Material: Stainless steel
  • Protection rating: IP68

Level measurement

  • Type: Submersible
  • Range: 0 ~ 10 m
  • Resolution: 0.01 m
  • Accuracy: 0.5% FS

Intrusion sensor

intrusión

Protect your equipment
and infrastructure

The theft of equipment or acts of sabotage can cause significant financial losses due to replacement costs, service interruptions, and potential crop damage.

The intrusion sensor is essential to deter and detect unauthorized access or tampering in your installation. It provides an added layer of security, giving peace of mind to farmers and irrigation community managers alike.

General specifications

  • Sensor type: Reed (dry contact)
  • Operating temperature: -40 °C to +105 °C
  • Maximum working pressure: 1.0 MPa (10 bar)
  • Housing material: Impact-resistant plastic
  • Wiring: 3-meter cable, 2 wires, side output
  • Mounting: Surface-mounted with screws or adhesive
  • Protection rating: IP67

Sensor alerts

Peace of mind, we’ll notify you

Set up alerts based on the values you choose. If any anomaly occurs in the irrigation system, our software sends a notification via SMS and/or email according to the priority you assign. Everything stays under control.

Pressure sensor alert

Detecta sobrepresión o baja presión, lo que permite detectar roturas y fugas.
Además, puede actuar automáticamente parando los actuadores.

Level sensor alert

Sends a notification when water in the tank or reservoir reaches a maximum or minimum level.

Digital input alert

Notifies you of any state change.

Analog input alert

Configured using a selectable high and low threshold, always within the sensor’s specified range.

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