Soil pH Monitoring

What is the Sensor Hub Solution for Soil pH monitoring?

The RAK Sensor Hub Solution for Soil pH Monitoring Sensor is a high-precision, rugged, and scalable industrial soil pH measurement kit tailored for agriculture, research, and land management. It is part of RAKwireless’s Soil Monitoring Sensor Hub Solutions/Sensors and is designed to deliver real-time soil health insights for smart farming solutions. Based on the modular Sensor Hub platform, it integrates the industrial-grade RK500-22 Soil pH Sensor with reliable wireless connectivity over LoRaWAN technology or NB-IoT (CAT M1 / CAT NB2).

Designed for continuous operation in harsh outdoor environments, the soil sensors for LoRaWAN are ideal for:

• Smart farming and precision agriculture
• Greenhouses, orchards, and nurseries
• Soil science research and remediation
• Soil management and environmental monitoring
• Aquaculture and wastewater treatment

The Sensor Hub allows multiple sensors to be connected simultaneously, and extension cables or splitter accessories provide deployment flexibility across wide areas. Also, the SensorHub Solution with RK500-22 Soil Acidity Sensor is available in two variants:

1. LoRaWAN-only
2. LoRaWAN + NB-IoT
   Supports CAT M1 (higher data rates, lower latency) and CAT NB2 (ultra-low power, extended coverage), making it suitable for long-term, battery-powered deployments.

Note: When using the Sensor Probe IO with a connected wireless soil pH sensor, the Sensor Hub cannot be powered by batteries. Use the included DC adapter or add the Solar Battery Lite system.

Why You Need the Sensor Hub Solution with RK500-22 Soil pH Monitoring Sensor?

Reliable IoT-based soil health data analytics healthier crops, improved yields, and smarter environmental decisions. The IoT soil monitoring system provides dependable results while reducing complexity in field operations.

Why it’s useful:

• Efficient Management: Improves decision-making with accurate soil health data.
• Accurate insights: Provides consistent soil data for precise planning.
• Resource Protection: Helps prevent overuse of chemicals or treatments.
• Long-Term Monitoring: Supports continuous tracking without manual sampling.
• Flexible Deployment: Adapts to diverse sites such as farms, nurseries, or water systems.

Key Features of the Soil pH Monitoring Solution

• LoRaWAN technology / NB-IoT communication (based on selected model)
• Durable outdoor-ready design
• High accuracy and fast response time
• IP68-rated waterproof stainless steel probe
• DC power or Battery Lite with Solar Panel(optional)
• Measurement range 0–14 pH
• Accuracy ±0.05 pH
• Resolution 0.01 pH
• Response time with soil moisture above 30% less than 10 seconds
• Probe dimensions are 15 mm in diameter and 200 mm in length
• The cable length of the pH sensor is 5 meters (about 16.5 feet)
• Supports global LoRaWAN bands.

Power & Connectivity: LoRaWAN or NB-IoT

The Soil pH Monitoring Solution supports LoRaWAN for long-range, low-power deployments and NB-IoT for sites with cellular coverage or higher reliability needs. It can be powered by a DC adapter or the Solar Battery Lite system for off grid deployments.

Data and Platform Integration

This soil pH measurement device integrates with RAK Cloud, The Things Network (TTN), and ChirpStack for LoRaWAN workflows. Data can also be forwarded to third-party analytics tools for trend monitoring and farm management. The Sensor Hub lets multiple sensor modules share one uplink, simplifying deployment across field sites.

Use Case Examples for Sensor Hub Solution with RK500-22 Soil pH Monitoring Sensor

As part of a smart farming IoT sensor system, the soil pH measurement device adapts to a wide range of applications and addresses real problems with practical monitoring capabilities.

Use Case #1: Precision Farming in Orchards

Farmers use the wireless soil pH sensor to check field acidity across multiple orchard plots. The system gives them real-time updates right away, so they can adjust treatments on time. This leads to consistent fruit quality and healthier crop growth cycles.

Use Case #2:Aquaculture Site Environmental Monitoring

A fish farm uses the soil pH sensor to monitor pond-side soil conditions near banks, runoff areas, and treatment zones. The system provides wireless updates that help operators track environmental changes around the site and support better pond management decisions.

Comparison Table: Sensor Hub Solution with RK500-22, Dragino SPH01-LB, Daviteq WSLRW-PH100

What’s in the Box

• 1 pc Sensor Hub
• 1 pc Sensor Probe IO
• 1 pc RK500-22 pH Sensor
• 1 pc Power Supply for Sensor Hub
• 1 pc Sensor Hub Wall Mount
• 1 pc Pole Mount Clamp (φ65–89 mm)
• 1 pc Screw Kit

How to Get Started with Sensor Hub Solution with RK500-22 Soil pH Monitoring Sensor

• Overview for Sensor Hub Solution with RK500-22 Soil PH Monitoring Sensor
• Quick Start Guide for Sensor Hub Solution with RK500-22 Soil PH Monitoring Sensor
• LoRaWAN Network Server for Sensor Hub Solution with RK500-22 Soil PH Monitoring Sensor
• Datasheet for Sensor Hub Solution with RK500-22 Soil PH Monitoring Sensor