Seeed Studio S-pH-01A – Industrial RS485 & 4–20mA pH Sensor

Seeed Studio S-pH-01A – Industrial RS485 & 4–20mA pH Sensor

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€149,00

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Industrial pH Sensor for Water Quality & Smart Agriculture Monitoring

The Seeed Studio S-pH-01A is a professional industrial-grade pH sensor designed for precise pH monitoring in water, soil and liquid-based environmental applications. It accurately measures pH values in the range of 0–14 pH, making it suitable for agriculture, hydroponics, aquaponics, water treatment and industrial monitoring applications.

The sensor supports both RS485 MODBUS-RTU communication and 4–20mA current output, allowing seamless integration with PLCs, RTUs, IoT gateways, industrial controllers and data loggers. This makes it highly versatile for industrial automation and remote monitoring systems.

The S-pH-01A uses advanced solid dielectric technology and a large-area PTFE liquid junction, reducing clogging and ensuring long-term stable performance with minimal maintenance. The integrated ATC (Automatic Temperature Compensation) improves measurement accuracy under varying environmental temperatures.

With wide supply voltage support (3.6–30V DC) and industrial-grade protection, the sensor is built for long-term use in harsh environments. Its robust design ensures reliable operation in agriculture, wastewater treatment, swimming pools and environmental sensing applications.


Key Features

✔ Industrial pH Sensor
✔ pH Range: 0–14
✔ RS485 MODBUS-RTU Interface
✔ 4–20mA Current Output
✔ Automatic Temperature Compensation (ATC)
✔ High Accuracy & Fast Response
✔ Anti-Clogging Probe Design
✔ Low Power Consumption
✔ Wide 3.6–30V DC Supply
✔ Easy Integration with PLC / RTU / Gateway
✔ Suitable for Long-Term Monitoring
✔ Ideal for Water Quality Monitoring


Typical Specifications

• Interface: RS485 MODBUS-RTU
• Analog Output: 4–20mA
• pH Range: 0–14 pH
• Resolution: 0.01 pH
• Accuracy: ±0.1 pH
• Power Supply: 3.6–30V DC
• Current Consumption: Max 6mA @ 24V
• Operating Temperature: -40°C ~ +85°C
• Cable Length: 5m
• Weight: 400g


Applications

Water Quality Monitoring
Smart Agriculture
Hydroponics
Aquaponics
Wastewater Treatment
Swimming Pools
Industrial Monitoring
Environmental Monitoring
Scientific Research


Specifications

General

  • Model: S-pH-01A
  • Sensor Type: Industrial pH Sensor
  • Interface: RS485
  • Protocol: MODBUS-RTU
  • Analog Output: 4–20mA

pH Measurement

  • Range: 0–14 pH
  • Resolution: 0.01 pH
  • Accuracy: ±0.1 pH

Electrical

  • Supply Voltage: 3.6–30V DC
  • Current Consumption: Max 6mA @ 24V

Mechanical

  • Cable Length: 5m
  • Weight: 400g
  • Installation: Soil / Water / Liquid Media

Product Downloads

📑 Datasheet
📘 User Manual

  • Model: S-pH-01A
  • Interface: RS485 MODBUS-RTU
  • Analog Output: 4–20mA
  • pH Range: 0–14 pH
  • Resolution: 0.01 pH
  • Accuracy: ±0.1 pH
  • Supply Voltage: 3.6–30V DC
  • Cable Length: 5m

Shipping Policy We provide worldwide shipping using only tracked shipping services. Currently all our international shipments are performed by TNT Express and FedEx. Local shipments to Greece are performed either directly from us or using local shipping couriers (i.e. ELTA Courier). We ship products within 1-3 days after the order is placed. You will be notified by email when your order is dispatched and you will receive the relevant shipment tracking number which you can use to track your shipment. Shipment Tracking You can use the following links to track your order using the provided tracking number in the case of international orders. Orders shipped with TNT Express: TNT Tracking Orders shipped with FedEx: FedEX Tracking General Return Policy We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at info@invibit.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. For any further information, help and support regarding the shipping and/or return process you can contact us at: Email: info@invibit.com Telephone: +30 210 421 2380