Seeed Studio S-pH-01A | Industrial RS485 & 4-20mA pH Sensor
The Seeed Studio S-pH-01A is an anti-corrosion pH sensor for long-term immersion in soil or water.
- Outputs: RS485 Modbus RTU and 4-20 mA
- ATC: automatic temperature compensation
- Junction: solid dielectric design to reduce clogging
Seeed Studio S-pH-01A | Industrial RS485 & 4-20mA pH Sensor is backordered and will ship as soon as it is back in stock.
VAT & Business Purchases
VAT & Business Purchases
Prices include VAT at the rate of your EU delivery country, so the price shown is the price you pay. EU businesses with a valid VAT number can buy VAT-free: enter your company name and VAT number at checkout and VAT is removed under the intra-community reverse-charge rules. Orders delivered within Cyprus always include Cyprus VAT.
Secure Payment & Warranty
Secure Payment & Warranty
- Encrypted Checkout: Shop with confidence via Shopify Payments or PayPal Express for fully secure, PCI-compliant transactions.
- B2B Flexible Billing: For large-scale infrastructure orders, we offer Direct Bank Transfer (SEPA/SWIFT) options. Please contact our team for a pro-forma invoice.
- Warranty & Support: Consumer purchases are covered by the 2-year legal guarantee of conformity, and manufacturer warranty terms apply per brand. Our engineering team at shopioT provides technical support.
Delivery and Shipping
Delivery and Shipping
Tracked delivery within Cyprus by ACS Courier, and to all EU member states, the United Kingdom and Switzerland by FedEx International Priority. Orders ship from our warehouse in Nicosia, Cyprus, typically within 1–3 business days. Shipping cost is calculated at checkout by destination and parcel weight. See our Shipping Policy for rates and delivery times.
Seeed Studio S-pH-01A | Industrial RS485 & 4-20mA pH Sensor is backordered and will ship as soon as it is back in stock.
Description
Description
The Seeed Studio S-pH-01A is an industrial-standard pH Sensor engineered for rigorous environmental monitoring and process control. Built with an international advanced solid dielectric and a large-area polytetrafluoroethylene liquid junction, the probe is highly resistant to clogging, ensuring stable performance even in high-sediment or wastewater applications. The S-pH-01A features Automatic Temperature Compensation (ATC), which maintains a measurement accuracy of ±0.1 pH across a wide temperature range. Whether integrated into a PLC via RS485 or a legacy system via 4-20mA, this sensor provides a durable, cost-effective solution for both indoor and outdoor pH tracking.
Industrial Water & Soil Analytics
Professional Monitoring Scenarios
What is in the Box?
Product Certifications
Specifications
Specifications
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Primary Communication ProtocolRS485 / Modbus RTU
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Interfaces (I/O)RS485 (Modbus RTU), Analog Output (4-20mA), Analog Output (0-2V)
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Configuration MethodModbus Commands
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Activation MethodPlug & Play
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Monitoring ParametersWater pH, Soil pH, Temperature
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Measurement Technology
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Measurement Range
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Measurement Accuracy
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Measurement Resolution
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Power SourceDC Input
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Power Input
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Power ConsumptionCurrent: max 6 mA @ 24 VDC
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Weight
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IP RatingIP65
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Environment RatingOutdoor, Industrial
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Operating Temperature-40°C to +85°C
Document Library
Document Library
Payment & Security
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