Free help & technical advice Contact us
1 3
Seeed Studio  |  SKU: 314990634

Seeed Studio EC, TDS & Temperature Sensor | RS485 Modbus RTU

Price incl. 19% VAT
€201,00
Price excl. VAT
€168,91
Shipping calculated at checkout. Shipping policy

The Seeed Studio EC/TDS/Temperature Sensor is an RS485 3-in-1 probe for water quality monitoring.

  • Range: EC up to 20,000 µS/cm with compensation
  • Output: RS485 Modbus RTU
  • IP68: waterproof with anti-corrosion electrodes

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
  • 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

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.

EU business? Enter your company name and a valid EU VAT number at checkout to remove VAT (reverse charge).

Description

The Seeed Studio Industrial EC & TDS Sensor is a high-performance solution for real-time liquid analysis in harsh environments. By integrating Electrical Conductivity (EC), Total Dissolved Solids (TDS), and Temperature sensing into a single probe, it provides a comprehensive profile of water quality. The sensor features graphite electrodes and internal temperature compensation, ensuring stable and accurate readings even as environmental conditions fluctuate. Housed in a durable IP68 enclosure, it is designed for long-term immersion in industrial wastewater, hydroponic nutrients, and environmental monitoring sites.

Advanced Liquid Analytics

Temperature Compensation Built-in NTC sensor automatically adjusts EC/TDS readings based on liquid temperature for consistent accuracy.
Modbus RTU Integration Standard RS485 interface allows for easy connection to data loggers, PLCs, or LoRaWAN Modbus DTUs.
Anti-Corrosion Probe Features high-quality graphite electrodes that resist polarization and chemical corrosion in liquid environments.
Standard Signal Output Supports easy EC calibration through software commands or onboard buttons to maintain measurement fidelity.

Industrial Use Cases

• Hydroponics & Smart Farming: Monitor nutrient solution concentration to ensure optimal plant growth and yield.
• Environmental Monitoring: Track water quality in rivers, lakes, and coastal areas for ecological research.
• Industrial Wastewater: Monitor the salt content and chemical composition of process water in manufacturing plants.

Technical Integration

The sensor operates on a wide 3.6V to 30V DC power supply and provides a robust RS485 Modbus RTU output. For remote monitoring, it can be paired with the SenseCap series of LoRaWAN transmitters. The probe includes a 5-meter cable (customizable) and supports varied installation methods including immersion or pipe-flow mounting. For expert guidance on water quality sensor networks, contact the ShopIoT engineering team.

Specifications
  • Primary Communication Protocol
    RS485 / Modbus RTU
  • Interfaces (I/O)
    RS485 (Modbus RTU), Analog Output (0-2V)
  • Configuration Method
    Software (via RS485)
  • Monitoring Parameters
    Temperature, Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity
  • Measurement Range

    Electrical conductivity: 0–20,000 µS/cm

    TDS: 0–20,000 mg/L (calculated)

    Salinity: 0–20,000 mg/L (calculated)

    Temperature: -40–80°C

  • Measurement Accuracy

    Electrical conductivity: ±3% (0–10,000 µS/cm); ±5% (10,000–20,000 µS/cm)

    Temperature: ±0.5°C

  • Measurement Resolution

    Electrical conductivity: 10 µS/cm (0–10,000 µS/cm); 50 µS/cm (10,000–20,000 µS/cm)

    Temperature: 0.1°C

  • Power Source
    DC Input
  • Power Input
    3.9–30 VDC; RS485 Modbus RTU / 0–2 V analog output
  • Power Consumption
    40 mA @ 24 VDC (idle), 80 mA @ 24 VDC (max)
  • Dimensions
    128 × 70 × 42 mm (transmitter); electrode 1/2" NPT thread
  • Enclosure Material
    PC (Polycarbonate)
  • Mounting Options
    Wall Mount
  • IP Rating
    IP65, IP68
  • Environment Rating
    Outdoor, Industrial
  • Operating Temperature
    -40°C to +85°C
  • Warranty
    2 Years

Document Library

Industrial EC & TDS Sensor Datasheet

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Google Pay
  • Klarna
  • Maestro
  • Mastercard
  • MB WAY
  • MobilePay
  • PayPal
  • Satispay
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Advangrid GridMate Smart Electricity Monitoring System | shopioT

Unlock Granular Energy Insights with AdvanGrid Gridmate!

To truly optimize your facility, you need to see exactly where every watt is going. Introducing the AdvanGrid Gridmate—a compact, high-density LoRaWAN® electricity monitoring sensor designed for professional sub-metering.

Shop Advangrid GridMate