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Seeed Studio  |  SKU: 101991028

Seeed Studio S-CO2-03 | CO2, Temperature & Humidity Sensor (RS485 & SDI-12)

Price incl. 19% VAT
€114,00
Price excl. VAT
€95,80
Shipping calculated at checkout. Shipping policy

The Seeed Studio S-CO2-03 is an NDIR CO2, temperature and humidity sensor with RS485 and SDI-12.

  • 3-in-1: CO2, temperature and humidity
  • Protocols: RS485 Modbus and SDI-12
  • IP65: for outdoor installation

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 S-CO2-03 is a high-performance atmospheric sensor designed to provide precise data for carbon dioxide levels, temperature, and relative humidity. Utilizing Non-Dispersive Infrared (NDIR) technology, the sensor delivers high long-term stability and accuracy, even in environments with fluctuating conditions. This industrial-grade probe is a core component for smart agriculture, greenhouse automation, and urban environmental monitoring networks where reliable multi-parameter data is critical.

Technical Capabilities

NDIR CO2 Technology High-precision gas detection with built-in temperature compensation for stable readings.
Standard Communication Supports Modbus RTU (RS485) and SDI-12 for integration with PLCs and data loggers.
IP65 Enclosure Ruggedized, UV-resistant housing protects sensors from rain, dust, and direct sunlight.
Field Serviceable Supports manual zero-point calibration and software-based offset adjustments in the field.

Available Configurations

We offer the SenseCAP S-CO2-03 in two hardware variants to suit your installation requirements:

• Stripped Wires: Standard cable lead for direct wiring into terminal blocks or enclosures.
• Aviation Connector: Equipped with a 6-pin waterproof connector for plug-and-play use with SenseCAP Sensor Hubs.

Industrial Deployment

The S-CO2-03 operates on a wide 5V to 24V DC power range, making it compatible with various industrial power systems. For wireless monitoring, it can be bridged to LoRaWAN® using the SenseCAP Sensor Hub or other Modbus DTUs. The louvered shield design provides optimal ventilation while preventing sensor saturation in high-humidity environments. For guidance on sensor placement or large-scale greenhouse architecture, contact the shopioT engineering team.

Specifications
  • Primary Communication Protocol
    RS485 / Modbus RTU, SDI-12
  • Interfaces (I/O)
    RS485 (Modbus RTU), SDI-12
  • Configuration Method
    Modbus Commands, SDI-12 Commands
  • Monitoring Parameters
    CO2 (Carbon Dioxide), Temperature, Humidity
  • Measurement Technology

    CO2: non-dispersive infrared (NDIR)

  • Measurement Range

    CO2: 0–10000 ppm

    Temperature: -40°C to +85°C

    Humidity: 0–100% RH

  • Measurement Accuracy

    CO2: ±(40 ppm + 3% of reading)

    Temperature: ±0.2°C

    Humidity: ±1.8% RH

  • Measurement Resolution

    CO2: 1 ppm

    Temperature: 0.01°C

    Humidity: 0.01% RH

  • Power Source
    DC Input
  • Power Input
    5–24 VDC
  • Power Consumption
    RS-485 working current: 33 mA @ 5 V; 19 mA @ 9 V; 15 mA @ 12 V; 11 mA @ 16 V, SDI-12 working current: 31 mA @ 5 V; 18 mA @ 9 V; 14 mA @ 12 V; 10 mA @ 16 V, SDI-12 sleep current: 755 µA @ 5 V; 528 µA @ 9 V; 284 µA @ 12 V; 288 µA @ 16 V
  • Enclosure Material
    ASA Plastic (UV Stabilized), PC (Polycarbonate)
  • Mounting Options
    Wall Mount, Pole Mount
  • IP Rating
    IP65
  • Environment Rating
    Outdoor, Industrial
  • Operating Temperature
    0°C to +50°C
  • Warranty
    2 Years

Document Library

S-CO2-03 Datasheet

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