SenseCAP CO2, Temperature & Humidity Probe — RS485 / SDI-12
The CO2, temperature, and humidity sensor supports Modbus-RTU/ASCII RS485 and SDI-12 communication protocols, built-in calibration functionality, and is compact in size, making it widely applicable in greenhouses, cities, poultry farms, transportation stations, and other application scenarios where CO2 level is needed.
Product Overview
The CO2, temperature, and humidity sensor supports Modbus-RTU/ASCII RS485 and SDI-12 communication protocols, built-in calibration functionality, and is compact in size, making it widely applicable in greenhouses, cities, poultry farms, transportation stations, and other application scenarios where CO2 level is needed.
Features
- 3-in-1 sensor: Measure Carbon dioxide(CO2), air temperature, relative humidity
- Wide Range & High Accuracy of CO2: 0ppm ~ 10,000 ppm, ± (40ppm+3%*MV)
- High performance: high accuracy, fast response, and superior stability
- Wide-range Power Supply and 2 protocols: 5V ~ 24V power supply, support RS485(Modbus -RTU / Modbus -ASCII) and SDI-12 protocols
- User-friendly: factory-calibrated, supports custom calibration by pressing keys or using commands, easy to install and integrate
This is a digital CO2 concentration sensor based on NDIR (nondispersive infrared), which can continuously collect and calculate the CO2 concentration in the air per unit volume and output in the form of a universal interface. It’s designed to adopt PTFE film combined with a protective enclosure, improving its breathable performance. It is more accurate, stable, reliable, low-power consumption, and user-friendly. It compacts in size and can be easily integrated into various application scenarios.
This digital NDIR CO2 concentration sensor supports RS485(Modbus -RTU / Modbus -ASCII) and SDI-12 communication protocols and is compatible with the wide power supply voltage of 5-24V. It has a built-in calibration functionality and can be widely applied in both indoor and outdoor environments. This product also adopts both single-air-chamber and double-channel. This CO2 Sensor (Version CO2-Connector) comes with a waterproof aviation connector, helping you save time and effort in wiring the sensor to a data logger with screws.
Connect with 4G Sensor Hub or LoRaWAN Data Logger for Remote Transmission
We offer the SenseCAP S2100 – LoRaWAN® Data Logger – and SenseCAP Sensor Hub 4G Data Logger suitable for SenseCAP ONE series weather sensors, you can transmit the sensor data to public LoRaWAN® network servers(Helium, TTN, etc.,) or private servers.
Applications
- Smart Agriculture
- Smart Cities
- Industry and Building ventilation systems
- Airport, train station, shopping mall, home, office, classroom, and others
- public places for air quality measurement and indication
- Lab, warehouse, and other places to monitor the CO2 level
Specifications
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Basic Parameters |
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Product Model |
S-CO2-03A / S-CO2-03B |
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Supply Voltage |
5 ~ 24 V |
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Supporting Protocols |
Modbus -RTU RS485/ Modbus -ASCII RS485/ SDI-12 (v1.4) |
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IP Rating |
IP65 (shading measures are required for outdoor installation, and the equipment cannot be exposed to direct sunlight and rainwater for a long time) |
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Operating Temperature |
0°C ~ +50°C (Due to CO2 sensor limitations) |
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Working Humidity |
0 ~ 95 %RH (no condensation) |
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Cable Length |
2 meters |
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Measurement Parameters |
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Range |
Accuracy |
Resolution |
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Carbon Dioxide |
0 ~ 10000ppm |
±(50ppm+3%*MV） |
1ppm |
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Air Temperature |
-40~85°C |
±0.2℃ |
0.01°C |
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Air Humidity |
0~100%RH |
±1.8%RH |
0.01%RH |
Wiring Diagram and Calibration Button
Sensor onboard a switch and a button:
- Switch: select protocols(RS485/SDI-12), default is RS485.
- Button: press the button for 5 seconds can calibrate the sensor value to 400ppm.
Part List
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Sensor |
x1 |
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Mounting Bracket |
x1 |
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Self-drilling Screw – 2cm |
x4 |
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Self-drilling Screw – 6mm |
x3 |
Policies & Guidelines
Warranty, shipping, and purchasing information
- All prices are stated in US dollars (USD), unless otherwise indicated.
- Full payment must be received and confirmed before an order is prepared or dispatched.
- Payment may be made by bank transfer, Bitcoin, or USDT. The payment methods available for each order are displayed at checkout.
- Shipping charges are shown separately at checkout. The quoted shipping charge includes applicable import duties, taxes, and customs-clearance charges for the delivery destination.
- An electronic invoice is made available in the Customer’s account after payment confirmation. An official sales invoice also accompanies the shipment.
- Orders may be cancelled for a full refund before order preparation begins. Once preparation has begun, cancellation is subject to the order’s processing status.
- A Customer wishing to return a non-defective product must request the return within 30 days of delivery. The product must be returned in good condition with its official sales invoice.
- For a non-defective return, the Customer is responsible for return shipping. The refund covers the product price only; the original shipping charge is not refundable.
- Refunds for returned products are initiated after the returned goods have been received and their condition verified. Approved refunds are initiated within seven business days and returned through the original payment method.
- The refundable amount is based on the USD value paid for the product. Refunds for Bitcoin or USDT payments are calculated against that USD amount, rather than a fixed quantity of cryptocurrency. The time required for funds to reach the Customer depends on the payment method and processing provider.
- All devices, sensors, and accessories purchased directly from SenseCAP are covered by a one-year warranty from the date of delivery.
- Warranty eligibility is verified against the original sales record and, where available, the product serial number. For products without a serial number, the order details and official sales invoice are used to identify the purchase.
- The warranty covers manufacturing defects and internal hardware failures arising under normal use and within the product’s specified operating conditions.
- Products that arrive damaged or non-operational should be reported to SenseCAP so that the appropriate shipping or warranty procedure can be arranged.
- Warranty claims are assessed through technical review. Depending on the findings, the resolution may include remote assistance, replacement parts, repair, or an equivalent replacement.
- Customers must obtain return authorization and shipping instructions before sending a product for warranty service.
- For an authorized warranty return, the Customer pays the cost of shipping the product to the designated service location. SenseCAP pays standard shipping for the repaired or replacement product back to the Customer.
- Warranty service addresses the supplied hardware. Network availability, connectivity, subscription services, and any network-based rewards depend on their respective operating requirements and are not guaranteed by the hardware warranty.
- Orders are shipped on a Delivered Duty Paid (DDP) basis to all available delivery destinations.
- The shipping charge displayed at checkout includes transportation, applicable import duties, taxes, and customs clearance. These import charges are not payable separately by the recipient.
- Products with a stated dispatch date are scheduled according to the date shown on the product page. Where no dispatch date is stated, the product is ready for dispatch and is handed over to the carrier within two business days after payment confirmation.
- Dispatch dates refer to handover to the carrier, not delivery to the Customer. Transit time depends on the destination and carrier service.
- Each shipment is accompanied by an official sales invoice and declared using an accurate product description, invoice value, and applicable customs classification.
- Tracking information is provided after the shipment has been handed over to the carrier.
- Customers are responsible for providing an accurate delivery address and any recipient information required to complete delivery and customs formalities.
- Shipping damage should be reported promptly. Customers should retain the product, original packaging, shipping labels, and invoice while the claim is assessed.
- If a shipment is lost or damaged, SenseCAP will review the case with the carrier and advise the Customer of the applicable resolution. Where the issue results from a packing or documentation error attributable to SenseCAP, the resolution may include repair, replacement, or refund.
Policy & Support Pages
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