Seeed Studio S-NH3-01 Industrial-Grade RS485 NH3 Sensor with Temperature and Humidity Monitoring

Seeed Studio S-NH3-01 Industrial-Grade RS485 NH3 Sensor with Temperature and Humidity Monitoring

• Precise Ammonia (NH3) Gas Detection
• RS485 Interface for Reliable Data Communication
• High Sensitivity and Fast Response
• Durable Design for Industrial Environments
• Easy Integration with Monitoring Systems

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€166,00 €208,00
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Product Description

The SenseCAP RS485 NH3 Sensor Connector, model S-NH3-01, is a state-of-the-art ammonia detection device, ideal for a variety of industrial and environmental monitoring tasks. This advanced sensor utilizes revolutionary solid polymer electrochemical technology, making it exceptionally reliable for detecting ammonia gas concentrations. It's highly suitable for applications in livestock farming, heavy industry, and atmospheric monitoring. The sensor's innovative design ensures high sensitivity and accuracy in ammonia detection, while its robust construction and IP65 rating make it perfect for harsh environments. Additionally, it offers the convenience of monitoring air temperature and humidity, enhancing its versatility.

Product Features

  • Advanced solid polymer electrochemical technology for precise ammonia detection.
  • Simultaneously monitors ammonia concentration, air temperature, and humidity.
  • High resistance to temperature fluctuations and ammonia gas exposure.
  • User-friendly setup with adjustable settings for diverse applications.
  • Compatible with MODBUS-RTU RS485 protocol for seamless integration.
  • IP65 rated, ensuring durability in challenging environmental conditions.
  • Optimal performance in a wide range of temperatures and humidity levels.
  • Supplied with a 2-meter cable for flexible installation.
  • Ideal for use in livestock farming, industrial gas leak detection, and atmospheric monitoring.

Product Downloads

The basic parameters
Product model S-NH3-01
Supply Voltage 5 ~ 24V DC (recommended 5V power supply).
Supported Protocol MODBUS-RTU RS485
IP Rating IP65 (The equipment should be protected from direct sunlight and rain over long periods of time).
Operating Temperature -40°C to 50°C (best operating temperature 20 to 35 °C).
Operating Humidity 15 to 95% RH (non-condensation) (best operating humidity 50%RH).
Ambient Pressure Atmospheric pressure ±10%.
Cable Length 2 meters
Measurement Parameters
Measurement Measurement accuracy Resolution
Ammonia 0~100 ppm typ. ±5%F.S, max ±10%F.S 0.1 ppm
Temperature -40~50 °C ± 0.5 °C 0.1 °C
Humidity 10~95 %RH ± 5% 0.1 %RH
Operating Current 6mAMax5V DC);3.2mA(typ.12V DC)
Performance reference
Parameter Min Typical value Max Unit
RS-485 mode Warm-up Time [1] 5[2] minutes
Poll Rate [3] 1 seconds
Response time[4] 30 seconds

Shipping Policy

We provide worldwide shipping using reliable tracked
shipping services.

Local Shipments within Cyprus

Shipments in Cyprus are performed usually with ACS Courrier
or AKIS Express. In some cases, we might deliver the products ourselves. A pick-up
option from our locations is also available.

International Shipments

International shipments are performed using Express Airway
Shipping Services. We are currently shipping orders with TNT Express and FedEX.
As soon as your shipment is dispatched you will receive the shipment confirmation
including the shipment tracking number which you can use to track your order
from the shipment provider website.

We dispatch orders within 1-3 workdays after the day of the
order placement. 

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 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:
  • Telephone: +357 22 282828