Modbus Air Quality Detector Product Manual

Function Description

A sensor based on Modbus protocol that can detect gas concentrations affecting air quality. The sensor adopts a multi-layer thick film manufacturing process, with heaters and metal oxide semiconductor gas sensing layers respectively fabricated on both sides of a micro Al203 ceramic substrate, encapsulated in a metal shell. When there is a detected gas in the ambient air, the conductivity of the sensor changes. The higher the concentration of the gas, the higher the conductivity of the sensor. Then convert it into a digital quantity that can be collected using the Modbus protocol through a conversion circuit.

Selection Suggestions

Widely applicable to scenarios such as homes, office buildings, hotels, banks, hospitals, schools, airports, museums, laboratories, factories, etc. that require the detection of gases that affect air quality. It is also suitable for professionals such as weak current integrators and smart home solution engineers to use.

parameter

function

1. It has good sensitivity to isobutane and gases that affect air quality over a wide concentration range.

2. Directly output PPM concentration value, which can intuitively perceive the quality of air.
3. DC12-24V wide voltage supply.
4. Supports Modbus protocol, quickly connects to various industrial control systems
5. Ceiling mounted, compact size.

Modbus Communication Protocol

Address Modification