Product Overview

Rapid Solution for Gas Monitoring

The StoxPro by Germany's EC Sense is an intelligent gas sensor detector that simultaneously outputs two-wire 4-20mA and RS485 Modbus-RTU signals.

Select communication via 4-20mA or RS485 signals as required. Utilize high-reliability solid polymer electrochemical gas detection technology, with intelligent algorithm design.

The gas and humidity temperature monitoring for industrial safety needs have been integrated into a combined design.

This sensor probe is suitable for gas detection in both indoor and outdoor environments, while also monitoring the temperature and humidity inside the Stox housing, providing users with real-time dynamic data of the measured environment.

Due to the close correlation between the chemical properties and motion state of gases with temperature and humidity, the performance of the sensor is also closely related to the temperature and humidity conditions.

This design provides professional data basis for users to analyze and interpret measurement results. Features RS485 output with temperature and humidity signal.

Intelligent dual assessment of gas sensor performance and lifespan, regularly outputting the lifespan and performance indicators of the sensor, regardless of the presence or absence of the measured gas.

并及时 emit warning signals; this feature serves as the foundational basis for data judgment and analysis in intelligent product design, endowing the product with safety and reliability.

Users can obtain information prompts on whether the sensor is operating normally, failed, requiring maintenance, or replacement by outputting signals or RS485 commands.

Each StoxPro gas sensor detector is professionally gas calibrated, ready for direct use by the user. Calibration information is stored in the Flash chip.

For users requiring secondary calibration, calibration can be performed using the EC Sense calibration software via RS485 output, or by directly calibrating the 4-20mA signal.

StoxPro's front cover features three different structural shapes: diffused, flow, and threaded. The diffused design is suitable for detecting gases present in open spaces.

Gases come into contact with the sensor through natural diffusion and convection.

Flow type is applicable when the gas to be tested is actively drawn into the sensor by a gas sampling pump or when the pressure in the gas environment being tested is positive (or with flow) and the gas reaches the sensor through the flow.

Threaded connections are suitable for detecting gas concentrations in sealed spaces and are installed using threaded or flanged sealing methods.

The StoxPro series gas sensor detectors utilize standard 4-20mA or RS485 Modbus-RTU industrial signal protocols, making it easier to quickly set up your own monitoring instruments and systems.

Or interface with display meters, DCS, PLC, and other systems.

Testing Principle

This intelligent sensor detector is a durable product that converts the original weak current signal of the sensor into standard 4-20mA or RS485 Modbus-RTU output through digital circuitry.

Solid-state polymer electrochemical sensing technology represents a revolutionary innovation in the field of electrochemical detection. This technology relies on the principle of electrochemical catalytic reactions to detect the electrochemical reaction output signals of different gases.

Accurately measure gas concentration through a semaphore. The sensor consists of three catalytic electrodes, solid-state electrolyte, and gas diffusion holes. Gas reaches the working electrode of the sensor via the diffusion holes.

Electrochemical oxidation-reduction reactions occur on the porous microsurface of the electrode, solid electrolytes conduct electron transfer, outputting a current signal, the magnitude of which represents the gas concentration.

Structural illustration

Primary Technical Specifications

Note: The temperature and humidity sensor is located inside the StoxPro housing, primarily used for internal environmental measurements within the housing. If temperature parameters are required for external environmental measurements, please calibrate the measurement values.

The ambient gas and the gas inside the shell cannot be exchanged, therefore.

Humidity is only for measurement within the housing.