YJJ TGS822 Alcohol Detection Sensor Ethanol Gas Detection Module Alarm Threshold Serial Port Output

Product Description:

TGS822 Alcohol Detection Sensor Ethanol Gas Detection Module Alarm Threshold Serial Port Output

Features:

Gas-sensitive element of the Figaro gas sensor uses tin dioxide (Sno2), which has a low conductivity in clean air. When the detected object gas is present, the conductivity of the sensor increases with the increase of the gas concentration in the air. A simple circuit can be used to convert the change in conductivity into an output signal corresponding to the concentration of the gas. TGS822 sensor has high sensitivity to alcohol and organic solvents, and is widely used in alcohol detectors. The TGS823 with the same characteristics uses a ceramic base and can be used in a high temperature atmosphere of 200 ° C.

1. With power indicator and threshold alarm indicator

2. Using serial communication, reading 0-5V voltage directly from the computer through USB to TTL (the higher the voltage concentration, the higher the voltage)

3. A threshold of 0-5V can be set to compare with the obtained alcohol concentration voltage

4. Alarm polarity can be set. AT+P+1rn indicates TTL output 1 when the alarm light is on outside the upper and lower threshold, otherwise output 0; AT+P+0rn indicates that the alarm light is on within the upper and lower threshold, TTL output 1, otherwise output 0. Can be directly connected to MCU IO port or relay

5. It has high sensitivity and good selectivity to ethanol vapors. 6. Fast response and recovery characteristics

7. Working voltage :7~12V

Specifications:

Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, photodiodes, Japan FIGARO, UK CITY, ALPHASENSE full range of semiconductors, catalytic, electrochemical gas sensors, French HUMIREL/MEAS humidity sensors and other international well-known companies authorized agents or distributors, to provide customers with product information, products Solutions, product selection, supply guarantee and logistics services, etc.