Product Introduction
SMT-038 is a semiconductor type gas sensor used to detect ozone components in the environment. The conductivity of the sensor's sensitive material changes with the change in ozone concentration. Using a simple test circuit, this change in conductivity is converted into a signal output corresponding to the change in gas concentration, thereby achieving gas detection. The sensor is packaged in a four-pin metal shell and is a low-cost sensor suitable for a variety of applications.
Sensor Characteristics
● High sensitivity
● Fast response and recovery time
● Long life
● Low cost
● Simple test circuit
Main Application
● Civilian ozone alarm
● Portable ozone alarm
● Industrial ozone alarm
For more information, Please check our product datasheet or send the consultation to us.
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|
Item |
Parameter |
|
Detection Gas |
Ozone |
|
Detection Concentration Range |
0～100ppm(O3 ) |
|
Heating Voltage(VH) |
5V±0.1V DC or PWM |
|
Sensor Voltage |
≤24V DC |
|
Heating Element Resistance (RH) |
65Ω±10Ω (room temperature) |
|
Heating Power (PH) |
≤450mW |
|
Sensitivity (S) |
Rs(in air)/Rs(100ppm O3)≥ 0.5V |
|
Output Voltage (VS) |
≥0.5V (in 100ppm O3) |
|
Concentration Response Ratio |
≤0.6(R200ppm/R50ppm O3) |
|
test Environment |
20℃±2℃; 55%±5%RH |
|
Life Time |
5 years |
