ZE92-CH2O formaldehyde gas sensor module
Principle Introduction:
ZE92-CH2O is a general-purpose and miniaturization electrochemical Formaldehyde detection module. It utilizes electrochemical principle to detect CH2O in air which makes the module with high selectivity and stability. It is a combination of mature electrochemical detection principle and sophisticated circuit design.
Applications :
Portable detector, air-quality monitor device, air fresher, fresh air ventilation system, air-condition, smart home device &etc.
Technical parameters :
| Model No. | ZE92-CH2O |
| Target Gas | CH2O |
| Interference Gas | Alcohol, CO &etc. |
| Output Data | DAC(0.4～2V standard voltage output) |
| UART Output(3V Electrical Level) | |
| Working Voltage | 3.7V～9V (No voltage reverse connect protection) |
| Warm up time | ≤3 minutes |
| Response time | ≤ 60s |
| Resume time | ≤ 60s |
| Detection Range | 0～5ppm |
| Resolution | 0.01ppm |
| Operating Temp. | 0℃～50℃ |
| Operating Hum. | 15%RH-90％RH (No condensation) |
| Storage temp. | 0℃～50℃ |
| Working life | 2 years(in air) |
| PIN15 | Vin (Voltage input 3.7V-9V) | |
| PIN5、PIN14 | GND | |
| PIN1 | VOUT(Voltage output 3.0V) | |
| PIN3 | Reserved | |
| PIN4 | Reserved | |
| PIN7 | UART (RXD) 0~3.0V Data input | |
| PIN8 | UART(TXD) 0~3.0V Data output | |
| PIN9 | Sensor Analog signal | |
| PIN10 | DAC 0.4V-2V (0-full measuring range) | |
| PIN2/PIN6/PIN11/PIN12/PIN13 | NC | |
