| Working principle |
Electrochemical |
| Measurement range |
HCHO: 0~1ppm |
| VOC: 0~10ppm（equivalent alcohol concentration） |
| TVOC: 0~10ppm（equivalent alcohol concentration） |
| HOCHO Measurement accuracy |
≤0.1ppm：±0.025ppm |
| >0.1ppm：±25% reading（Reference instrument: Gaseraone，25±2℃，50±10%RH） |
| Resolution |
HCHO: 1ppb |
| VOC: 0.01ppm |
| TVOC: 0.01ppm |
| Response time T90 |
50s（@25±2℃，50±10%RH） |
| Working condition |
0~40℃；15~95%RH（Non-condensing） |
| Storage condition |
-20~50℃；0~95%RH（Non-condensing） |
| Working voltage |
DC (+3. 5V ~ +5.5V) |
| Working current |
<15mA |
| Signal Output |
1. UART_TTL（3.3V） |
| 2. IIC（Reserved） |
| 3. PWM（Reserved） |
| Dimension |
W23*H32*D7 |
| Lifetime |
3 years (@0.1ppm Formaldehyde concentration) |
