Feature:
| Parameter |
Value |
Unit |
| Effective range |
0-1 |
mg/m³ |
| Maximum range |
2.5 |
mg/m³ |
| Resolution |
0.01 |
mg/m³ |
| Accuracy |
|
FS |
| Response time (T90) |
<30 |
S |
| Useful life |
3~5 |
Year |
| Operating temperature |
0-55 |
°C |
| Working humidity |
0-95 |
% |
| Operating Voltage |
3.3±10% |
V |
DS-HCHO uses P2P call response mechanism
The host sends a command format with a total of 7 bytes
| Start character 1 |
Start character 2 |
Command character |
Data H |
Data L |
Check H |
Check H |
| 0x42 |
0x4d |
CMD |
DHH |
DLL |
LRCH |
LRCL |
Format description:
Start character 12 is a fixed character 0x42 0x4d
Command character CMD bit Host to device command parameters
Data HL is the high and low bytes of data sent by the host to the device
Check HL for data packet and check high and low byte respectively
| Number |
Command description |
Symbol |
| 1 |
Query detection value |
0x01 |
| 2 |
Clear |
/ |
| 3 |
SPAN calibration |
/ |
| 4 |
Restore factory default |
/ |
| 5 |
/ |
/ |
Package includes:
1 x Sensor Detector
