| Product parameters: | |
| Parameter name | Parameter content |
| DC power supply (default) | 12-24V DC |
| Power consumption | ≤0.15W |
| Measurement accuracy | ±0.3pH |
| PH measurement range | 3-9pH |
| Long-term stability | ≤5%/year |
| Output signal | 4G/NB-IOT/LORA/Ethernet/GPRS/Wifi |
| Working temperature | 0-55℃ |
| Response speed | ≤15s |