Product Description
S-PH Sensor: Ultra-stable solid AgCl + pure metal electrode replaces fragile glass forever. High precision, built-in temperature compensation, fully sealed and reverse-connection-proof. Bury it and forget it — accurate pH monitoring for greenhouses, precision irrigation, and research. Reliable, maintenance-free, born for soil/substrate!
Technical Parameters
| Parameter | Specification |
|---|---|
| Item No. | S-PH |
| Measuring Range | pH 3 ~ 10 |
| Output Signal | RS485 / RS232 / UART, MODBUS-RTU protocol |
| Accuracy | < 0.25 pH |
| Interchange Accuracy | < 0.25 pH |
| Repetition Error | < 0.2 pH |
| Temperature Compensation | 0 ~ 50 °C |
| Power Supply | 2–5 V DC (Max 6 V) or 5–24 V DC (Max 26.7 V) |
| Quiescent Current | Peak < 50 mA, Average < 2 mA |
| Response Time | 2 ~ 15 s (adaptation) |
| Stabilized Time | 30 min ~ 24 hours |
| Ingress Protection | IP68 |
| Working Temperature | -10 °C ~ 70 °C |
| Cable Length | 3.5 m (standard); custom lengths available |
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