S-PH Soil/Substrate PH Sensor

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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