Feature:   1. The waterproof and dustproof grade can IP68, ensuring the components to run normally for a long time.    2. PH value within 3-9PH can be measured with high accuracy up to ±0.3PH.    3. High density epoxy resin is used for high temperature vacuum filling between the probe and the body, which can prevent moisture from entering the body interior and has good sealing performance.    4. Suitable for agricultural cultivation, industrial production, environmental monitoring, animal husbandry and sewage treatment.    5. Easy to operate and portable to carry around. High accuracy and quick response, providing fast, accurate and reliable reading data.         Specification:                Condition: 100% Brand New       Item Type: Soil PH Meter       Material: ABS       DC Power Supply (default): 12-24V DC       Power Consumption: ≤ 0.15W (12V DC, 25& 8451;)              Measurement Accuracy: ±0.3PH       PH Measurement Range: 3-9PH       Long-term Stability: ≤5%/y       Output Signal: RS485/0-5V / 0-10V / 4-20mA output       Operating Temperature: 0-55& 8451;       Response : ≤15S       Waterproof Grade: IP68       Size: Approx. 13.5 x 4.5 x 1.4cm / 5.3 x 1.8 x 0.6in       Weight: Approx. 184g / 6.5oz