The soil pH sensor is attached with a water tank to truly realize the online real-time monitoring of soil pH, with high integration, small volume, low power consumption and convenient installation; Measurement range: 0-14ph accuracy: ± 0.1ph resolution: 0.01ph reaction time: < 10s (in water) power supply mode: □ DC 12V output form: □ RS485 instrument line length: 10M working environment: temperature 0 ~ 80 ℃, humidity 0 ~ 95% RH power consumption: 0.2W