Rapid Portable Soil Diagnostic Tester

Functions: Detect soil temperature + humidity + conductivity + PH + nitrogen, phosphorus and potassium Display mode: 3-inch TN LCD screen Communication mode: RS485 Communication protocol: Modbus serial communication protocol Response speed: <3s Working temperature: -20°C~50°C Operating humidity: <90% (relative humidity) non-condensing Power supply: 3PCS × 1.5V AA batteries (Not included) Weight: 260g Size: 170*93*29mm Sensor 1: Temperature + Humidity + Conductivity Power supply: 12-24V DC Moisture measurement range: 0-100% Storage environment: -45℃ -115℃ Temperature accuracy: ±0.5℃ Temperature measurement range: -40℃-80℃ (customizable) Moisture accuracy: ±3% in the range of 0-53%. ±5% within 53-100% range Output signal: RS485 Installation: all buried or probe all inserted into the measured medium Conductivity range: 0-10000us/cm Conductivity resolution: 10us/cm Response time: <1s Protection grade: IP68 Power consumption: ≤0.15W(@12V DC, 25℃) Operating pressure range: 0.9-1.1atm Sensor 2: PH DC power supply: 12-24V DC Power consumption: ≤0.15W Measurement accuracy: ±0.3pH PH measurement range: 3-9pH Long-term stability: ≤5%/year Output signal: RS485 output (Modbus protocol) Operating temperature: 0-55℃ Response speed: ≤15s Sensor 3: Nitrogen, Phosphorus and Potassium index Measuring range: 0-1999mg/kg Measuring accuracy: ±2%F.s Resolution: 1mg/kg (mg/l) Working temperature: 5-45℃ Operating humidity: 5-95% (relative humidity), no condensation Baud rate: 2400/4800/9600 Communication port: RS485 Power supply: 12V-24V DCResponse time (T90 sec): less than 10