General description The CSPARKV Multi-Purpose Digital Soil pH Tester is designed for accurate measurement of soil pH, temperature, and humidity. With a compact size of 26×5.3×5.3 cm, this tester is suitable for various applications including farmland production, orchards, soil research, and greenhouse planting. Technical specifications pH measurement range: 2.0 PH - 8.5 PH pH measurement accuracy: ±0.2 PH pH resolution: 0.01 PH Soil temperature measurement range: -10℃ to 60℃ Temperature measurement accuracy: ±1.5℃ Temperature resolution: 0.1℃ Soil moisture measurement range: 1% RH to 84% RH Moisture measurement accuracy: ±4% RH Moisture resolution: 0.1% RH Usage Press the MODE button to switch between soil moisture, temperature, and pH displays. HI is displayed when the measured pH value exceeds 8.5, and LO is displayed when it falls below 2.0. Before each measurement, clean the probe to ensure accurate results. If the soil is too dry, sprinkle some water and wait for half an hour