Features:1. Backlight design: Large LCD screen design with backlight for clear display and more convenient to read. Insert the electrodes of the tester into the soil and waited for a few seconds to get the data on the LCD screen.2. Highly sensitive probes: Adopting alloy electrodes for higher sensitivity and durability. Turn on the tester, insert the probe into the soil for 5cm and the measurement data will be displayed after about 3 seconds. Wipe the electrode after measurement to keep it clean.3. Lock button: After the value is stable, click the hold button to lock the current value. If you need to re-measure, please press the hold button again.4. Wide range of applications: Can be used for Potted planting, Scientific experiment, Orchard planting, Grassland and pasture, Agricultural planting, etc. experiment, Orchard planting, Grassland and pasture, Agricultural planting, etc.Specifications:Screen: LCD backlight displaySingle tester Power supply: 3* 1.5V LR44 button cell (No including)Measuring depth: 3-13.8cmNitrogen measurement range: 0-1999mg/kgPhosphorus measurement range: 0-1999mg/kgPotassium measurement range: 0-1999mg/kgTemperature measurement range: -30C-80CColour:white & greenMaterial:ABS+metalThe actual product may have slight color difference or difference, which will not affect the use Package Contents:1 * nitrogen tester1 * phosphorus tester1 * potassium tester Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.