SUNNIOR Soil PH Meter, 3-In-1 Plant Soil Tester Kit With PH, Light & Moisture acidity Meter Tester Great Plants Care Tool for Farm, Lawn, Flowers, Vegetable Indoor/Outdoor (No Battery needed)

Specification: Meter: 5 x 8 x 4.5cm [2 x 3.2 x 1.5"] Probe length: 20cm [8"] Bronze probe diameter: 4.8mm silver probe diameter: 5.1mm Distance between probes: 1.2cm Original box: NO Color: Green Item size: 275*45mm Net weight: 90g How To Use:  Step 1: Inset the probe of the meter to the plants' roots about 2-4 inches  Step 2: Adjust the position of the probe until the pointer on the dial swings slightly  Step 3: After several minutes, Note moisture level in the dial  Step 4: Remove probe from soil and wipe clean after each use Test Range:  pH Range: 3.5-8 Ph (3.5-6.5 ACID, 7 NOR, 7-8 ALKALI) Moisture Range: 1-10 (1-3 DRY, 4-7 NOR, 8-10 WET) Relative Light: 0-2000 lux (0-200 LOW, 200-500LOW+, 500-1000 NOR 1000-2000 HGH Tips: 1. without touching the stone, don't too hard, easy to damage the probe 2. After using, need to clean and wipe the probe (can't test the water) 3. Don't inserted in the soil for a long time for using 4. Design for testing soil, don't use it to test pure water or too rigid ground Package include: 1 x 3 in 1 Moisture / PH / Light Meter Soil Garden Tester