4 in 1 PH Tester Soil Water Moisture Light Test Meter for Garden Plant Seeding Features： Measures soil pH value, moisture, temperature and sunlight intensity Large and easy-to-read LCD screen Low battery indication 8"(200mm) long probe to reach root-deep into the soil being tested Uses a 9V battery—Included Specifications： Test objects: Sunlight, moisture, PH value, temperature pH measurement range: 3.5-9.0 (display resolution 0.5) Soil temperature measurement range: -9℃～ +50℃(16℉～122℉) (display resolution 1℃/1℉) Power source: one 9V battery (included) Working current: < 30mA Operating temperature: +5℃～ +40℃ (41℉ ～104℉) Working humidity: 5% ～95% RH non-condensing Storage condition: -20 ℃～+50℃, ≤85%(humidity) Weight:73g Package list： 1 X 4-in-1 soil tester ( Included Battery ) 1 X User manual