3 IN 1 SOIL PH /MOISTURE/LIGHT/ METER Specification Power supply: No Battery Required Probe Length: 20cm Weight: 120g Color: Green PH Range: 3.5-8 pH (3.5-6.5 Acid, 7-8 Alkaline) Moisture Range: 1-10 level (1-3 Dry, 4-7 Nor, 8-10 Wet) Blister Card: 0-2000 lux (0-200 Low, 200-500 Low+, 500-1000 Nor, 1000 ORIGIN: GABY INSTRUMENTS