HomeHydroponicspH Control and TestingPage 39 pH Control and Testing Showing 457–468 of 552 results Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sort by editor review Added to wishlistRemoved from wishlist 0 Soil Test Kit $33.33 Buy Now + Added to wishlistRemoved from wishlist 0 Soil Test Kit – Discover Your Lawn and Garden Fertility with pH, Nutrient and Mineral Analysis. Professional Results Provide Custom Fertilizer Prescription for Your Yard, Without Trowel, Single Pack $31.95 Buy Now + Added to wishlistRemoved from wishlist 0 Soil Test Kit -140 Test- Testing PH Ammonia Nitrogen Phosphorus and Potassium – Tester for Your Vegetable Garden Lawn and Soil $16.99 Buy Now + Added to wishlistRemoved from wishlist 0 Soil Test Kit 3-in-1, Soil PH Meter, Soil Moisture Meter, Fertility Soil Tester, Soil Tester for Garden, Lawn, Farm, Indoor & Outdoor Use (No Battery Required) $16.95 Buy Now + Added to wishlistRemoved from wishlist 0 Soil Tester 3 in 1, 3 in 1 Soil ECTempHumidity Tester Gardening Tool Kits LED Display with Backlight for Garden, Greenhouses, Gas, Soil Test Kits $40.15 Buy Now + Added to wishlistRemoved from wishlist 0 Soil Tester Instrument, PH Value/Sunlight Intensity/Moisture/Temperature, 4 in 1 Garden Farm Helper, Potted Plants Test $43.90 Buy Now + Added to wishlistRemoved from wishlist 0 Soil Tester kit 3 in 1 Multifunctional Fertility Moisture PH Meter Gardening Soil Moisture Meter Sensor, Garden Test kit for Garden, Farm, Plant, Outdoor, Indoor, Lawn $14.69 Buy Now + Added to wishlistRemoved from wishlist 0 Soil Tester Moisture Meter Humidity Monitor for Garden Planting $11.36 Buy Now + Added to wishlistRemoved from wishlist 0 Soil Tester NPK Sensor, Intelligent Nutrient Fertilizer Detector, Digital Gardening Tool for N, P and K, Soil Test Kit for Garden, Lawn, Farm, Indoor & Outdoor Use $247.99 Buy Now + Added to wishlistRemoved from wishlist 0 Soil Tester PH Meter Soil Tester Acidity Humidity Sunlight Moist Instrument Tool for Garden Plants Soil Testing Detectors $44.96 Buy Now + Added to wishlistRemoved from wishlist 0 Soil Tester, High Accurate Soil Sensor Soil Test Kit Soil Nutrient Intelligent Fertilizer Tester Meter for Garden, Farm, Plant, Outdoor $41.49 Buy Now + Added to wishlistRemoved from wishlist 0 Soil Tester, Multipurpose Soil Meter Soil Moisture Meter Soil Temperature Tester for Farm for Greenhouses for Garden for Orchards $53.66 Buy Now + ← 1 2 3 … 36 37 38 39 40 41 42 … 44 45 46 →