Neewer PH 009 IA PEN Type PH Meter Digital Tester Hydro ES 11 | eBay
Does something like this work?
Professional PH Meter Temperature High Accuracy ±0 05PH | eBay
4 IN1 Professional LCD Temperature Moisture Sunlight PH Garden Soil Tester Meter | eBay
Or do I need to spend more for desired results?
Does something like this work?
Professional PH Meter Temperature High Accuracy ±0 05PH | eBay
4 IN1 Professional LCD Temperature Moisture Sunlight PH Garden Soil Tester Meter | eBay
Or do I need to spend more for desired results?