![I want to buy a soil PH meter, I don't want more deficiencies guessings. I found in Amazon the Bluelab Meter but there are two models, the second model cost twice but I want to buy a soil PH meter, I don't want more deficiencies guessings. I found in Amazon the Bluelab Meter but there are two models, the second model cost twice but](https://i.redd.it/et2sqdr5z0h41.jpg)
I want to buy a soil PH meter, I don't want more deficiencies guessings. I found in Amazon the Bluelab Meter but there are two models, the second model cost twice but
![Amazon.com : Bluelab PENSOILPH Soil pH Pen, Digital Meter and Water Test Kit, Also Used for Coco and Rockwool with Easy Calibration for Hydroponic System and Indoor Plant Grow, Clear : Soil Amazon.com : Bluelab PENSOILPH Soil pH Pen, Digital Meter and Water Test Kit, Also Used for Coco and Rockwool with Easy Calibration for Hydroponic System and Indoor Plant Grow, Clear : Soil](https://m.media-amazon.com/images/I/81oER35aHIL.jpg)
Amazon.com : Bluelab PENSOILPH Soil pH Pen, Digital Meter and Water Test Kit, Also Used for Coco and Rockwool with Easy Calibration for Hydroponic System and Indoor Plant Grow, Clear : Soil
![Bluelab PENSOILPH Soil pH Pen - medidor digital para suelo, agua, coco, lana de roca y soluciones nutritivas, con fácil calibración - medición de acidez : Amazon.es: Otros Productos Bluelab PENSOILPH Soil pH Pen - medidor digital para suelo, agua, coco, lana de roca y soluciones nutritivas, con fácil calibración - medición de acidez : Amazon.es: Otros Productos](https://m.media-amazon.com/images/I/61CfI40cy1L._AC_SX425_.jpg)
Bluelab PENSOILPH Soil pH Pen - medidor digital para suelo, agua, coco, lana de roca y soluciones nutritivas, con fácil calibración - medición de acidez : Amazon.es: Otros Productos
![Bluelab PH Soil Electrode (For Multimedia Monitor PH Meter with Soil Probe) | PHEC0151 | Natural Systems Bluelab PH Soil Electrode (For Multimedia Monitor PH Meter with Soil Probe) | PHEC0151 | Natural Systems](https://newapi.naturalsystems.es/p/PHEC0151/PHEC0151-00.png)