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9 in 1 Digital Soil Tester
A multi-parameter soil tester that reads nitrogen, phosphorus, potassium, pH, EC, moisture, temperature, salinity and fertility from a single probe. Comparing the available soil readings together can give more context...
8 in 1 Soil Tester for Plants with NPK | Yieryi
This 8-in-1 soil tester for plants reads pH, moisture, EC, temperature, light, and an NPK estimate, and sends the data to your phone. Unlike USB-only probes, it works with both...