Backlight Display Water Quality Tester.
eBay
8 In 1 Digital Tester Pen Pool Water Quality Monitor.
eBay
High precision fast testing of soil acidity;. 1 x Soil Acidity pH Tester. Display: pointer. pH accuracy: ± 0.1pH. Suitable for fast pH reference of vineyards, orchards, field production, plants care, lawn maintenance, garden, plant;.
eBay
Type: Digital pH Tester. Accuracy: ±0.2 pH; ±0.1 pH (at 20°C). Resolution: 0.1 pH. Display: LCD Digital. Weight: 52g.
eBay
PH electrode probe only, other accessories demo in the picture is not included! 1 x PH Electrode Probe. Suitable for aquarium, hydroponics, laboratory, etc. Size: Approx. Due to the difference between different monitors, the picture may not reflect the actual color of the item.
eBay
Multifunctional, can test ph/ORP/EC/TDS and temperature. Lightly used for testing pH in brewing.
eBay
Range: ph 0.00-14.00ph. Accuracy :ph ±0.1ph. Resolution : ph 0.01ph. Battery :DC6V ( with power adaptor) not included.
eBay
Different nutrients are absorbed in different ways at different pH levels. For this reason, it's very important that your nutrient solution is maintained to sit within optimal pH ranges, otherwise you'll encounter deficiencies that will stress your plants and stunt their growth.
eBay