Type: PH Tester. Accuracy: ±0.2PH; ±0.1PH (20°C). Resolution: 0.1PH. Handheld pen style and compact carrying case makes it conveniently fits in your pocket or bag and goes anywhere. Display: LCD Digital.
eBay
HM Digital PH-80 PH Temperature Meter Hydro With Automatic Calibration Function Water Quality PH Tester Waterproof
Aliexpress UK
eBay
3/4 in 1 Soil pH Tester PH Light Moisture Acidity Tester Soil Tester Moisture Meter Plant Soil Tester Kit for Flowers
Aliexpress UK
ORP negative potential ±1999MV. Salinity 0-20%. The specific gravity of S.G seawater is 1.000-1.222. 2, TDS value 0-200000ppm. H2 hydrogen rich 0-2400PPb. EC value 0-200000㎲/cm. 1x 7 In 1 Tester Pen. PH value 0-14.
eBay
Soil PH Tester 4 in 1 PH Light Moisture Acidity Tester Soil Tester Moisture Meter Plant Soil Tester Kit for Flowers
Aliexpress UK
Wide Range of Applications: Ideal for testing water in aquariums, hydroponics, pools, drinking water, and more.
eBay
3 in 1 Soil PH Tester 4 in 1 PH Light Moisture Acidity Tester Soil Tester Moisture Meter Plant Soil Tester Kit for Flowers
Aliexpress UK
The probe length is 20cm, with a total length of 33cm.
eBay
New 2 in 1 PH Chlorine Meter Chlorine Tester PH Tester Chlorine Water Quality Tester CL2 Measuring For Swimming Pool Aquarium
Aliexpress UK
Ideal for any aquarium, the fishing industry, swimming pools, spa. school laboratories, food & beverage, drinking water etc. readings are quickly display on a large lcd display.
eBay
High Accurancy Soil PH Tester Soil Moisture/PH/Temperature Sunlight Intensity Testers Garden Planting Soil Detector Soil PH Test
Aliexpress UK
The probe length is 20cm, with a total length of 33cm.
eBay
6 in 1 High Accurancy Soil PH Tester Soil Moisture PH Temperature Sunlight Fertility Testers Garden Planting Soil Detector
Aliexpress UK
Mini TDS Pen Design: Portable, lightweight, and compact for on-the-go water testing. Widely Used: Ideal for testing in professional and personal settings, including aquariums, hydroponics, pools, and drinking water systems.
eBay
Digital Chlorine Meter PH Tester 7 In 1 SALT/ ORP/ TDS/EC/TEMP Tester CL Water Quality Analyzer for Swimming Pool Hot Spring
Aliexpress UK