Note: 1. Don't calibrate instruments in the air. 2. If you don't use it for a long time, please calibrate the instrument before use. 3. After finished, clean the electrode with pure water. Specifications: Type: Water Quality Tester Material: ABS Quantity: 1 （Set accessories colors are random） Note: 1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
eBay
Professional 2 In 1 PH TDS Meter Tester Water Quality Monitor Online Acidity Monitor Analyzers Tester for Aquarium
Aliexpress UK
► Accuracy: pH: +/-0.01 pH; TDS: +/-2%; Temp: 0.5℃. TDS: 0-9999ppm; 10.1-200.0 ppt. ► Accuracy: pH: +/-0.01 pH; EC: +/-2%; Temp: 0.5℃. ► Accuracy: pH: +/-0.01 pH; TDS/EC: +/-2%; Temp: 0.5℃. ► Resolution: 0.01 pH; 1ppm; 1muS/cm; 0.1℃; 0.1degF.
eBay
Yieryi TDS EC PH Salinity Meter ORP H2 S.G TEMP Water Quality Monitor Solution Fertilizer Resistivity Tester for Pools,Aquariums
Aliexpress UK
Flintronic Digital PH Meter, 0.01pH High Accuracy pH Tester, 2% Reading Accuracy
eBay
Digital 6 in 1 Multifunctional Soil PH EC Meter Farm Garden Fertility Moisture Test Detector Sunlight Monitor for Flower Plants
Aliexpress UK
🍀Warm Reminder: 1. The soil tester is specially designed for soil, do not use it to test water or other liquids 2. Do not use it in rocks or other hard soils 3. Our detector is not suitable for sandy and other Loose soil 4.
eBay
YAGO Pool Water Tester Digital Chlorine pH ORP Meter Swimming Pool Water Quality Tester with TDS EC Salinity Temperature CL
Aliexpress UK
Instant acid or alkaline reading. - A reading between 7 and 10 is alkaline. - A reading between 7 is pH neutral, between 3 and 7 is acid. Take two to three readings in different places. Taking a PH reading.
eBay
2 In 1 Chlorine Detector PH & CL2 Meter Swimming Pool Spa Chlorine Monitor Tester Aquarium Hot Spring Water Quality Tester
Aliexpress UK
eBay
2 In 1 Chlorine Detector PH & CL2 Meter Swimming Pool Spa Chlorine Monitor Tester Aquarium Hot Spring Water Quality Tester
Aliexpress UK
4in1 Soil Tester. Usage range : temperature and humidity flower garden, courtyard garden, greenhouse planting and so on. total length of about 31.5cm, probe length 19.5cm, display length 12cm, width 6.5cm; Material: (probe) stainless steel, (shell) ABS plastic.
eBay
Smart PH Chlorine Meter Swimming Pool Water Quality Tester ORP EC TDS Temp CL Level Online Monitoring Analyzer for Spa Aquarium
Aliexpress UK
1° detector. pH test range: 3-8 pH. Resolution: ±0.2 PH. Application: gardening, greenhouse plant, potted plants, arable land, orchard, kindergarten, lawn etc. 2X Clay Bar Cloth Clay Cloth Washing Towel For Car Paint Detailing Cleaning.
eBay
8 in 1 Soil Tester Soil PH EC Meter High Precision Temperature Moisture NPK Fertility Sensor Detector For Garden Or Farm
Aliexpress UK