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![Waterproof Digital 3 in 1 PH EC 0.01 Meter with Automatic temperature compensation for aquarium](https://ae01.alicdn.com/kf/HTB1ufWVh.QIL1JjSZFhq6yDZFXaJ/Waterproof-Digital-3-in-1-PH-font-b-EC-b-font-0-01-font-b-Meter.jpg_220x220.jpg)
Waterproof Digital 3 in 1 PH EC 0.01 Meter with Automatic temperature compensation for aquarium
US $54.52
/ piece
![Multi-parameter 3 in 1 TDS tester Water meter EC temperature Monitor for Aquarium Drink Water Quality](https://ae01.alicdn.com/kf/HTB1kpEMXE6FK1Jjy0Foq6xHqVXah/Multi-parameter-3-in-1-TDS-tester-Water-font-b-meter-b-font-font-b-EC.jpg_220x220.jpg)
Multi-parameter 3 in 1 TDS tester Water meter EC temperature Monitor for Aquarium Drink Water Quality
US $35.72
/ piece
![PH pen Tester LCD Digital display + TDS EC meter Filter Water quality Pool Water Measurement Tool](https://ae01.alicdn.com/kf/HTB1Z9YlcTZRMeJjSspoq6ACOFXaJ/PH-pen-Tester-LCD-Digital-display-TDS-font-b-EC-b-font-font-b-meter-b.jpg_220x220.jpg)
PH pen Tester LCD Digital display + TDS EC meter Filter Water quality Pool Water Measurement Tool
US $23.65
/ piece
![High Accuracy Portable 3-in-1 Digital Pen-type Water Quality Conductivity TDS Meter, ppm ppt uS mS C/F](https://ae01.alicdn.com/kf/HTB1UGpZKXXXXXbCXpXXq6xXFXXXy/High-Accuracy-Portable-3-in-1-Digital-Pen-type-Water-Quality-Conductivity-TDS-Meter-ppm-font.jpg_220x220.jpg)
High Accuracy Portable 3-in-1 Digital Pen-type Water Quality Conductivity TDS Meter, ppm ppt uS mS C/F
US $33.90
/ piece
![PH-026 PH026 High accuracy PH/TDS/EC Monitor PH Meter](https://ae01.alicdn.com/kf/HTB1IEpdIXXXXXasXFXXq6xXFXXXx/PH-026-PH026-High-accuracy-PH-TDS-font-b-EC-b-font-Monitor-PH-font-b.jpg)
PH-026 PH026 High accuracy PH/TDS/EC Monitor PH Meter
US $81.00
/ piece
US $90.00 / piece
US $90.00 / piece
![High accuracy Multifunction Multi-parameter Meter PH-027 PH027 TDS/PH/EC/CF Meter Water Quality analyzer PH Tester](https://ae01.alicdn.com/kf/HTB1.2XhIXXXXXXgXFXXq6xXFXXX5/High-accuracy-Multifunction-Multi-parameter-font-b-Meter-b-font-PH-027-PH027-TDS-PH-font.jpg)
High accuracy Multifunction Multi-parameter Meter PH-027 PH027 TDS/PH/EC/CF Meter Water Quality analyzer PH Tester
US $108.00
/ piece
US $120.00 / piece
US $120.00 / piece
![PH-02726 PH02726 Digital PH/TDS/EC Monitor PH meter](https://ae01.alicdn.com/kf/HTB1xFFjIXXXXXb5XpXXq6xXFXXXl/PH-02726-PH02726-Digital-PH-TDS-font-b-EC-b-font-Monitor-PH-font-b-meter.jpg)
PH-02726 PH02726 Digital PH/TDS/EC Monitor PH meter
US $87.30
/ piece
US $97.00 / piece
US $97.00 / piece
![72x72mm Temperature Humidity Controller TDK0302LA Thermostat Hygrostat Control Thermometer Hygrometer with Dual Sensor](https://ae01.alicdn.com/kf/HTB1q30fJVXXXXX0XXXXq6xXFXXX0/72x72mm-Temperature-font-b-Humidity-b-font-font-b-Controller-b-font-TDK0302LA-Thermostat-Hygrostat-Control.jpg_220x220.jpg)
72x72mm Temperature Humidity Controller TDK0302LA Thermostat Hygrostat Control Thermometer Hygrometer with Dual Sensor
US $37.86
/ piece
US $41.60 / piece
US $41.60 / piece
![90~240V 10A Digital Temperature Controller Thermocouple sensor Thermostat Measuring Range -50~110 Degree with Sensor Thermometer](https://ae01.alicdn.com/kf/HTB1ATp5LVXXXXb8XXXXq6xXFXXXh/90-240V-10A-Digital-Temperature-font-b-Controller-b-font-Thermocouple-sensor-Thermostat-Measuring-Range-50.jpg_220x220.jpg)
90~240V 10A Digital Temperature Controller Thermocouple sensor Thermostat Measuring Range -50~110 Degree with Sensor Thermometer
US $10.68
/ piece
US $11.87 / piece
US $11.87 / piece
![Multi-parameter Digital ph meter Professional 7 in 1 Water Testing Meter Monitor ORP / pH / RH / EC / CF / TDS(PPM) / TEMPTester](https://ae01.alicdn.com/kf/HTB12aT4KpXXXXchXpXXq6xXFXXXI/Multi-parameter-Digital-ph-font-b-meter-b-font-Professional-7-in-1-Water-Testing-font.jpg_220x220.jpg)
Multi-parameter Digital ph meter Professional 7 in 1 Water Testing Meter Monitor ORP / pH / RH / EC / CF / TDS(PPM) / TEMPTester
US $83.92
/ piece
US $127.15 / piece
US $127.15 / piece
![hot sales TDS EC Meter temperature -50C-70C 3 in 1 Multi-parameter Purity water quality for Swimming Pools](https://ae01.alicdn.com/kf/HTB1iU7MJFXXXXaXXFXXq6xXFXXXk/hot-sales-TDS-font-b-EC-b-font-font-b-Meter-b-font-temperature-50C-70C.jpg_220x220.jpg)
hot sales TDS EC Meter temperature -50C-70C 3 in 1 Multi-parameter Purity water quality for Swimming Pools
US $19.20
/ piece
![2 PCS Portable PH Meter + TDS Meter Tester EC LCD TDS Water Purity PPM Filter Hydroponic Pool Tester Pen 152 x 29 x 20mm](http://g02.a.alicdn.com/kf/HTB1b.GWJVXXXXX1aXXXq6xXFXXXY/2-PCS-Portable-PH-font-b-Meter-b-font--font-b-TDS-b-font-font.jpg_220x220.jpg)
2 PCS Portable PH Meter + TDS Meter Tester EC LCD TDS Water Purity PPM Filter Hydroponic Pool Tester Pen 152 x 29 x 20mm
US $25.15
/ lot
US $26.47 / lot
US $26.47 / lot
![Portable Pen Type Digital TDS Meter Tester and Reverse Osmosis membrane Filter Water Quality Purity New Free Shipping](http://g01.a.alicdn.com/kf/HTB1RV.CJFXXXXXDXVXXq6xXFXXX8/Portable-Pen-Type-Digital-font-b-TDS-b-font-font-b-Meter-b-font-Tester-and.jpg_220x220.jpg)
Portable Pen Type Digital TDS Meter Tester and Reverse Osmosis membrane Filter Water Quality Purity New Free Shipping
US $19.36
/ piece
US $22.00 / piece
US $22.00 / piece
![Digital Pen Tester pH EC TDS Salinity Temperature Water Quality 6-in-1 Meter](http://g02.a.alicdn.com/kf/HTB1ErFkKpXXXXbfXXXXq6xXFXXXD/Digital-Pen-Tester-pH-font-b-EC-b-font-TDS-Salinity-Temperature-Water-Quality-6-in.jpg_220x220.jpg)
Digital Pen Tester pH EC TDS Salinity Temperature Water Quality 6-in-1 Meter
US $104.58
/ piece
US $126.00 / piece
US $126.00 / piece
![Free Shipping PH EC CF Temp TDS ORP/mV Tester Analyzer 6-in-1 Multi-Function Water Testing Meter Monitor Conductivity Temprature](http://g02.a.alicdn.com/kf/HTB11.CEJFXXXXaEXFXXq6xXFXXXx/Free-Shipping-PH-font-b-EC-b-font-CF-Temp-TDS-ORP-mV-Tester-Analyzer-6.jpg_220x220.jpg)
Free Shipping PH EC CF Temp TDS ORP/mV Tester Analyzer 6-in-1 Multi-Function Water Testing Meter Monitor Conductivity Temprature
US $132.00
/ piece
![Portable 3 in 1 LCD Digital TDS EC PPM Water Quality Meter Tester Pen Use for Aquarium Pool Hydroponics Food Drink](http://g02.a.alicdn.com/kf/HTB1BIKnJVXXXXXdXpXXq6xXFXXXH/Portable-3-in-1-LCD-Digital-TDS-font-b-EC-b-font-PPM-Water-Quality-font.jpg_220x220.jpg)
Portable 3 in 1 LCD Digital TDS EC PPM Water Quality Meter Tester Pen Use for Aquarium Pool Hydroponics Food Drink
US $6.21
/ piece
![10pcs TDS pen Tester EC meter conductivity meter water measurement tool TSD&EC tool meter Function 3 in 1, 0-5000ppm tds EC](http://g02.a.alicdn.com/kf/HTB1eOcbKVXXXXcBaXXXq6xXFXXXA/10pcs-TDS-pen-Tester-font-b-EC-b-font-font-b-meter-b-font-conductivity-font.jpg_220x220.jpg)
10pcs TDS pen Tester EC meter conductivity meter water measurement tool TSD&EC tool meter Function 3 in 1, 0-5000ppm tds EC
US $49.00
/ lot
![EC-1385L Pen type TDS Meter with EC CF function waterproof](http://g01.a.alicdn.com/kf/HTB1l_bTLVXXXXa.aXXXq6xXFXXXb/EC-1385L-Pen-type-TDS-Meter-with-EC-CF-function-waterproof.jpg)
EC-1385L Pen type TDS Meter with EC CF function waterproof
US $50.40
/ piece
US $56.00 / piece
US $56.00 / piece
![TDS EC Meter 3 In1 Function monitor 3 In1 Function Conductivity Water PH acidity Measurement Tool Tester](http://g02.a.alicdn.com/kf/HTB1xDLWMpXXXXa0XFXXq6xXFXXXN/TDS-EC-Meter-3-In1-Function-monitor-3-In1-Function-Conductivity-Water-PH-acidity-Measurement-Tool.jpg)
TDS EC Meter 3 In1 Function monitor 3 In1 Function Conductivity Water PH acidity Measurement Tool Tester
US $97.00
/ lot
![new arrive 2 in 1Water Quality Tester Multi-parameter with adaptor pH Meter Large screen LCD Display EC 0.01 for Aquarium](http://g02.a.alicdn.com/kf/HTB1Ab36JFXXXXadXFXXq6xXFXXXn/new-arrive-2-in-1Water-Quality-Tester-Multi-parameter-with-adaptor-pH-Meter-Large-screen-LCD.jpg)
new arrive 2 in 1Water Quality Tester Multi-parameter with adaptor pH Meter Large screen LCD Display EC 0.01 for Aquarium
US $34.90
/ piece
![pen design TDS EC meter Conductivity Test Digital Cond Tester for Swimming Pool quick measurement Water sources](http://g01.a.alicdn.com/kf/HTB1AxPsMXXXXXXhXXXXq6xXFXXXO/pen-design-TDS-EC-meter-Conductivity-Test-Digital-Cond-Tester-for-Swimming-Pool-quick-measurement-Water.jpg)
pen design TDS EC meter Conductivity Test Digital Cond Tester for Swimming Pool quick measurement Water sources
US $9.20
/ piece
![pen design TDS EC Meter Tester 19.99 ms/cm Water Quality Electrical quick measurement with hold switch](http://g01.a.alicdn.com/kf/HTB1PPu9MXXXXXXbXVXXq6xXFXXX4/pen-design-TDS-EC-Meter-Tester-19-99-ms-cm-Water-Quality-Electrical-quick-measurement-with.jpg)
pen design TDS EC Meter Tester 19.99 ms/cm Water Quality Electrical quick measurement with hold switch
US $9.10
/ piece
![new arrive Pen Type Conductivity Tester Meter Precision TDS EC monitor Cond Automatic Temperature Compensation](http://g02.a.alicdn.com/kf/HTB1ZCuRMXXXXXaVaXXXq6xXFXXXX/new-arrive-Pen-Type-Conductivity-Tester-Meter-Precision-TDS-EC-monitor-Cond-Automatic-Temperature-Compensation.jpg)
new arrive Pen Type Conductivity Tester Meter Precision TDS EC monitor Cond Automatic Temperature Compensation
US $8.90
/ piece
![New Portable Pen Portable Digital Water PH Meter Filter Measuring Water Quality Purity Tester TDS EC Meter](http://g02.a.alicdn.com/kf/HTB1ziEZHFXXXXbmaXXXq6xXFXXX3/New-Portable-Pen-Portable-Digital-Water-PH-Meter-Filter-Measuring-Water-Quality-Purity-Tester-TDS-EC.jpg)
New Portable Pen Portable Digital Water PH Meter Filter Measuring Water Quality Purity Tester TDS EC Meter
US $7.00
/ piece
![2016 New TDS EC Meter Temperature Tester pen 3 In1 Function Conductivity Water Quality Measurement Tool TDS&EC Tester 0-9000ppm](http://g01.a.alicdn.com/kf/HTB1f9G9LXXXXXapXXXXq6xXFXXXC/2016-New-TDS-EC-Meter-Temperature-Tester-pen-3-In1-Function-Conductivity-Water-Quality-Measurement-Tool.jpg)
2016 New TDS EC Meter Temperature Tester pen 3 In1 Function Conductivity Water Quality Measurement Tool TDS&EC Tester 0-9000ppm
US $6.98
/ piece
![New Portable 3 In 1 Pen Portable Digital Water PH Meter TDS Conductivity Tester EC Temperature Meter](http://g01.a.alicdn.com/kf/HTB1SavcKXXXXXbQXVXXq6xXFXXXO/New-Portable-3-In-1-Pen-Portable-Digital-Water-PH-Meter-TDS-Conductivity-Tester-EC-Temperature.jpg)
New Portable 3 In 1 Pen Portable Digital Water PH Meter TDS Conductivity Tester EC Temperature Meter
US $4.30
/ piece
![Digital Hydroponics EC Conductivity Tester Meter Water Water Pool SPA New Free shippingFree Shipping](http://g02.a.alicdn.com/kf/HTB14GK1HVXXXXXXXpXXq6xXFXXXN/Digital-Hydroponics-EC-Conductivity-Tester-Meter-Water-Water-Pool-SPA-New.jpg)
Digital Hydroponics EC Conductivity Tester Meter Water Water Pool SPA New Free shippingFree Shipping
US $5.58
/ piece
![TDS EC Meter Temperature Tester Pen 3 In1 Function Conductivity Water Quality Measurement Tool TDS&EC Tester 0-9999ppm YB021+](http://g02.a.alicdn.com/kf/HTB1HiDCJVXXXXafXVXXq6xXFXXX7/TDS-EC-Meter-Temperature-Tester-Pen-3-In1-Function-Conductivity-Water-Quality-Measurement-Tool-TDS-EC.jpg)
TDS EC Meter Temperature Tester Pen 3 In1 Function Conductivity Water Quality Measurement Tool TDS&EC Tester 0-9999ppm YB021+
US $8.55
/ piece