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SUZHOU HOLI SMART TECHNOLOGY CO., LTD.
2yrs
Jiangsu, China
Main categories: industrial online meter & sensors,environmental protection online meters & sensors,flowmeters,pressure gage,water quality tester pen
Top picks

Product categories

Digital 4 in 1 Soil Humidity Moisture Monitor Temperature Sunlight Soil Ph Meter for Plants Farming Gardens
$2.45-2.95
Min. order 1 piece
5 in 1 Portable High-Precision pH Salinity Testing Pen Multifunctional Tds Ec pH Salinity Temp Water Quality Tool
$9.80-11.30
Min. order 1 piece
36 sold
5 in 1 Digital PH TDS EC Salinity Temperature Tester Pen with Backlight for Drinking Water PH Meters
$10-11.30
Min. order 2 pieces
2 recent viewed
Water Quality Tester Pen Backlight Display pH Meter 0-14.00 Measurement Water Quality Analysis for Swimming Pool
$1.80-2.25
Min. order 1 piece
1 recent viewed
chlorine test pen
All products
Water quality tester pen
chlorine test pen
CL201 Chlorine Monitoring Swimming Pool Free Chlorine Meter Test Instrument for Efficient Chlorine Detection
$9.43-12
Min. Order: 5 pieces
5 in 1 Free Chlorine Meter CL2 Tester Pen Portable CL Temp Meter Swimming Pool Residual Chlorine Monitoring
$11-14
Min. Order: 10 pieces
19 sold
3 in 1 Free Chlorine Tester Pen Portable Chlorine H2 Temp Meter Backlight Residual Chlorine Monitoring for Swimming Pool
$12-13.60
Min. Order: 1 piece
3 sold
Residual Chlorine Monitor Portable 5 in 1 Free Chlorine Meter Swimming Pool Tester Pen TEMP CL2 H2 ORP Ph Meter
$11-14
Min. Order: 5 pieces
CL201 Chlorine Monitoring Swimming Pool Free Chlorine Meter Test Instrument for Efficient Chlorine Detection
$9.43-12
Min. Order: 5 pieces
1 sold
Portable Chlorine Tester Pen 3-in-1 Chlorine H2 Temp Water Meter for Swimming Pool Chlorine Monitoring Test Instruments
$11.50-13
Min. Order: 5 pieces
2 sold
Portable 5 in 1 Free Chlorine Meter CL2 Tester Pen CL Temp Meter for Swimming Pool Residual Chlorine Monitoring Test Instruments
$12.20-14
Min. Order: 5 pieces
36 sold
CL201 Chlorine Meter Test Instrument Efficient Swimming Pool Free Chlorine Monitoring & Detection Instrument
$9.43-12
Min. Order: 5 pieces
3 sold
2 in 1Chlorine Tester Pen Portable CL Temp Meter Swimming Pool Free Chlorine Monitoring With Backlight Display
$9.43-12
Min. Order: 1 piece
4 in 1 Free Chlorine Tester Pen Portable Chlorine Meter Measurement CL H2 ORP Temp Residual Chlorine Monitoring
$11-13.60
Min. Order: 1 piece
2 sold
Portable 4 in 1 Chlorine Meter Pen Type Free Chlorine Tester CL ORP H2 Temp Residual Chlorine Monitoring Test Instruments
$11.80-13.60
Min. Order: 5 pieces
4 in 1 Free Chlorine Monitor Portable Chlorine Tester Measurement CL H2 ORP Temp for Swimming Pool Residual Chlorine Monitoring
$10.80-13.60
Min. Order: 1 piece
12 sold
Portable Home Pool Spa Water Quality Tester PH Chlorine CL2 Meter Tester Test Instruments for Home Use
$6.85-8
Min. Order: 5 pieces
Portable 2-in-1 Swimming Pool Chlorine Tester Pen Automatic Temperature Compensation Free Chlorine Monitoring Backlight Display
$9.43-12
Min. Order: 1 piece
Water Quality Tester PH Chlorine Meter CL2 Test Instruments for Swimming Pool Water Analysis
$7-8.20
Min. Order: 1 piece
Portable CL2 pH Meter Water Quality Tester for Swimming Pool Chlorine Convenient PH Meters
$6.85-8
Min. Order: 1 piece