All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier
Alibaba
Testing Instrument & Equipment
Test Instruments
PH Meters
Popular in your industry
Testing Instruments for Chemical Laboratory
Hunting
Meat Processing
Laboratory Utensils
Mining
Rehabilitation Therapy
Previous slide
Next slide
Orp meter
(6836 products available)
Previous slide
Next slide
Factory Sales Ph
Orp
Sensor Cheap Plastic Sensitive
ORP
Ph Redox Probe High Quality Redox
ORP
Electrode
Ready to Ship
$
15
.00 - $
35
.00
Min. Order: 1 piece
17 yrs
CN
Supplier
4.7/5.0
·
11 reviews
·
"great service"
Contact supplier
Chat now
Previous slide
Next slide
Digital Spherical Moisture Tester Blue Multifunctional LCD Display Soil Plank Wall Wood Concrete Non-invasive Moisture Tester
$
39
.99 - $
42
.99
Min. Order: 2 pieces
Shipping per piece: $8.21
6 yrs
CN
Supplier
4.9/5.0
·
136 reviews
·
"fast delivery"
Contact supplier
Chat now
Previous slide
Next slide
Newest 7 In 1 Digital PH Tester PH / TDS / EC /
ORP
/ Salinity/ Temperature Function Digital PH
Meters
Multi Parameter Tester
$
14
.08 - $
15
.58
Min. Order: 2 pieces
1 yrs
CN
Supplier
5.0/5.0
·
1 reviews
Contact supplier
Chat now
Previous slide
Next slide
MPG-6099 IoT IrrigationpH
ORP
TDS DO EC Salinity NH4+ Ammonia Nitrate Water Quality Sensors Control Board Monitoring
Meter
$
1
.10 - $
9
.90
Min. Order: 1 set
7 yrs
CN
Supplier
5.0/5.0
·
7 reviews
·
"Professional factory"
Contact supplier
Chat now
Previous slide
Next slide
Online Industrial Automatic Digital
ORP
PH Tester Measure Medidor Control Monitors Analyzer Controller PH
Meter
Industry
$
58
.92 - $
420
.87
Min. Order: 1 piece
3 yrs
CN
Supplier
4.9/5.0
·
12 reviews
·
"Reliable supplier"
Contact supplier
Chat now
Previous slide
Next slide
Boqu Dds-1702 Economic Model Portable Conductivity Analyzer Handheld Conductivity
Meter
$
119
.00 - $
169
.00
Min. Order: 1 set
7 yrs
CN
Supplier
5.0/5.0
·
7 reviews
·
"Professional factory"
Contact supplier
Chat now
Previous slide
Next slide
Digital Bluetooth
ORP
meter
-2000mv-+2000mv Pen Type 7 IN 1 PH/
ORP
/EC/TDS/SALT/GS/TEMP Water Quality Testerfor Swimming Pool
$
19
.64 - $
20
.43
Min. Order: 10 pieces
8 yrs
CN
Supplier
4.7/5.0
·
93 reviews
·
"fast delivery"
Contact supplier
Chat now
- 2%
Previous slide
Next slide
High Quality 7 in 1 TDS/EC/Salinity/Temp/
ORP
/Res/ph
meter
digital Pool Aquarium Hydroponic Drinking Water Quality Monitor Tester
$
80
.26 - $
148
.76
Min. Order: 10 sets
5 yrs
CN
Supplier
4.9/5.0
·
27 reviews
·
"fast shipping"
Contact supplier
Chat now
1
2
3
4
5
More pages
100
1
/
100