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$239.00
Extech CL200 Exstik Waterproof Chlorine Meter
Amazon.com
43
$239.00
Extech CL200 Exstik Waterproof Chlorine Meter
Amazon.com
43
$134.00
Extech EC400 Exstik Waterproof Conductivity, TDS, Salinity, And Temperature Meter
Amazon.com
147
Free shipping
$134.00
Extech EC400 Exstik Waterproof Conductivity, TDS, Salinity, And Temperature Meter
Amazon.com
147
$20.59
$31.99
Ph Meter, 3-In-1 TDS Meter Digital Water Tester With 0.01 High Precision, Water Tester For Drinking Water With 0-14 Ph Test Range, TDS/Temp/Ph Tester
Amazon.com
1K+
35% off
$20.59
$31.99
Ph Meter, 3-In-1 TDS Meter Digital Water Tester With 0.01 High Precision, Water Tester For Drinking Water With 0-14 Ph Test Range, TDS/Temp/Ph Tester
Amazon.com
1K+
$9.99
Digital TDS Meter, Hofun 3 in 1 TDS, EC & Temperature Meter, Accurate & Reliable PPM Meter, Water Testing Kits For Drinking Water Quality, Tap, Well,
Amazon.com
2K+
$9.99
Digital TDS Meter, Hofun 3 in 1 TDS, EC & Temperature Meter, Accurate & Reliable PPM Meter, Water Testing Kits For Drinking Water Quality, Tap, Well,
Amazon.com
2K+
$9.97
$12.97
Instant 4-In-1 TDS Meter Digital Water Tester For Drinking Water | Accurate 0-9990 PPM EC & Temp Readings | Ideal For RO Systems, Aquariums, Pools -
Amazon.com
23% off
$9.97
$12.97
Instant 4-In-1 TDS Meter Digital Water Tester For Drinking Water | Accurate 0-9990 PPM EC & Temp Readings | Ideal For RO Systems, Aquariums, Pools -
Amazon.com
$254.48
Extech Ph Meter: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points, Mv/Ph/Temp Model: PH220-C
Grainger
66
$254.48
Extech Ph Meter: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points, Mv/Ph/Temp Model: PH220-C
Grainger
66
$39.99
PH Meter & TDS Meter Digital Water Tester 5 in 1 Salinity Tester PH Temp EC And TDS Meter,PH Meter For Water With LCD Backlit,Water Testing Kits For
Amazon.com
9
Free shipping
$39.99
PH Meter & TDS Meter Digital Water Tester 5 in 1 Salinity Tester PH Temp EC And TDS Meter,PH Meter For Water With LCD Backlit,Water Testing Kits For
Amazon.com
9
$1,110.44
Myron L 6PIIFCE Conductivity, Resistivity, TDS, Ph, ORP/Free Chlorine, Temperature Meter
Amazon.com
Free shipping
26% off
$1,110.44
Myron L 6PIIFCE Conductivity, Resistivity, TDS, Ph, ORP/Free Chlorine, Temperature Meter
Amazon.com
Free shipping
$210.00
Hach Pocket Pro Ph Tester, Ph Meter For Water Analysis Ph & Temp Testing, Large LCD Screen, Replaceable Batteries, Built-In Diagnostics, 9531000
Amazon.com
39
Free shipping
$210.00
Hach Pocket Pro Ph Tester, Ph Meter For Water Analysis Ph & Temp Testing, Large LCD Screen, Replaceable Batteries, Built-In Diagnostics, 9531000
Amazon.com
39
$22.99
SJ WAVE 22 in 1 Water Test Kits - 125 Strips Drinking Water Test Kit, Home Tap And Well Water Tester For Bacteria Ph Hardness Lead Iron Copper
Amazon.com
4K+
$22.99
SJ WAVE 22 in 1 Water Test Kits - 125 Strips Drinking Water Test Kit, Home Tap And Well Water Tester For Bacteria Ph Hardness Lead Iron Copper
Amazon.com
4K+
$22.99
Ph Tester,Digital Ph Meter For Water,New Version TDS Meter For Drinking Water With Backlit Simultaneously Display 4 in 1 TDS Ph EC Meter For Water
Amazon.com
$22.99
Ph Tester,Digital Ph Meter For Water,New Version TDS Meter For Drinking Water With Backlit Simultaneously Display 4 in 1 TDS Ph EC Meter For Water
Amazon.com
$66.99
Hydrogen Water Tester,PH Meter 7 in 1 H2/TDS/EC/ORP/Salt/Temp With ATC & Backlight,Hydrogen Water Tester For Filtered Water, TDS Meter For Juice,
Amazon.com
Free shipping
$66.99
Hydrogen Water Tester,PH Meter 7 in 1 H2/TDS/EC/ORP/Salt/Temp With ATC & Backlight,Hydrogen Water Tester For Filtered Water, TDS Meter For Juice,
Amazon.com
Free shipping
$15.99
$16.97
Varify 4-In-1 TDS Meter Digital Water Tester For Drinking Water | Accurate 0-9990 PPM EC & Temp Readings | Ideal For RO Systems, Aquariums, Pools -
Amazon.com
$15.99
$16.97
Varify 4-In-1 TDS Meter Digital Water Tester For Drinking Water | Accurate 0-9990 PPM EC & Temp Readings | Ideal For RO Systems, Aquariums, Pools -
Amazon.com
$160.85
Extech Pocket Multiparameter Meter: Conductivity/Salinity/Temp/Total Dissolved Solids Model: EC400
Grainger
507
$160.85
Extech Pocket Multiparameter Meter: Conductivity/Salinity/Temp/Total Dissolved Solids Model: EC400
Grainger
507
$15.99
Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot
105
Free shipping
$15.99
Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot
105
$213.86
Myron L 575405 L PT1 Myronl ULTRAPEN Conductivity Tester - +/- 1%
Amazon.com
Free shipping
$213.86
Myron L 575405 L PT1 Myronl ULTRAPEN Conductivity Tester - +/- 1%
Amazon.com
Free shipping
$18.99
APEC TDS Meter Digital Water Quality TDS Test Kit Meter With Carrying Case, 0 To 1999 Ppm Measurement Range, 1 Ppm Resolution, +/- 2% Readout Accuracy
Amazon.com
808
$18.99
APEC TDS Meter Digital Water Quality TDS Test Kit Meter With Carrying Case, 0 To 1999 Ppm Measurement Range, 1 Ppm Resolution, +/- 2% Readout Accuracy
Amazon.com
808
$1,160.00
Lamotte 3581 Mobile Waterlink Spin Touch Lab
Amazon.com
54
Free shipping
$1,160.00
Lamotte 3581 Mobile Waterlink Spin Touch Lab
Amazon.com
54
$315.88
Extech Pocket Multiparameter Meter: Conductivity/Ph/Salinity/Temp/Total Dissolved Solids Model: EC500
Grainger
482
$315.88
Extech Pocket Multiparameter Meter: Conductivity/Ph/Salinity/Temp/Total Dissolved Solids Model: EC500
Grainger
482
$14.49
3 In1 Meter Digital Water Quality Tester TDS EC Meter Temperature Tester Pen Multifunctional Digital Water Quality Tester For Water Purity TEMP PPM Te
LightInTheBox
$14.49
3 In1 Meter Digital Water Quality Tester TDS EC Meter Temperature Tester Pen Multifunctional Digital Water Quality Tester For Water Purity TEMP PPM Te
LightInTheBox
$14.49
3 In1 Meter Digital Water Quality Tester TDS EC Meter Temperature Tester Pen Multifunctional Digital Water Quality Tester For Water Purity TEMP PPM Te
LightInTheBox
$14.49
3 In1 Meter Digital Water Quality Tester TDS EC Meter Temperature Tester Pen Multifunctional Digital Water Quality Tester For Water Purity TEMP PPM Te
LightInTheBox
$72.99
Tilswall Wireless Water Tester App Sync - PH, TDS, Temp
Tilswall US
$72.99
Tilswall Wireless Water Tester App Sync - PH, TDS, Temp
Tilswall US
$49.99
$54.99
Tilswall Digital Water Tester 5-In-1 PH Meter & TDS Meter
Tilswall US
$49.99
$54.99
Tilswall Digital Water Tester 5-In-1 PH Meter & TDS Meter
Tilswall US
$43.99
$92.19
7-In-1 TDS Water Tester 0.01 High Accuracy Digital Ph Meter PH/ TDS/ EC/ Salinity/ Temperature Tester PPM Water Tester For Drinking Water Hydroponics
LightInTheBox
52% off
$43.99
$92.19
7-In-1 TDS Water Tester 0.01 High Accuracy Digital Ph Meter PH/ TDS/ EC/ Salinity/ Temperature Tester PPM Water Tester For Drinking Water Hydroponics
LightInTheBox
$55.99
Tilswall Portable 3-In-1 Water Quality Tester - Ph, ORP, Temperature
Tilswall US
$55.99
Tilswall Portable 3-In-1 Water Quality Tester - Ph, ORP, Temperature
Tilswall US
$64.97
$129.94
PH Meter And TDS Meter Digital Water Quality Tester With LCD Display - Ph Ec Meter | Uplift Essentials
Inspire Uplift
30-day returns (most items)
50% off
$64.97
$129.94
PH Meter And TDS Meter Digital Water Quality Tester With LCD Display - Ph Ec Meter | Uplift Essentials
Inspire Uplift
30-day returns
$64.97
$129.94
PH Meter And TDS Meter Digital Water Quality Tester With LCD Display - Ph Ec Meter 02 | Uplift Essentials
Inspire Uplift
30-day returns (most items)
50% off
$64.97
$129.94
PH Meter And TDS Meter Digital Water Quality Tester With LCD Display - Ph Ec Meter 02 | Uplift Essentials
Inspire Uplift
30-day returns
$4.67
$9.32
PH Meter Digital Water Quality Tester 0-14 PH Meter Tester LED Water Purity Aquarium Filter
Aliexpress
49% off
$4.67
$9.32
PH Meter Digital Water Quality Tester 0-14 PH Meter Tester LED Water Purity Aquarium Filter
Aliexpress
$9.99
$19.99
Sakerplus Digital TDS EC Water Tester
Sakerplus
90-day returns (most items)
50% off
$9.99
$19.99
Sakerplus Digital TDS EC Water Tester
Sakerplus
90-day returns
$56.17
$111.29
Digital PH Meter HT-1202 High Precision Digital Water Quality Tester PH MV Tester Temperature Meter
Aliexpress
Free shipping
49% off
$56.17
$111.29
Digital PH Meter HT-1202 High Precision Digital Water Quality Tester PH MV Tester Temperature Meter
Aliexpress
Free shipping
$41.97
$83.94
PH Meter And TDS Meter Digital Water Quality Tester With LCD Display - Ec Meter White | Uplift Essentials
Inspire Uplift
30-day returns (most items)
50% off
$41.97
$83.94
PH Meter And TDS Meter Digital Water Quality Tester With LCD Display - Ec Meter White | Uplift Essentials
Inspire Uplift
30-day returns
$21.07
Digital 4 in 1 Water Quality Tester High Precision PH Meter PH TDS EC TEMP Test Pen With
Aliexpress
Free shipping
$21.07
Digital 4 in 1 Water Quality Tester High Precision PH Meter PH TDS EC TEMP Test Pen With
Aliexpress
Free shipping
$34.90
$74.80
4 in 1 Digital Pool Tester - PH Meter, TDS Meter, EC Meter, Temperature Meter, Water Quality Monitor
US AMERICA
53% off
$34.90
$74.80
4 in 1 Digital Pool Tester - PH Meter, TDS Meter, EC Meter, Temperature Meter, Water Quality Monitor
US AMERICA
$59.86
$79.83
RCYAGO Water Quality Tester, 3 in 1 Digital Ph/EC/Temperature Meter Monitor Tester With Replaceable Electrode BNC Type Probe Water Tester
jmpropiedadtx
Free shipping
25% off
$59.86
$79.83
RCYAGO Water Quality Tester, 3 in 1 Digital Ph/EC/Temperature Meter Monitor Tester With Replaceable Electrode BNC Type Probe Water Tester
jmpropiedadtx
Free shipping
$7.99
High Accuracy Digital TDS Meter For Water Purity - 0-9990Ppm LCD Tester For Aquariums
Evalm
30-day returns (most items)
$7.99
High Accuracy Digital TDS Meter For Water Purity - 0-9990Ppm LCD Tester For Aquariums
Evalm
30-day returns
$49.99
Portable 4-In-1 Digital Water Tester: Ph, Tds, Ec Meter For Home &
eBay
Free shipping
$49.99
Portable 4-In-1 Digital Water Tester: Ph, Tds, Ec Meter For Home &
eBay
Free shipping
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    Shop electric water tester

    Sponsored
    About our ads
    $239.00
    Extech CL200 Exstik Waterproof Chlorine Meter
    Amazon.com
    43
    $239.00
    Extech CL200 Exstik Waterproof Chlorine Meter
    Amazon.com
    43
    $134.00
    Extech EC400 Exstik Waterproof Conductivity, TDS, Salinity, And Temperature Meter
    Amazon.com
    147
    Free shipping
    $134.00
    Extech EC400 Exstik Waterproof Conductivity, TDS, Salinity, And Temperature Meter
    Amazon.com
    147
    $20.59
    $31.99
    Ph Meter, 3-In-1 TDS Meter Digital Water Tester With 0.01 High Precision, Water Tester For Drinking Water With 0-14 Ph Test Range, TDS/Temp/Ph Tester
    Amazon.com
    1K+
    35% off
    $20.59
    $31.99
    Ph Meter, 3-In-1 TDS Meter Digital Water Tester With 0.01 High Precision, Water Tester For Drinking Water With 0-14 Ph Test Range, TDS/Temp/Ph Tester
    Amazon.com
    1K+
    $9.99
    Digital TDS Meter, Hofun 3 in 1 TDS, EC & Temperature Meter, Accurate & Reliable PPM Meter, Water Testing Kits For Drinking Water Quality, Tap, Well,
    Amazon.com
    2K+
    $9.99
    Digital TDS Meter, Hofun 3 in 1 TDS, EC & Temperature Meter, Accurate & Reliable PPM Meter, Water Testing Kits For Drinking Water Quality, Tap, Well,
    Amazon.com
    2K+
    $9.97
    $12.97
    Instant 4-In-1 TDS Meter Digital Water Tester For Drinking Water | Accurate 0-9990 PPM EC & Temp Readings | Ideal For RO Systems, Aquariums, Pools -
    Amazon.com
    23% off
    $9.97
    $12.97
    Instant 4-In-1 TDS Meter Digital Water Tester For Drinking Water | Accurate 0-9990 PPM EC & Temp Readings | Ideal For RO Systems, Aquariums, Pools -
    Amazon.com
    $254.48
    Extech Ph Meter: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points, Mv/Ph/Temp Model: PH220-C
    Grainger
    66
    $254.48
    Extech Ph Meter: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points, Mv/Ph/Temp Model: PH220-C
    Grainger
    66
    $39.99
    PH Meter & TDS Meter Digital Water Tester 5 in 1 Salinity Tester PH Temp EC And TDS Meter,PH Meter For Water With LCD Backlit,Water Testing Kits For
    Amazon.com
    9
    Free shipping
    $39.99
    PH Meter & TDS Meter Digital Water Tester 5 in 1 Salinity Tester PH Temp EC And TDS Meter,PH Meter For Water With LCD Backlit,Water Testing Kits For
    Amazon.com
    9
    $1,110.44
    Myron L 6PIIFCE Conductivity, Resistivity, TDS, Ph, ORP/Free Chlorine, Temperature Meter
    Amazon.com
    Free shipping
    26% off
    $1,110.44
    Myron L 6PIIFCE Conductivity, Resistivity, TDS, Ph, ORP/Free Chlorine, Temperature Meter
    Amazon.com
    Free shipping
    $210.00
    Hach Pocket Pro Ph Tester, Ph Meter For Water Analysis Ph & Temp Testing, Large LCD Screen, Replaceable Batteries, Built-In Diagnostics, 9531000
    Amazon.com
    39
    Free shipping
    $210.00
    Hach Pocket Pro Ph Tester, Ph Meter For Water Analysis Ph & Temp Testing, Large LCD Screen, Replaceable Batteries, Built-In Diagnostics, 9531000
    Amazon.com
    39
    $22.99
    SJ WAVE 22 in 1 Water Test Kits - 125 Strips Drinking Water Test Kit, Home Tap And Well Water Tester For Bacteria Ph Hardness Lead Iron Copper
    Amazon.com
    4K+
    $22.99
    SJ WAVE 22 in 1 Water Test Kits - 125 Strips Drinking Water Test Kit, Home Tap And Well Water Tester For Bacteria Ph Hardness Lead Iron Copper
    Amazon.com
    4K+
    $22.99
    Ph Tester,Digital Ph Meter For Water,New Version TDS Meter For Drinking Water With Backlit Simultaneously Display 4 in 1 TDS Ph EC Meter For Water
    Amazon.com
    $22.99
    Ph Tester,Digital Ph Meter For Water,New Version TDS Meter For Drinking Water With Backlit Simultaneously Display 4 in 1 TDS Ph EC Meter For Water
    Amazon.com
    $66.99
    Hydrogen Water Tester,PH Meter 7 in 1 H2/TDS/EC/ORP/Salt/Temp With ATC & Backlight,Hydrogen Water Tester For Filtered Water, TDS Meter For Juice,
    Amazon.com
    Free shipping
    $66.99
    Hydrogen Water Tester,PH Meter 7 in 1 H2/TDS/EC/ORP/Salt/Temp With ATC & Backlight,Hydrogen Water Tester For Filtered Water, TDS Meter For Juice,
    Amazon.com
    Free shipping
    $15.99
    $16.97
    Varify 4-In-1 TDS Meter Digital Water Tester For Drinking Water | Accurate 0-9990 PPM EC & Temp Readings | Ideal For RO Systems, Aquariums, Pools -
    Amazon.com
    $15.99
    $16.97
    Varify 4-In-1 TDS Meter Digital Water Tester For Drinking Water | Accurate 0-9990 PPM EC & Temp Readings | Ideal For RO Systems, Aquariums, Pools -
    Amazon.com
    $160.85
    Extech Pocket Multiparameter Meter: Conductivity/Salinity/Temp/Total Dissolved Solids Model: EC400
    Grainger
    507
    $160.85
    Extech Pocket Multiparameter Meter: Conductivity/Salinity/Temp/Total Dissolved Solids Model: EC400
    Grainger
    507
    $15.99
    Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
    Home Depot
    105
    Free shipping
    $15.99
    Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
    Home Depot
    105
    $213.86
    Myron L 575405 L PT1 Myronl ULTRAPEN Conductivity Tester - +/- 1%
    Amazon.com
    Free shipping
    $213.86
    Myron L 575405 L PT1 Myronl ULTRAPEN Conductivity Tester - +/- 1%
    Amazon.com
    Free shipping
    $18.99
    APEC TDS Meter Digital Water Quality TDS Test Kit Meter With Carrying Case, 0 To 1999 Ppm Measurement Range, 1 Ppm Resolution, +/- 2% Readout Accuracy
    Amazon.com
    808
    $18.99
    APEC TDS Meter Digital Water Quality TDS Test Kit Meter With Carrying Case, 0 To 1999 Ppm Measurement Range, 1 Ppm Resolution, +/- 2% Readout Accuracy
    Amazon.com
    808
    $1,160.00
    Lamotte 3581 Mobile Waterlink Spin Touch Lab
    Amazon.com
    54
    Free shipping
    $1,160.00
    Lamotte 3581 Mobile Waterlink Spin Touch Lab
    Amazon.com
    54