Shop ph pen tester

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$28.34
HM Digital PH-80 Handheld Ph / Temp Meter
Fresh Water Systems
616
$28.34
HM Digital PH-80 Handheld Ph / Temp Meter
Fresh Water Systems
$24.20
PH Meter For Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size With 0-14 PH Measurement Range For Household Drinking, Pool And Aquarium (Ph Meter 2PCS)(Ph Meter 2PCS)
techakr.com
$24.20
PH Meter For Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size With 0-14 PH Measurement Range For Household Drinking, Pool And Aquarium (Ph Meter 2PCS)(Ph Meter 2PCS)
techakr.com
$50.24
$66.00
APERA INSTRUMENTS AI209 Value Series PH20 Waterproof Ph Tester Kit, ±0.1 Ph Accuracy
Amazon.com
7K+
Free shipping
23% off
$50.24
$66.00
APERA INSTRUMENTS AI209 Value Series PH20 Waterproof Ph Tester Kit, ±0.1 Ph Accuracy
Amazon.com
$443.11
OAKTON WD-35613-50 Ph 5+ Handheld Meter With ATC, Order Ph Probe Separately
Globaltestsupply.com
$443.11
OAKTON WD-35613-50 Ph 5+ Handheld Meter With ATC, Order Ph Probe Separately
Globaltestsupply.com
$313.50
Myron L Ultrapen Ultrapen Ph And Temperature Pen | Cole-Parmer
Cole-Parmer
$313.50
Myron L Ultrapen Ultrapen Ph And Temperature Pen | Cole-Parmer
Cole-Parmer
$115.90
Hach Pocket Pro Ph Tester 9531000E
PoolZoom.com
$115.90
Hach Pocket Pro Ph Tester 9531000E
PoolZoom.com
$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
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
$136.67
Aquachek Pocket Pro Ph Tester 9531000E
Pool Supply Unlimited
$136.67
Aquachek Pocket Pro Ph Tester 9531000E
Pool Supply Unlimited
$216.70
Environmental Express Oakton Phtestr 5 Waterproof Ph Pocket Tester With Ph Buffer Pouches | Cole-Parmer
Cole-Parmer
$216.70
Environmental Express Oakton Phtestr 5 Waterproof Ph Pocket Tester With Ph Buffer Pouches | Cole-Parmer
Cole-Parmer
$79.99
Tilswall Soil Sensor Probe - NPK & Ph Multi-Function Tester
Tilswall US
$79.99
Tilswall Soil Sensor Probe - NPK & Ph Multi-Function Tester
Tilswall US
$321.86
$677.60
Micro Matic USA PH-METER PH Tester Digital Water Testing Kit With Auto Calibration | Commercial Restaurant Supply
RestaurantSupply.com
52% off
$321.86
$677.60
Micro Matic USA PH-METER PH Tester Digital Water Testing Kit With Auto Calibration | Commercial Restaurant Supply
RestaurantSupply.com
$438.73
OAKTON 35419-30 PH 550 Series Benchtop Ph Meter Kit, 0 To 14 Ph
Globaltestsupply.com
$438.73
OAKTON 35419-30 PH 550 Series Benchtop Ph Meter Kit, 0 To 14 Ph
Globaltestsupply.com
$79.70
Apera Instruments AI311 Premium Series PH60 Waterproof Ph Pocket Tester Kit, Replaceable Probe, ±0.01 Ph Accuracy, Lcd Display
Amazon.com
3K+
Free shipping
$79.70
Apera Instruments AI311 Premium Series PH60 Waterproof Ph Pocket Tester Kit, Replaceable Probe, ±0.01 Ph Accuracy, Lcd Display
Amazon.com
$177.00
Environmental Express Oakton Phtestr 10 Waterproof BNC Pocket Ph Tester | Cole-Parmer
Cole-Parmer
$177.00
Environmental Express Oakton Phtestr 10 Waterproof BNC Pocket Ph Tester | Cole-Parmer
Cole-Parmer
$129.21
OAKTON Ecotestr Ph 2+ Pocket Ph Meter
Globaltestsupply.com
2
$129.21
OAKTON Ecotestr Ph 2+ Pocket Ph Meter
Globaltestsupply.com
$26.22
General Hydroponics GH1514 Ph Control Kit
Fresh Water Systems
$26.22
General Hydroponics GH1514 Ph Control Kit
Fresh Water Systems
$29.99
Ph Tester - One
Gurney's
$29.99
Ph Tester - One
Gurney's
$130.95
$189.00
OHAUS ST20M-B Ph, Conductivity, Temp, TDS Water Analysis Pen Meter
Test Equipment Depot
30% off
$130.95
$189.00
OHAUS ST20M-B Ph, Conductivity, Temp, TDS Water Analysis Pen Meter
Test Equipment Depot
$111.47
$148.00
OHAUS ST20 Starter Ph Pen Meter, 0.00 - 210.2 F Range
Test Equipment Depot
24% off
$111.47
$148.00
OHAUS ST20 Starter Ph Pen Meter, 0.00 - 210.2 F Range
Test Equipment Depot
$99.95
$166.59
PH-200 HM Digital Professional Grade Handheld Ph Meter
US Water Systems
40% off
$99.95
$166.59
PH-200 HM Digital Professional Grade Handheld Ph Meter
US Water Systems
$4.50
VIVOSUN Ph And TDS Meter Combo 0.05Ph High Accuracy Pen Type Ph Meter ± 2% Readout Accuracy 3-In-1 TDS EC Temperature Meter - Shop Hardware Tools Online Store
kreaagency
$4.50
VIVOSUN Ph And TDS Meter Combo 0.05Ph High Accuracy Pen Type Ph Meter ± 2% Readout Accuracy 3-In-1 TDS EC Temperature Meter - Shop Hardware Tools Online Store
kreaagency
$58.99
$83.79
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
29% off
$58.99
$83.79
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
$212.61
Lamotte Ph Pocketester - 1741
Pool Web
$212.61
Lamotte Ph Pocketester - 1741
Pool Web
$161.05
Azzota WPPH-20-USA, Economy Waterproof Pen Type Ph Meter Tester WPPH-20 - USA (PH 4.01/7.00/10.00)
Selectum
$161.05
Azzota WPPH-20-USA, Economy Waterproof Pen Type Ph Meter Tester WPPH-20 - USA (PH 4.01/7.00/10.00)
Selectum
$1,295.00
Myron 720II Ph Meter
US Water Systems
40% off
$1,295.00
Myron 720II Ph Meter
US Water Systems
$523.19
$827.00
OHAUS ST400-F Starter 400 Portable Ph Meter With ST320 Electrode
Test Equipment Depot
36% off
$523.19
$827.00
OHAUS ST400-F Starter 400 Portable Ph Meter With ST320 Electrode
Test Equipment Depot
$204.99
EXTECH PH/TDS/Cond/Salinity Pen, EC500
Zoro.com
133
$204.99
EXTECH PH/TDS/Cond/Salinity Pen, EC500
Zoro.com
$7.45
Lineco Ph Testing Pen
B&H Photo-Video-Pro A
$7.45
Lineco Ph Testing Pen
B&H Photo-Video-Pro A
$9.50
Ph Testing Pen
St. Louis Art Supply
$9.50
Ph Testing Pen
St. Louis Art Supply
$36.71
Digital Ph And Tds Meter Kits, 0.01Ph High Accuracy Pen Type Ph Meter
eBay
Free shipping
$36.71
Digital Ph And Tds Meter Kits, 0.01Ph High Accuracy Pen Type Ph Meter
eBay
$7.95
$13.25
Consumer Ph Test Kit For Water Treatment | 23053
US Water Systems
40% off
$7.95
$13.25
Consumer Ph Test Kit For Water Treatment | 23053
US Water Systems
$42.00
HM Digital PH-80 Ph Hydrotester
Cannon Water Technology
$42.00
HM Digital PH-80 Ph Hydrotester
Cannon Water Technology
$13.19
Digital Ph Meter
Grow It Depot
$13.19
Digital Ph Meter
Grow It Depot
$66.08
Apera Instruments AI221, Ph Pen Tester Kit Suitable For Test Tube Ph Testing
Selectum
$66.08
Apera Instruments AI221, Ph Pen Tester Kit Suitable For Test Tube Ph Testing
Selectum
$210.00
Hach Pocket Pro Ph Tester 9531000
Core & Main
$210.00
Hach Pocket Pro Ph Tester 9531000
Core & Main
$263.95
$295.95
MSE PRO ±0.05Ph Pocket PH Tester With Single Line LCD
MSE Supplies
10% off
$263.95
$295.95
MSE PRO ±0.05Ph Pocket PH Tester With Single Line LCD
MSE Supplies
4 in 1 PH Meter Gomass 0.01 High Accuracy ph Tester Digital for Water TDS/EC/Temp/PH Pen
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4 in 1 PH Meter Gomass 0.01 High Accuracy ph Tester Digital for Wat…
Aug 2, 2024
amazon
Water Quality Tester, High Accuracy Pen Type Tester Digital PH Meter, Acidity Meter For Swimming Pools,Hydroponics Drinking Water,Aquariums - Walmart.ca
Water Quality Tester, High Accuracy Pen Type Tester Digital PH Meter, …
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walmart.ca
GroStar® GS1 pH Pen Tester (Gen II)
GroStar® GS1 pH Pen Tester (Gen II)
May 26, 2021
aperainst.com
Milwaukee pH600AQ Digital pH Pen
Milwaukee pH600AQ Digital pH Pen
Apr 18, 2021
milwaukeeinstruments.com.au
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GroStar® GS2 Soil pH Pen Tester (Gen II)
GroStar® GS2 Soil pH Pen Tester (Gen II)
May 26, 2021
aperainst.com
pH Meter,Ph Meter With Atc Auto Ph Water Quality Temperature Professional Ph Water Tester Solution With Portable Pen Type Water Quality Tester Ph Tester Pen Type Ph Qisuo Huiop - Walmart.ca
pH Meter,Ph Meter With Atc Auto Ph Water Quality Temperature Profes…
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walmart.ca
TDS / ph / EC / Temperature four in one Water quality tester Conducti…
Mar 13, 2025
walmart.ca
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pH Pen, 8686 AZ - AZ Instrument Corp.
May 15, 2019
az-instrument.com.tw
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How to Calibrate and Use a pH Meter
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OHAUS ST20 pH Pen Meter Measurement Tutorial
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[Hot Item] Yw-612 Portable Digital Water pH Pen Tester
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GroStar® GS4 pH/EC/500ppm/700ppm/Temp (5-i…
May 26, 2021
aperainst.com
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Digital Soil pH Meter, Industrial Grade Soil pH Tester with Calibrati…
8 viewsMar 12, 2025
amazon
7 in 1PH Meter Water Quality Tester PH TDS EC ORP S.G Water Salinit…
Mar 19, 2025
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Digital Soil pH Meter, Industrial Grade Soil pH Tester with Calibrati…
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4-in-1 PH Meter, PH Meter for Water, Digital PH Tester 0.01 High Accura…
22 viewsJul 5, 2024
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Apera SX620 pH Pen Tester Tutorial
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8 Best pH Meters In 2025 (Ranked By Quality)
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Bluelab pH pen - Cleaning and calibration video
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Shop ph pen tester

Sponsored
About our ads
$28.34
HM Digital PH-80 Handheld Ph / Temp Meter
Fresh Water Systems
616
$28.34
HM Digital PH-80 Handheld Ph / Temp Meter
Fresh Water Systems
$24.20
PH Meter For Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size With 0-14 PH Measurement Range For Household Drinking, Pool And Aquarium (Ph Meter 2PCS)(Ph Meter 2PCS)
techakr.com
$24.20
PH Meter For Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size With 0-14 PH Measurement Range For Household Drinking, Pool And Aquarium (Ph Meter 2PCS)(Ph Meter 2PCS)
techakr.com
$50.24
$66.00
APERA INSTRUMENTS AI209 Value Series PH20 Waterproof Ph Tester Kit, ±0.1 Ph Accuracy
Amazon.com
7K+
Free shipping
23% off
$50.24
$66.00
APERA INSTRUMENTS AI209 Value Series PH20 Waterproof Ph Tester Kit, ±0.1 Ph Accuracy
Amazon.com
$443.11
OAKTON WD-35613-50 Ph 5+ Handheld Meter With ATC, Order Ph Probe Separately
Globaltestsupply.com
$443.11
OAKTON WD-35613-50 Ph 5+ Handheld Meter With ATC, Order Ph Probe Separately
Globaltestsupply.com
$313.50
Myron L Ultrapen Ultrapen Ph And Temperature Pen | Cole-Parmer
Cole-Parmer
$313.50
Myron L Ultrapen Ultrapen Ph And Temperature Pen | Cole-Parmer
Cole-Parmer
$115.90
Hach Pocket Pro Ph Tester 9531000E
PoolZoom.com
$115.90
Hach Pocket Pro Ph Tester 9531000E
PoolZoom.com
$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
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
$136.67
Aquachek Pocket Pro Ph Tester 9531000E
Pool Supply Unlimited
$136.67
Aquachek Pocket Pro Ph Tester 9531000E
Pool Supply Unlimited
$216.70
Environmental Express Oakton Phtestr 5 Waterproof Ph Pocket Tester With Ph Buffer Pouches | Cole-Parmer
Cole-Parmer
$216.70
Environmental Express Oakton Phtestr 5 Waterproof Ph Pocket Tester With Ph Buffer Pouches | Cole-Parmer
Cole-Parmer
$79.99
Tilswall Soil Sensor Probe - NPK & Ph Multi-Function Tester
Tilswall US
$79.99
Tilswall Soil Sensor Probe - NPK & Ph Multi-Function Tester
Tilswall US
$321.86
$677.60
Micro Matic USA PH-METER PH Tester Digital Water Testing Kit With Auto Calibration | Commercial Restaurant Supply
RestaurantSupply.com
52% off
$321.86
$677.60
Micro Matic USA PH-METER PH Tester Digital Water Testing Kit With Auto Calibration | Commercial Restaurant Supply
RestaurantSupply.com
$438.73
OAKTON 35419-30 PH 550 Series Benchtop Ph Meter Kit, 0 To 14 Ph
Globaltestsupply.com
$438.73
OAKTON 35419-30 PH 550 Series Benchtop Ph Meter Kit, 0 To 14 Ph
Globaltestsupply.com
$79.70
Apera Instruments AI311 Premium Series PH60 Waterproof Ph Pocket Tester Kit, Replaceable Probe, ±0.01 Ph Accuracy, Lcd Display
Amazon.com
3K+
Free shipping
$79.70
Apera Instruments AI311 Premium Series PH60 Waterproof Ph Pocket Tester Kit, Replaceable Probe, ±0.01 Ph Accuracy, Lcd Display
Amazon.com
$177.00
Environmental Express Oakton Phtestr 10 Waterproof BNC Pocket Ph Tester | Cole-Parmer
Cole-Parmer
$177.00
Environmental Express Oakton Phtestr 10 Waterproof BNC Pocket Ph Tester | Cole-Parmer
Cole-Parmer
$129.21
OAKTON Ecotestr Ph 2+ Pocket Ph Meter
Globaltestsupply.com
2
$129.21
OAKTON Ecotestr Ph 2+ Pocket Ph Meter
Globaltestsupply.com
$26.22
General Hydroponics GH1514 Ph Control Kit
Fresh Water Systems
$26.22
General Hydroponics GH1514 Ph Control Kit
Fresh Water Systems
$29.99
Ph Tester - One
Gurney's
$29.99
Ph Tester - One
Gurney's
$130.95
$189.00
OHAUS ST20M-B Ph, Conductivity, Temp, TDS Water Analysis Pen Meter
Test Equipment Depot
30% off
$130.95
$189.00
OHAUS ST20M-B Ph, Conductivity, Temp, TDS Water Analysis Pen Meter
Test Equipment Depot