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    96 Products

    pH Testing Paper

    Image of Product. Front orientation. pH Testing Paper.
    Check pH levels without a meter. When this testing paper is dipped in a sample, it changes color to indicate pH. Match the color of the testing paper to the color chart to determine the sample’s pH.
    pH Range,
    pH
    pH Numeric Increments,
    pH
    No. of Color
    Points
    Wd.
    Lg.,
    ft.
    Each
    0 to 131141/2"500000000000000
    1 to 6161/4"1500000000000
    1 to 111111/2"50000000000000
    3 to 5.50.561/2"50000000000000
    3 to 9171/2"50000000000000
    6 to 80.471/2"50000000000000
    6.5 to 130.5141/4"150000000000
    8 to 9.50.541/4"1500000000000
    10 to 120.551/4"1500000000000

    Water-Resistant pH Meters

    Check pH in harsh field conditions. These floating meters that have a housing that meets IP67 for complete resistance to dust and protection from temporary submersion. Automatic temperature compensation standardizes readings at 77° F to prevent inaccurate results in fluctuating temperatures. Use a calibration solution and the calibration button to maintain accuracy. They do not include Calibration Solution.
    For Testing pH
    Image of Product. Front orientation. Chemistry Meters. Water-Resistant pH Meters.
    For Use With Clean Liquids—Meter for clean liquids is commonly used in pools and hydroponic solutions.
    For Use With Dirty Liquids—Meter for dirty liquids stands up to wastewater, plating bath solutions, and other harsh liquids.
    Cannot Be Sold to Canada—Meters cannot be sold to Canada due to import regulations.
    pH
    Sensor
    Material
    Range,
    pH
    Accuracy
    ATC Range,
    ° F
    Enclosure
    Rating
    Certification
    Ht.
    Wd.
    Dp.
    Batteries
    Included
    Cannot Be
    Sold To
    Display
    Type
    Each
    For Use With Clean Liquids
    Glass0 to 14±0.1 pH32 to 122IP67
    		CE Marked
    		6 1/2"1 1/2"3/4"YesCanadaLCD000000000000000
     
    For Use With Dirty Liquids
    Glass-2 to 16±0.01 pH32 to 122IP67
    		CE Marked
    		7"——YesCanadaLCD00000000000000
     
    Replacement Sensors
    Each
    00000000000000

    pH Meters

    More precise than test strips, these meters are often used to measure the pH of dirty liquids in agricultural systems, aquaculture tanks, and printing fountains. Automatic temperature compensation standardizes readings at 77° F to prevent inaccurate results in fluctuating temperatures. Use a Calibration Solution (not included) and the calibration button to maintain accuracy.
    For Testing pH
    Image of Product. Front orientation. Chemistry Meters. pH Meters .
    Cannot Be Sold to Canada—Meters cannot be sold to Canada due to import regulations.
    pH
    Sensor
    Material
    Range,
    pH
    Accuracy
    ATC Range,
    ° F
    Ht.
    Wd.
    Dp.
    Batteries
    Included
    Cannot Be
    Sold To
    Display
    Type
    Each
    For Use With Dirty Liquids
    Glass0 to 14±0.1 pH32 to 1227"1 1/2"1 1/4"YesCanadaLCD0000000000000
     

    Water-Quality Test Strips

    Image of ProductInUse. Front orientation. Water Test Strips. Water-Quality Test Strips.
    Dip these strips into your liquid to quickly test water conditions. Strips change color to indicate the value reached; match the color of the strip to the color chart on the bottle to interpret the results.
    For Testing
    Range
    No. of
    Strips
    Each
    Ammonia0 ppm to 6 ppm2500000000000000
    Chloride0 ppm to 500 ppm500000000000000
    Copper0 ppm to 3 ppm250000000000000
    Free Chlorine0 ppm to 800 ppm500000000000000
    Free Chlorine, Total Chlorine0 ppm to 10 ppm250000000000000
    Hydrogen Peroxide0 ppm to 90 ppm250000000000000
    Iron0 ppm to 5 ppm250000000000000
    Molybdenum0 ppm to 5 ppm500000000000000
    Nitrate, Nitrite0 ppm to 50 ppm 0 ppm to 10 ppm500000000000000
    Peracetic Acid0 ppm to 160 ppm500000000000000
    Phosphorus0 ppb to 2,500 ppb250000000000000
    Salinity0% to 150%500000000000000
    Total Alkalinity0 ppm to 180 ppm50000000000000
    Total Hardness0 ppm to 180 ppm500000000000000
    Total Hardness0 gpg to 58 gpg500000000000000
    pH0 pH to 14 pH1000000000000000
    pH0 pH to 6 pH1000000000000000
    pH6.5 pH to 13 pH1000000000000000
    pH4 pH to 10 pH500000000000000
    Free Chlorine, Total Chlorine
    Total Alkalinity
    Total Hardness
    pH    		0 ppm to 10 ppm
    0 ppm to 425 ppm
    0 ppm to 240 ppm
    6.2 pH to 8.4 pH    		300000000000000

    pH Meter Storage Solutions

    Image of Product. Front orientation. pH Meter Storage Solutions.
    Prevent pH sensors from drying between uses to extend service life.
    Container
    Size, ml
    Each
    500000000000000000

    pH Sensor Cleaners

    Image of Product. Front orientation. pH Sensor Cleaners.
    Remove deposits and contaminants from pH sensors.
    Container
    Size, ml
    For Sensor
    Type
    Each
    500pH000000000000000

    Buffer Solutions

    Image of Product. Front orientation. Buffer Solutions. Buffer Solutions, 20 ml Container.
    Image of Product. Front orientation. Buffer Solutions. Buffer Solutions, 500 ml Container.
    Image of Product. Front orientation. Buffer Solutions. Buffer Solutions, 1 gal. Container.

    20 ml Container

    500 ml

    Container

    1 gal.

    Container

    Maintain the accuracy of chemistry sensors.
    For Calibrating
    Calibration Point
    Pkg.
    Qty.
    Pkg.
    20 ml Container
    Chlorine1 ppm3000000000000000
     
    500 ml Container
    Conductivity, Total Dissolved Solids (TDS)40.38 ppm; 84 μS100000000000000
    Conductivity, Total Dissolved Solids (TDS)745 ppm; 1,413 μS100000000000000
    Conductivity, Total Dissolved Solids (TDS)1,382 ppm; 2,764 μS100000000000000
    Conductivity, Total Dissolved Solids (TDS)7,447 ppm; 12,880 μS100000000000000
    Oxidation Reduction Potential (ORP)240 mV100000000000000
    pH4.0 pH100000000000000
    pH7.0 pH100000000000000
    pH10.0 pH100000000000000
    Salinity0.3 g/L100000000000000
    Salinity3.0 g/L100000000000000
     
    1 gal. Container
    Conductivity1,413 μS100000000000000
    Conductivity12,880 μS1000000000000000
    pH4.0 pH100000000000000
    pH7.0 pH100000000000000
    pH10.0 pH100000000000000
     

    Water-Resistant Multifunction Chemistry Meters

    Test different water-chemistry measurements in dirty, wet conditions. Often used in pools and spas, all of these meters are for use with clean liquids. They meet IP57 for protection from dust and temporary submersion in liquids. Automatic temperature compensation standardizes readings at 77° F to prevent inaccurate results in fluctuating temperatures. Use a calibration solution (not included) and the calibration button to maintain accuracy.
    For Testing Chlorine, Oxidation Reduction Potential (ORP), and pH
    Image of Product. Front orientation. Chemistry Meters. Water-Resistant Multifunction Chemistry Meters .
    Chlorine, oxidation reduction potential (ORP), and pH meters come with three sensors that each take one chemistry measurement.
    Cannot Be Sold To—Import regulations restrict sales to the listed areas.
    Oxidation Reduction
    Potential (ORP)
    pH
    Sensor
    Material
    Range, mV
    Accuracy
    Range,
    pH
    Accuracy
    ATC Range,
    ° F
    Enclosure
    Rating
    Certification
    Ht.
    Batteries
    Included
    Cannot Be
    Sold To
    Display
    Type
    Each
    For Use With Clean Liquids
    Glass-999 to 999±1 mV0 to 14±0.01 pH23 to 194IP57
    		CE Marked
    		6 7/8"YesCanadaLCD00000000000000
     
    Replacement Sensors
    For Testing
    Each
    Oxidation Reduction Potential (ORP)0000000000000
    pH000000000000
    Chlorine0000000000000

    Easy-Read Bench-Top Multifunction Chemistry Meters

    Don’t strain your eyes reading a scale—these bench-top meters indicate exact results on the digital display. For complete resistance to dust and protection from temporary submersion, these meters float and have a housing that meets NEMA 6 and IP67. They're for use with water and other clean liquids. Automatic temperature compensation standardizes readings at 77° F to prevent inaccurate results in fluctuating temperatures. Use a Calibration Solution (not included) and the calibration button to maintain accuracy.
    For Testing Conductivity, Oxidation Reduction Potential (ORP), pH, Resistivity, and Total Dissolved Solids (TDS)
    Image of Product. Front orientation. Chemistry Meters. Easy-Read Bench-Top Multifunction Chemistry Meters .
    Cannot Be Sold To—Import regulations restrict sales to the listed areas.
    Conductivity
    Resistivity
    Oxidation Reduction
    Potential (ORP)
    pH
    Total Dissolved
    Solids (TDS)
    Sensor
    Material
    Range
    Accuracy
    Range
    Accuracy
    Range, mV
    Accuracy
    Range,
    pH
    Accuracy
    Range
    Accuracy
    ATC Range,
    ° F
    Enclosure
    Rating
    Certification
    Ht.
    Wd.
    Dp.
    Batteries
    Included
    Cannot Be
    Sold To
    Display
    Type
    Each
    For Use With Clean Liquids
    Glass0 to 9,999 μS
    10 to 200 mS    		±1%10 kohm to 30 Mohm±1%-999 to 999±1 mV0 to 14±0.01 pH0 to 9,999 ppm
    10 to 200 ppt    		±1%32 to 160IP67, NEMA 6
    		CE Marked
    		2 1/2"2 3/4"7 3/4"YesCanadaLCD000000000000000
     
    Replacement Sensors
    For Testing
    Each
    Oxidation Reduction Potential (ORP), pH0000000000000

    Long-Life Chemistry Sensors

    The flat sensing tip resists deposit buildup and breakage for a long service life in harsh conditions. These sensors have a cable with a bayonet connection for compatibility with most chemistry meters and controllers.
    For Testing pH
    Image of Product. Front orientation. Chemistry Sensors. Long-Life Chemistry Sensors, Portable.
    Image of Product. Front orientation. Chemistry Sensors. Long-Life Chemistry Sensors, Threaded Mount.

    Portable

    Threaded Mount

    Threaded Mount—Threaded sensors have an NPT male connection for installation in pipes and tanks.
    Automatic Temperature Compensation—Sensors with automatic temperature compensation standardize readings at 77° F to prevent inaccurate results in fluctuating temperatures.
    Mobility
    Mount Type
    (Connection)
    Chemistry Features
    pH Range,
    pH
    Temp. Range,
    ° F
    Sensor
    Material
    For Use With
    Choose a Cable
    Length, ft.
    Each
    Portable——0 to 1332 to 140GlassClean Liquids, Dirty Liquids
    3
    ,
    10
    ,
    20
    		00000000000000
    Portable—Automatic Temperature Compensation0 to 1332 to 140GlassClean Liquids, Dirty Liquids
    3
    ,
    10
    ,
    20
    		00000000000000
    —Threaded NPT Male 3/4)—0 to 1332 to 140GlassClean Liquids, Dirty Liquids
    10
    ,
    20
    		00000000000000
    —Threaded NPT Male 3/4)Automatic Temperature Compensation0 to 1332 to 140GlassClean Liquids, Dirty Liquids
    10
    ,
    20
    		00000000000000

    Combination Water Test Kits

    Image of Product. Front orientation. Water Test Kits. Combination Water Test Kits.
    Test for contaminants before installing water-treatment equipment such as boilers and filters. You can also check your pipes and equipment for improper chemical levels that can cause corrosion and scale buildup, shortening their life.
    340 Tests—340-test kits include tests for monitoring municipal water, which is often treated with chlorine.
    Test Kits
    Refill Chemicals
    For Testing
    Range
    Test
    Type
    No. of
    Tests
    Each
    Each
    340 Tests
    Total Hardness
    Iron
    Total Dissolved Solids (TDS)
    Total Chlorine
    pH    		0-30 gpg
    1-5 ppm
    0- 9,990 ppm
    0.1-2.0 ppm
    5-10 pH    		Analog
    Analog
    Digital
    Analog
    Analog    		120
    50

    50
    120    		000000000000000000000000000
     

    Multifunction Chemistry Controllers

    Image of Product. Front orientation. Multifunction Chemistry Controllers. LCD Display.
    Image of Product. Front orientation. Multifunction Chemistry Controllers. LCD Display, Washdown Environments.

    LCD Display

    Washdown Environments

    LCD Display

    Image of Product. Front orientation. Multifunction Chemistry Controllers. LED Display.
    Image of Product. Sensor. Front orientation. Chemistry Sensors.

    LED Display

    Sensor

    The same controller can actuate equipment based on pH or oxidation reduction potential (ORP). Using two SPDT (single pole, double throw) relays, these controllers can turn pumps, valves, and other equipment on or off when a reading reaches the actuation point. They also send output signals to a PLC or other receiving device to record data and control equipment. Automatic temperature compensation standardizes readings at 77° F to prevent inaccurate results in fluctuating temperatures. These controllers are often used for water treatment, electroplating, and chemical processing.
    They require a pH or ORP sensor (sold separately).
    LED Display—Controllers with an LED display are more visible in low-light conditions than those with an LCD display.
    Washdown Environments—Controllers for washdown environments are rated IP65 for protection against low-pressure washdowns and dust.
    Controllers
    pH Sensors
    ORP Sensors
    pH
    Oxidation Reduction
    Potential (ORP)
    No. of Control
    Relays
    Switch
    Designation
    Mechanical Relay Switching
    Current @ Voltage
    Analog Output
    Current
    Range,
    pH
    Accuracy
    Range, mV
    Accuracy
    Input Voltage,
    V AC
    Mount
    Type
    For DIN Panel
    Cutout Size
    Ht.
    Wd.
    Dp.
    Enclosure
    Rating
    Each
    Each
    Each
    LCD Display
    2SPDT
    		5 amp @ 120V AC
    2.5 amp @ 240V AC    		4 mA to 20 mA0 to 14±0.05 pH-1,999 to 1,999±0.5%120
    240    		Panel1/43 3/4"3 3/4"4 3/4"—00000000000000000000000000000000000000000000000
     
    LCD Display—For Washdown Environment
    2SPDT
    		5 amp @ 120V AC
    2.5 amp @ 240V AC    		4 mA to 20 mA-2 to 16±0.17 pH-2,500 to 2,500±0.1%120
    240    		Panel1/43 3/4"3 3/4"6 5/8"IP65
    		000000000000000000000000000000000000000000000
     
    LED Display
    2SPDT
    		5 amp @ 120V AC
    2.5 amp @ 240V AC    		4 mA to 20 mA0 to 14±0.05 pH-1,999 to 1,999±0.5%120
    240    		Panel1/43 3/4"3 3/4"4 3/4"—00000000000000000000000000000000000000000000
     

    Buffer Solutions with Analysis Certificate

    Image of Product. Front orientation. Buffer Solutions. Buffer Solutions with Analysis Certificate, 500 ml Container.
    Image of Product. Front orientation. Buffer Solutions. Buffer Solutions with Analysis Certificate, 1 gal. Container.

    500 ml

    Container

    1 gal.

    Container

    Ensure accurate calibration results with these solutions that come with an analysis certificate traceable to NIST that states they’ve passed a test for concentration.
    For Calibrating
    Calibration
    Point
    Each
    500 ml Container
    Conductivity84 μS0000000000000
    Conductivity1,413 μS000000000000
    Conductivity12,880 μS000000000000
    pH4.0 pH000000000000
    pH7.0 pH000000000000
    pH10.0 pH000000000000
    Total Dissolved Solids (TDS)1,382 ppm000000000000
     
    1 gal. Container
    pH4.0 pH000000000000
    pH7.0 pH000000000000
    pH10.0 pH000000000000
     

    Chemistry Sensors

    A bayonet connection makes these sensors compatible with most chemistry meters and controllers.
    For Testing pH
    Image of Product. Front orientation. Chemistry Sensors. Chemistry Sensors, Portable.
    Image of Product. Front orientation. Chemistry Sensors. Chemistry Sensors, Threaded Mount.

    Portable

    Threaded Mount

    Threaded Mount—Threaded-mount sensors have an NPT male connection for installation in pipes and tanks.
    Automatic Temperature Compensation—Sensors with automatic temperature compensation standardize readings at 77° F to prevent inaccurate results in fluctuating temperatures.
    Mobility
    Mount Type
    (Connection)
    Chemistry Features
    pH Range,
    pH
    Temp. Range,
    ° F
    Sensor
    Material
    For Use With
    Choose a Cable
    Length, ft.
    Each
    Portable——0 to 1232 to 140GlassClean Liquids, Dirty Liquids10000000000000000
    Portable——0 to 1432 to 140GlassClean Liquids, Dirty Liquids
    3
    ,
    20
    		00000000000000
    Portable—Automatic Temperature Compensation0 to 1232 to 140GlassClean Liquids, Dirty Liquids
    3
    ,
    10
    ,
    20
    		00000000000000
    —Threaded NPT Male 3/4)—0 to 1232 to 140GlassClean Liquids, Dirty Liquids
    10
    ,
    20
    		00000000000000
    —Threaded NPT Male 3/4)Automatic Temperature Compensation0 to 1232 to 140GlassClean Liquids, Dirty Liquids
    10
    ,
    20
    		00000000000000

    Remote-Reading Multifunction Chemistry Meters

    Take multiple water-chemistry and temperature measurements in hard-to-reach places from up to 3 feet away. Often used in tap water and wastewater, these meters work in both clean and dirty liquids. Automatic temperature compensation standardizes readings to 77° F to prevent inaccurate results in changing temperatures. The data hold function freezes the current reading on the display. For easy viewing, temperature and chemistry measurements appear on the same screen. These meters are IP57 rated, so they resist dust and withstand temporary submersion.
    To maintain their accuracy, all have a calibration button and some also come with calibration solutions.
    For Testing Oxidation Reduction Potential (ORP), pH, and Temperature
    Image of Product. Front orientation. Chemistry Meters. Remote-Reading Multifunction Chemistry Meters , For Testing Oxidation Reduction Potential (ORP).
    Oxidation reduction potential (ORP), pH, and temperature meters take three measurements. ORP measures the amount of dissolved oxygen in liquids. It determines how efficiently a liquid breaks down contaminants.
    Cannot Be Sold to Canada—Meters cannot be sold to Canada due to import regulations.
    Oxidation Reduction
    Potential (ORP)
    pH
    Range, mV
    Accuracy
    Range,
    pH
    Accuracy
    Temp.
    Accuracy
    ATC Range,
    ° F
    Enclosure
    Rating
    Certification
    Ht.
    Wd.
    Dp.
    Batteries
    Included
    Cannot Be
    Sold To
    Display
    Type
    Each
    For Use With Clean and Dirty Liquids
    -1,000 to 1,000±0.2%0 to 14±0.01 pH±0.9° F32 to 212IP57
    		CE Marked
    		7 1/2"3 9/16"1 5/16"YesCanadaLCD00000000000000
     
    Replacement Sensors
    For Testing
    Each
    Oxidation Reduction Potential (ORP)00000000000000
    pH0000000000000

    Water Test Kits

    Image of Product. Front orientation. Water Test Kits. Water Test Kits, Analog.

    Analog

    All the chemicals and labware you need for on-site sampling and water-quality testing.
    Test Kits
    Refill Chemicals
    For
    Testing
    Range
    Test
    Type
    No. of
    Tests
    Each
    Each
    pH3-10.5 pHAnalog1000000000000000000000000000
     

    Bench-Top Multifunction Chemistry Meters

    Check the pH and conductivity of water and other clean liquids with one bench-top device. This meter has automatic temperature compensation that standardizes readings at 77° F to prevent inaccurate results in fluctuating temperatures. Use a Calibration Solution (not included) and the calibration knob to maintain accuracy.
    For Testing Conductivity and pH
    Image of Product. Front orientation. Chemistry Meters. Bench-Top Multifunction Chemistry Meters .
    Cannot Be Sold To—Import regulations restrict sales to the listed areas.
    Conductivity
    pH
    Sensor
    Material
    Range
    Accuracy
    Range,
    pH
    Accuracy
    ATC Range,
    ° F
    Ht.
    Wd.
    Dp.
    Batteries
    Included
    Cannot Be
    Sold To
    Each
    For Use With Clean Liquids
    Glass0 to 10 μS
    0 to 100 μS
    0 to 1,000 μS
    0 to 10,000 μS    		±2%2 to 12±0.2 pH50 to 1604"3 1/2"4 1/2"YesCanada000000000000000
     
    Replacement Sensors
    For Testing
    Each
    pH, Conductivity000000000000000

    Remote-Reading pH Meters with PC Output

    Transmit pH readings to a PC for analysis. These meters have a sensor on a 6-ft. cable for taking remote readings of water and other clean liquids. They have automatic temperature compensation that standardizes readings at 77° F to prevent inaccurate readings in fluctuating temperatures. Use the included calibration solution and calibration button to maintain accuracy.
    For Testing pH and Temperature
    Image of Product. Front orientation. ZoomedIn view. Chemistry Meters. Remote-Reading pH Meters with PC Output, LCD Display.
    Image of Product. Front orientation. Chemistry Meters. Remote-Reading pH Meters with PC Output.

    LCD

    Display

    Cannot Be Sold To—Import regulations restrict sales to the listed areas.
    pH
    Sensor
    Material
    Range,
    pH
    Accuracy
    ATC Range,
    ° F
    Certification
    Ht.
    Wd.
    Dp.
    Batteries
    Included
    Cannot Be
    Sold To
    Display
    Type
    Each
    For Use With Clean Liquids
    Plastic-2 to 16±0.01 pH-22 to 260CE Marked
    		6 5/16"3 3/16"1 5/8"YesCanadaLCD000000000000000
     
    Replacement Sensors
    Each
    0000000000000000

    Remote-Reading pH Meters

    Monitor pH readings from your smartphone or tablet—download the app to view data up to 160 ft. away using Bluetooth. Made of durable nonglass, the sensor resists breaking. They are for use with dirty liquids, so they stand up to petrochemical, environmental, and agricultural testing. Rated IP67, they seal out dust and withstand temporary submersion. Use a calibration solution (not included) and the calibration setting in the app to maintain accuracy.
    For Testing pH
    Image of Product. Front orientation. Chemistry Meters. Remote-Reading pH Meters .
    Cannot Be Sold to Canada—Meters cannot be sold to Canada due to import regulations.
    Chemistry Meters
    Buffer Solutions
    pH
    Sensor
    Material
    Range,
    pH
    Accuracy
    ATC Range,
    ° F
    Data
    Connection
    Enclosure
    Rating
    Certification
    Ht.
    Wd.
    Dp.
    Batteries
    Included
    Cannot Be
    Sold To
    Each
    Each
    For Use With Dirty Liquids
    Plastic0 to 14±0.02 pH32 to 176BluetoothIP67
    		CE Marked
    		8 7/8"1"7/8"YesCanada0000000000000000000000000000000
     
    Replacement Sensors
    Each
    00000000000000
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