Mettler Toledo SevenGo Portable pH Meter Kit, 0.00 to 14.00 pH Range

Mettler Toledo SevenGo Portable pH Meter Kit, 0.00 to 14.00 pH Range Review

Mettler Toledo SevenGo Portable pH Meter Kit, 0.00 to 14.00 pH Range Feature

• InLab 413 SG IP67-certified 3-in-1 electrode for taking pH measurements
• Up to five point calibration for ease of use
• Time interval measurement with automatic data logging, to help prevent data loss
• Data memory, for storing up to 200 Good Laboratory Practices (GLP) data points
• Infrared interface, for data transfer to printer or PC

The SG2-ELK SevenGo pro comes with a pH/ Ion meter with up to five point calibration, an InLab 413 SG IP67 rated 3-in-1 electrode, buffer sachets for easy calibration, and can be used for measuring pH ranges and ion concentrations, storing measurement data, and outputting data to your printer or PC. This meter also comes with a wrist strap for easy portability and a large LCD screen for easy reading of measurements and settings.

pH range -2.000 to 19.999, pH resolution 0.1/0.01/0.001, pH relative accuracy -0.002 to 0.002, mV-range -1999 to 1999, mV-resolution 0.1, mV relative accuracy -0.1 to 0.1, temperature range in degrees C: ATC: -5.0 to 105.0; MTC -30 to 130, temperature resolution 0.1 degrees C, temperature accuracy -0.2 to 0.2 degrees C, LCD display, power supply: 4 AA batteries 1.5 V or NiMH accumulators 1.3 V, operating environment 0 to 40 degrees Celsius; 5 to 85% relative humidity (non-condition), Sensor inputs: BNC (>1012 Ù); Cinch NTC 30 K (both IP67-certified), Printer interfaceIR interface to printer or PC (via RS232 or USB port).

pH testers measure the acidity or alkalinity of a substance and are commonly used by researchers, manufacturers, and hobbyists in aquaculture, agricultural, wine-making and water-testing and for scientific applications.

Mettler-Toledo manufactures precision instruments for use in research, scientific, and quality control labs for the pharmaceutical, chemical, food, and cosmetics industries. This company, founded in 1989, is headquartered in Switzerland.

What’s in the Box?

• SG8 SevenGo pro pH/ ion meter
• InLab 413 SG IP67 rated 3-in-1 electrode
• (4) AA batteries
• Instructions
• Wrist strap
• SevenGo™ clip
• (2) 4.01 buffer sachets
• (2) 7.00 buffer sachets
• (2) 9.21 buffer sachets
• Test certificate
• Declaration of conformity

Oakton pH 11 Portable pH/mV Meter, with All-in-One pH/Temperature Probe

Oakton pH 11 Portable pH/mV Meter, with All-in-One pH/Temperature Probe Review

Oakton pH 11 Portable pH/mV Meter, with All-in-One pH/Temperature Probe Feature

• Push-button calibration with auto-scanning up to five points and buffer recognition options for accuracy
• Automatic Temperature Compensation (ATC) for accurate readings
• Electrode bracket positions electrode for one-handed use
• Built-in electrode stand for benchtop use
• Large, digital LCD display of pH, or mV, and temperature for ease of viewing

The Oakton 35614-20 pH 11 is a handheld meter that has push-button calibration with auto-scanning, and comes with an all-in-one pH/temperature probe. A portable meter is commonly used to measure the pH, mV, and temperature of substance in water treatment and swimming pools in hydroponics, aquaculture, and educational applications.

This meter features a two-electrode bracket for one-handed use, and ATC for accurate readings, push-button capabilities with auto-scanning up to five points, and buffer recognition of National Institute of Standards and Technology (NIST) and USA standards. It has a large, digital LCD display to view pH, mV, and temperature, a hold function for reading and recording data, a ready indicator, and an auto-off function for automatic shut-off after a period of nonuse. The meter has the ability to recall up to 50 data sets, comes with an all-in-one pH/temperature probe (35811-71), and has a built-in electrode stand for benchtop use.

The 35614-20 pH 11 has an operating temperature of 0 to 50 degrees C (32 to 122 F) and buffer recognition standards USA 1.68, 4.01, 7.00, 10.01, 12.45; NIST 1.68, 4.01, 6.86, 9.18, 12.45. pH range -2.00 to 16.00, resolution 0.01, accuracy + or - 0.01. MV range -199.9 to +199.9, -1999 to + 1999, resolution 0.1, 1, accuracy + or - 0.2 + or - 2 mV beyond + or - 199.9. Temperature range -10.00 to 110.0 C, resolution 0.1 degree C, accuracy + or - 0.5 degree C. Its dimensions are 7.38 (l) x 3.5 (w) x 1.75 (d) inches and it weighs 1.3 lb. The meter works with four 1.5-V AAA batteries (not included) or AC adapter (not included) for up to 700 hours of continuous use.

pH testers measure the acidity or alkalinity of a substance. ISEs respond selectively to ions in the presence of other ions, and are commonly used for water-testing, and to analyze biological samples in hydroponics, aquaculture, and agriculture.

Oakton Instruments manufactures an array of scientific instruments for research, industrial, and educational uses. Since 1991, Oakton has distributed a wide variety of instruments such as meters, electrodes, and transmitters. Oakton is based in Vernon Hills, IL, and has facilities in Europe, Asia, and China.

What’s in the Box?

• Meter 35614-20
• All-in-one probe
• Two electrode holders
• Instruction manual

HANNA Combo pH /EC/TDS/C tester Product ID: HI98130

HANNA Combo pH /EC/TDS/C tester Product ID: HI98130 Review

HANNA Combo pH /EC/TDS/C tester Product ID: HI98130 Feature

• Offers high accuracy pH, EC/TDS and temperature measurements in a single tester
• Has a large easy-to-read, dual-level LCD and automatic shut-off
• Readings are automatically compensated for the effects of temperature (ATC)
• Resists contamination by salts and other substances

Combo pH /EC/TDS/°C tester offer high accuracy pH, EC/TDS and temperature measurements in a single tester. No more switching between meters for your routine measurements. The waterproof Combo (it even floats) has a large easy-to-read, dual-level LCD and automatic shut-off. pH and EC/TDS readings are automatically compensated for the effects of temperature (ATC). This technologically advanced tester has a replaceable pH electrode cartridge with an extendable cloth junction as well as an EC/TDS graphite electrode that resists contamination by salts and other substances. This gives these meters a greatly extended life. Your tester no longer needs to be thrown away when the pH sensor is exhausted.

Milwaukee Instruments AG900 Ph/EC/TDS Meter Kit

Milwaukee Instruments AG900 Ph/EC/TDS Meter Kit Review

Milwaukee Instruments AG900 Ph/EC/TDS Meter Kit Feature

• Includes needed calibration solutions
• Includes 9v battery
• Auto-temperature correcting
• Includes scoop for soil testing
• Detailed instruciton booklet included

The Milwaukee AG900 is a complete testing kit that includes all you need to produce accurate reading for 3 of th most important levels in your plant production. pH, EC (Electrical Conductivity) and TDS (Total Dissolved Solids). Each of these factors can be very important to your plants and their chance to survive and thrive. The AG900 includes an SM802 Hand-held microprocessor, a measuring cup (used for testing soil), calibration solution, protective carrying case, 9V battery and an In-Depth manual that explains how to successfully operate your testing kit. The SM802, with a conductivity range that goes up to 6.00 mS/cm and the TDS up to 4000 ppm is ideal for testing in crop production. Soil and well water pH that is too acidic or alkaline can have an adverse effect on plant nutrient and water uptake and directly affect the efficiency of fertilizer, herbicides and pesticides. Soil Conductivity is checked before fertilizer application to pinpoint field needs and after fertilization to establish its effectiveness. Supplice with the MA850 interchangeable probe to measure pH, Conductivity and TDS. The pH electrode utilizes a fiber junction to reduce contamination when measuring fertilizer solutions.

Hanna Instruments HI 99161N Portable pH/Temperature Meter, For Food and Dairy Applications

Hanna Instruments HI 99161N Portable pH/Temperature Meter, For Food and Dairy Applications Review

Hanna Instruments HI 99161N Portable pH/Temperature Meter, For Food and Dairy Applications Feature

• Portable and waterproof pH and temperature meter designed for use in the food and dairy industry
• Conical electrode tip for measuring liquids and semi-solids
• Automatic one or two point calibration for ease of use
• Automatic temperature compensation (ATC) to eliminate additional calculations
• Battery error protection system (BEPS) to prevent inaccurate readings

The HI 99161N is a portable waterproof pH and temperature meter designed for use in the food and dairy industry, which comes with the FC 202D combination pH and temperature probe. The probe has a cleanable polyvinylidene fluoride (PVDF) body, with a conical tip that can measure liquids and semi-solids such as meats and cheese. The FC 202D electrode has a diffusion prevention sleeve to protect it from clogging in viscous liquids, and is free from silver chloride, which can be poisonous and contaminate food. The probe has a DIN connector and 1 m (3.3’) cable for reaching test sites.

The HI 99161N meter features a large multi-level LCD screen, and automatic temperature compensation (ATC) from 0 to 60 degrees C (32 to 140 degrees F). A battery percent displays at startup, an auto off function after eight minutes, and the battery error protection system (BEPS) to help prevent inaccurate readings. The meter comes with (3) AAA 1.5 V batteries that provide approximately 1200 hours of continuous use. Calibration is automatic at one or two points, and starter calibration and cleaning sachets are included.

pH range is -2.00 to 16.00 (+ or - 0.02pH) with a resolution of 0.01 pH. Temperature range is - 5.0 to 105.0 degrees C (23.0 to 221.0 degrees F) + or - 0.5 degrees C (up to 60 degrees C), + or - 1 degrees C (outside); + or - 1.0 degrees F (up to 140 degrees F), + or - 2 degrees F (outside), with a resolution of 0.1 degrees C or F. Dimensions are 152 x 58 x 30 mm (6.0 x 2.3 x 1.2”), with weight 205g (7.2 oz.).

pH testers measure the acidity or alkalinity of a substance and are commonly used by researchers, manufacturers, and hobbyists.

Hanna Instruments manufactures a wide variety of analytical instrumentation, including pH meters, multi-parameter meters, electrodes, chemical reagents and buffer solutions. Founded in 1978, Hanna is headquartered in Woonsocket, RI, with subsidiaries located in 32 countries. Hanna Instruments holds many firsts in the field of analytical instrumentation, including the world’s first pH electrode with a built in temperature sensor, electronic pocket-sized pH tester, and replaceable electrode pH pocket tester. To assure the quality of its products, Hanna is a vertically integrated manufacturer and does not subcontract any part of its manufacturing.

What’s in the Box?

• Meter
• FC 202D pH/temperature probe
• HI 70004 pH 4.01 and HI 70007 pH 7.01 buffer solution sachets
• HI 700642 electrode cleaning solution sachets (2)
• (3) 1.5V AAA batteries
• Instructions
• Hard carrying case

HDE Digital pH Meter Tester

HDE Digital pH Meter Tester Review

HDE Digital pH Meter Tester Feature

• This digital pen style pH meter is an ideal instrument for anywhere you may need to test pH levels.
• , very accurate and durable. Measuring pH Range: 0.0 - 14.0 pH. Resolution: 0.1 pH.
• Accuracy: ¡À0.1 pH (20¡ãC), ¡À0.2 pH. Operating Temperature: 0 - 50¡ãC (32 - 122¡ãF).
• Meter comes with protective plastic case and calibration screwdriver.
• Size: 6" x 1" x 5/8";

This digital pen style pH meter is an ideal instrument for any aquarium, the fishing industry, swimming pools, school laboratories, food & beverage etc. Please be sure to calibrate with buffer solution before use.

Horiba B-213 Twin Compact pH Pocket Tester

Horiba B-213 Twin Compact pH Pocket Tester Review

Horiba B-213 Twin Compact pH Pocket Tester Feature

• Measure samples as small as 150 Lwithout immersing in solution!
• Two-point autocalibration
• Automatic range selection
• Calibration and slope adjustment
• Product Type: pH
• Meter style: Tester
• Dimensions (" W): 1-1/4
• Dimensions (" H): 6-1/4
• Dimensions (" D): 3/4
• Range (pH): 2.00 to 12.00
• Resolution (pH): 0.01
• Accuracy (pH): ±0.1
• Temperature compensation: Automatic
• Display: LCD
• Calibration: 2
• Waterproof: Yes
• Buffer recognition: NIST, DIN
• Power: CR-2032 lithium 3 V battery (included)
• Brand: Horiba
• Model: 315005
• Part Number: AO-05759-05
• Package Quantity: EACH

Use this pocket-size, waterproof meter anywhere. Built-in sensor lets you take measurements two ways: by simply immersing meter tip in sample or by placing a small amount of your sample directly on sample pad. Results are instantly displayed on the convenient 3-1/2-digit LCD. Two-point autocalibration combines with buffer recognition at pH 4.00 and 7.00 buffer values for simple, quick calibration. Order replacement sensor cartidges and replacement solution kits at right. What's Included: carrying case, batteries, and a solution kit containing calibrating solution and deionized water.

Hanna Instruments HI 4222 Dual Channel pH/ORP/ISE/Resistivity/Salinity/Temperature Benchtop Meter, with Color LCD

Hanna Instruments HI 4222 Dual Channel pH/ORP/ISE/Resistivity/Salinity/Temperature Benchtop Meter, with Color LCD Review

Hanna Instruments HI 4222 Dual Channel pH/ORP/ISE/Resistivity/Salinity/Temperature Benchtop Meter, with Color LCD Feature

• Five-point calibration with five custom and eight memorized buffers, for ease of use
• Backlit 240 by 320 dot-matrix color screen for readability
• Can store up to 10 lots, with 5000 samples per lot until data downloaded
• USB and RS232 for downloading data to Windows
• Cal-Check function to prevent erroneous readings

The HI 4222 is a micro-processor based pH, mV, ion selective electrode (ISE) and temperature bench meter.

The meter features a large backlit 240 x 320 dot-matrix color screen, automatic temperature compensation (ATC) or manual compensation, an outside of calibration range warning, and the Hanna Cal-Check function to ensure that the device is properly calibrated. Calibration is automatic, up to five-point, with five custom and eight standard buffers (1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45 pH) and an on-screen, step-by-step calibration tutorial.

The meter follows good laboratory practices and captures calibration information, buffer values, and expiration date alongside logged data. All features are available in English, Italian, French, and Spanish languages.

pH range is -2.0 to 20.0; -2.00 to 20.00; -2.000 to 20.000 pH (+ or - 0.1: 0.01 pH; 0.002 pH) with resolution 0.1; 0.01; 0.001 pH. Temperature range is – 20.0 to 120.0 degrees C + or - 0.2 degrees C with a resolution of 0.1 degrees C. ORP range is + or - 2000 with accuracy + or - 0.2 mV, and resolution 0.1 mV. ISE range is 1E-7 to 9.99E10 concentration, + or - 0.5% (monovalent ions): + or – 1%. Power supply is a 12 VDC adapter. Dimensions are 159 x 230 x 93 mm (6.3 x 9.1 x 3.7") with weight 800 g (1.8 lbs).

pH testers measure the acidity or alkalinity of a substance and are commonly used by researchers, manufacturers, and hobbyists.

Hanna Instruments manufactures a wide variety of analytical instrumentation, including pH meters, multi-parameter meters, electrodes, chemical reagents and buffer solutions. Founded in 1978, Hanna is headquartered in Woonsocket, RI, with subsidiaries in 32 countries. Hanna Instruments holds many firsts in the field of analytical instrumentation, including the world’s first pH electrode with a built-in temperature sensor, electronic pocket-sized pH tester, and replaceable electrode pH pocket tester. To ensure the quality of its products, Hanna is a vertically integrated manufacturer and does not subcontract any part of its manufacturing.

What’s in the Box?

• Glass body pH electrode
• Temperature probe
• 12 VDC adapter
• pH 4 and pH 7 buffer solutions
• Electrode refilling solution
• Electrode holder
• Instruction manual

Oakton Precision pH/mV Simulator, For Meters, Transmitters, Controllers

Oakton Precision pH/mV Simulator, For Meters, Transmitters, Controllers Review

Oakton Precision pH/mV Simulator, For Meters, Transmitters, Controllers Feature

• LED display for ease of viewing
• Push-button operation allows for easy selection of values and buffers
• Wide range of output values for more readings
• Splash-proof membrane keypad for security
• Bayonet Neill-Concelman (BNC) connector for tight coaxial cable connection

The Oakton WD-35652-00 Precision pH/mV Simulator is used for testing bench-top or handheld meters, controllers and transmitters. This simulator has push-button operation allowing for easy selection of values, and USA, National Institute of Standards and Technology (NIST) buffers. It has a wide range of output values for more readings. The simulator has an LED display for ease of viewing, a low-battery indicator, and a splash-proof membrane keypad for security. It comes with a BNC connector for tight coaxial cable connection. Its high impedance simulation is useful for testing suspected leakage problems.

The WD-35652-00 Precision pH/mV Simulator is able to simulate pH values of: 1.00/1.68/4.01/6.86/7.00/9.18/10.01 or 12.45, mV values, -1,800/-900/-390/390/900 or 1,800. pH accuracy + or - 0.05, mV accuracy of + or - 2 mV. Its high impedance simulation (HiZ) is 1 G ohm at 4.01 pH & 10.01 pH. Its dimensions are 10.375(d) x 2.75(w) x 5.75(h) inches [3.5 (d) x 7.0 (w) x 14.6 (h) cm], weighs 200 g (boxed), comes with a 1-meter cable, and requires four AAA batteries (included).

A simulator is designed to test the accuracy of a meter, controller, or transmitter. pH measures the acidity or alkalinity of a substance and mV measurement provides a megavolt value. This simulator is used for chemical analysis within the aquaculture, agriculture, pharmaceutical, food processing, and lab industries.

Oakton Instruments manufactures an array of scientific instruments for research, industrial, and educational uses. Since 1991, Oakton has distributed a wide variety of instruments such as meters, electrodes, and transmitters. Oakton is based in Vernon Hills, IL, and has facilities in Europe, Asia, and China.

What’s in the Box?

• Simulator
• 1-meter BNC cable
• Four AAA batteries

HM Digital TDS-EZ Meter/Tester, Water/ppm/Purity/Filter

HM Digital TDS-EZ Meter/Tester, Water/ppm/Purity/Filter Review

HM Digital TDS-EZ Meter/Tester, Water/ppm/Purity/Filter Feature

• Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries
• Hold Function: saves measurements for convenient reading and recording
• Highly efficient and accurate due to its advanced microprocessor technology
• Display: large and easy-to-read LCD screen
• 2 YEAR WARRANTY

Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Fun, translucent blue housing that's very strong and durable. Includes a TDS chart sticker on the back of the meter that explains TDS values. Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking 'x10' image.

Thermo Scientific Orion 2-Star Benchtop pH Meter, 0.001 to 14.999 pH Range, 0.001/0.01/0.1 pH Resolution

Thermo Scientific Orion 2-Star Benchtop pH Meter, 0.001 to 14.999 pH Range, 0.001/0.01/0.1 pH Resolution Review

Thermo Scientific Orion 2-Star Benchtop pH Meter, 0.001 to 14.999 pH Range, 0.001/0.01/0.1 pH Resolution Feature

• Bright, backlit LCD display with ready indication
• Simultaneous display of pH, mV or ORP, plus temperature
• Convenient built in quick start guide with calibration instructions
• IP54 dustproof and splashproof

Thermo Orion 2-Star Benchtop pH Meter 0.001 to 14.999 pH, 0.001/0.01/0.1 pH. Economical, accurate measurement of pH, mV and temperature. Specifically designed for environmental, industrial and educational applications, the Orion 2-Star is a significant upgrade from Thermo Scientific Orion 410A+ and 420A+ meters. Bright, backlit LCD display with ready indication. Simultaneous display of pH, mV or ORP, plus temperature. Convenient built in quick start guide with calibration instructions. Automatic or manual temperature compensation. IP54 dustproof and splashproof. Improved stability algorithm improves calibration and measurement accuracy. Advanced self tests on meter operation, self diagnostics. 50 point datalogger, by time, stability or manual read with time and date stamp; downloadable to printer or computer via RS232 connection. Relative accuracy: +/-0.002 pH. Range: +/-1999.9 mV. Resolution 0.1 mV. Temperature range -5 to 105°C. Temperature resolution 0.1° up to 99.9°C. Temperature relative accuracy: +/-0.1°C. Sensor types: pH electrode. Data output: RS232. Ambient operating temperature: 5 to 45°C. Orion #: 1111000.

HM Digital PH-200 Waterproof pH Tester

HM Digital PH-200 Waterproof pH Tester Review

HM Digital PH-200 Waterproof pH Tester Feature

• Ideal for residential and commerical use. Has a waterproof housing.
• Auto off, data hold function and low battery indicator.
• Measures pH and Temperature. Large and easy to read LCD screen
• Includes a cap, batteries, lanyard and pH 7.0 buffer.
• Factory calibrated. Can be recalibrated with a mini-screwdriver.

The HM Digital PH-200 Waterproof pH Tester features and auto off, data hold function and low battery indicator, a large and easy to read LCD screen, and a waterproof housing making it ideal for residential and commerical use. It measures pH and temperature. It includes a cap, batteries, lanyard and pH 7.0 buffer. Factory calibrated. Can be recalibrated with a mini-screwdriver.

Hanna Instruments HI 98172N pH/ORP/ISE Meter

Hanna Instruments HI 98172N pH/ORP/ISE Meter Review

Hanna Instruments HI 98172N pH/ORP/ISE Meter Feature

• Up to five-point calibration with seven memorized and five custom buffers
• Replaceable probes to prolong the life of the meter
• Manual or Automatic Temperature Compensation, to eliminate the need for extra calculations
• Portable, for use in the field
• LCD screen for readability

The HI 98172 is a portable pH, Oxidation Reduction Potential (ORP), Ion Selective Electrode (ISE), and temperature meter suitable for field use. The meter features five-point calibration with seven standard (1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45) and five custom buffers. It can also measure with ISE electrodes on a ppm scale.

The instrument includes replaceable pH and temperature probes, an LCD screen, and Manual or Automatic Temperature Compensation. Diagnostics provide a reminder when a new calibration is necessary and a calibration range warning to notify the user if a reading appears too far from the calibration periphery. The diagnostics also monitor electrode aging and alert user when the electrode needs cleaning. It also has a Good Laboratory Practice (GLP) feature to view last calibration data for each range, logging capability of up to 50 samples on each range, and a PC interface.

pH range is -2.00 to 16.00 pH + or – 0.01 pH at 20 degrees C with a resolution of 0.01 pH. mV range is + or – 699.9; 2000 mV (+ or – 0.2 mV; 1 mV at 20 degrees C) with a resolution of 0.1; 1 mV. Temperature range is -20.0 to 120.0 degrees C + or - 0.4 degrees C (0.8 degrees F) at 20 degrees C (excluding probe error) with a resolution of 0.1 degrees C (0.1 degrees F). Input impedance is 1E12 Ohms and the device operates on four 1.2V AA rechargeable batteries. Dimensions are 196 x 80 x 60 mm/7.7” x 3.1” x 2.4’’ (H x W x D), and weighs 425 g (15 oz.).

pH testers measure the acidity or alkalinity of a substance and are commonly used by researchers, manufacturers, and hobbyists.

Hanna Instruments manufactures analytical instrumentation and supplies, including pH meters, electrodes, chemical reagents, and buffer solutions. The company, founded in 1978 and headquartered in Woonsocket, RI, meets International Organization for Standardization (ISO) 9001 standards.

What’s in the Box?

• HI 1230B Combination double-junction, gel pH electrode
• HI 7662 stainless steel temperature probe with 1 m cable
• pH 4.01 and 7.01 buffer solutions (20 mL each)
• 100 mL plastic beaker
• HI 710041 inductive recharger
• 1.2V AA, 1300 mAh rechargeable batteries (4)
• Instructions
• Rugged carrying case

TDS-EZ Water Quality Tester

TDS-EZ Water Quality Tester Review

TDS-EZ Water Quality Tester Feature

• Economy model that is ideal for end-users.
• Highly efficient and accurate due to its advanced microprocessor technology.
• Hold Function: saves measurements for convenient reading and recording.
• Auto-off function: the meter shuts off automatically after 10 minutes of non-use.
• Measurement Range: 0-9990 ppm. Display: large and easy-to-read LCD screen.

Ideal for all basic water testing applications. The best value meter in the world! .. Economy model that is ideal for end-users. .. Highly efficient and accurate due to its advanced microprocessor technology. .. Hold Function: saves measurements for convenient reading and recording. .. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. .. Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking 'x10' image. .. Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. ...