Digital pH Meters

The ability to test the pH when farming and gardening  and even a huge range of other activities can be of greatest importance to you.

Specifically soil pH is very important because it has such a strong influence on how well your crops will grow. The balance of Acid forming nutrients and Alkaline forming nutrients  will influence root development, microbial activity, fungi, symbiotic nitrogen fixation by legumes and the availability of nutrients. By using our meters you can monitor the pH levels to ensure an ideal pH is maintained and also catch any problems early that would otherwise devastate your crops if you were not able to detect and correct the problem.

Ideal soil pH may vary depending on what you are growing ,but generally a range between 6.0 and 7.0 is ideal as it is at this level that most beneficial bacteria in the soil can thrive and release valuable nutrients to your crops.

All of our pH testers feature 2-point calibration for better accuracy throughout the entire pH scale. You will need to use both pH 7.01, pH 4.01 calibration solutions to get this accuracy.

Other uses of a pH meter in agriculture may include:

  • Measuring plant leaf sap pH
  • Measuring foliar and hydroponic fertilizers
  • Measuring pH of rain and irrigation water
  • Testing pH of crop juices
There are innumerable other non-agriculture related areas where obtaining quick and accurate pH levels of liquids is necessary. We have chosen only the best, most accurate and reliable digital pH meters that we have tested, to list on our website.

pH Meters

Results 1 - 20 of 20

Kelway Acidity Testing Meter for Soil

The Kelway Acidity Testing Meter is a portable scientific meter that tests the acidity in soils. It requires no batteries and should be used with slightly moist soil to get dependable readings.
 
Sales price: $69.99
SKU: AML-PHD
 
 
 
 
 

Atago Digital pH Meter (DPH-2)

Quality Atago pH meter. Features 3 point calibration, water resistant automatic temperature compensation and accuracy to 0.1pH.
 
Sales price: $109.99
SKU: DPH-2
 
 
 
 
 

Extech ExStik Refillable pH Meter With ATC - PH110

This pH meter features a flat surface electrode which lets you quickly and easily test a samples pH on the spot. With a refillable electrode for highly accurate readings every time.
 
Sales price: $119.99
SKU: PH110
 
 
 
 
 

Kelway Calibrating Acidity Testing Meter for Soil (3.5 to 8 pH)

The Kelway Acidity Testing Meter is a portable scientific meter that tests the acidity in soils. It measures moisture in soil and should be used with slightly moist soil to get dependable readings.
 
Sales price: $139.99
SKU: AML-HB2
 
 
 
 
 

Replacement Sensor for the Horiba LAQUA Twin pH Meter B-713

Over time the pH meters will start to dry out, get protein in the sensor and develop cracks on the glass membrane. This sensor is designed to replace the entire sensor for the Laqua Twin pH meter....
 
Sales price: $144.99
SKU: B-713_sensor
 
 
 
 
 

Extech Combination pH and Conductivity meter - EC500

This waterproof 5 in 1 meter lets you measure electrical conductivity, the pH, total dissolved solids, salinity and temperature all in an easy to use meter. Includes auto-ranging and 8 selectable...
 
Sales price: $159.99
SKU: EC500
 
 
 
 
 

ExTech Waterproof Palm pH, ORP Cabled Meter (PH220-C)

This handy palm sized meter measures the pH and temperature of your test sample with a 39 inch cabled electrode. Comes with protective holster, pH buffers and a 9V battery. Range pH 0.00 to 14.00pH,...
 
Sales price: $169.99
SKU: PH220-C
 
 
 
 
 

ExTech Waterproof Palm pH, ORP Stick Meter (PH220-S)

This handy palm sized meter measures the pH, ORP and temperature of your test sample with a stick style electrode. Comes with protective holster, pH buffers and a 9V battery. Range pH 0.00 to...
 
Sales price: $169.99
SKU: PH220-S
 
 
 
 
 

Extech Combination pH and Conductivity Kit - EC510

This waterproof 5 in 1 meter kit lets you measure electrical conductivity, the pH, total dissolved solids, salinity and temperature all in an easy to use meter and kit.
 
Sales price: $189.99
SKU: EC510
 
 
 
 
 

Extech Oyster Series pH ORP Kit (Oyster-15)

This oyster meter will measure pH and ORP and comes in a handy carrying case. This meter is great for both laboratory use and field use thanks to its flip up design and rugged splash proof covering.
 
Sales price: $219.99
SKU: OYSTER-15
 
 
 
 
 

Horiba LAQUA Twin pH Meter (B-713)

Use this pocket-size, waterproof meter anywhere. Built-in sensor lets you take measurements two ways. Simply immersing meter tip in sample or by placing a small amount of your sample directly onto...
 
Sales price: $249.99
SKU: B-713
 
 
 
 
 

Extech pH, ORP, Temp Meter - PH300

Features automatic calibration, ATC,data storage, and self-diagnostics. The meter can recognize up to 13 types of pH standard buffer solutions. Digital filter for speed and accuracy. Ammonia and...
 
Sales price: $269.99
SKU: PH300
 
 
 
 
 

Extech Oyster Series pH, ORP and Temperature Kit (Oyster-16)

The same as Oyster-15 kit but added temperature probe. Measures pH, ORP and temp. Comes in a handy carrying case. This meter is great for both laboratory use and field use thanks to its flip up...
 
Sales price: $269.99
SKU: OYSTER-16
 
 
 
 
 

Extech Heavy Duty pH, ORP and Temperature Kit

This kit comes with the heavy duty pH ORP Temperature meter and a mini pH electrode, Temperature Probe, and a handy carrying case. Measures ORP to 1999mV and pH 0.00 to 14.00 pH
 
Sales price: $299.99
SKU: 407228
 
 
 
 
 

Extech Oyster Series pH, Conductivity Meter - Polymer C

Polymer Cell - Measurement range - 10 to 19990μS, pH 0.01 to 14.00pH. The oyster series ph, conductivity and TDS meter is great for both field use and bench top use. Comes with all the necessary...
 
Sales price: $359.99
SKU: 341350-P
 
 
 
 
 

Extech Oyster Series pH, Conductivity Meter - Glass Cell

Polymer Cell - Measurement range - 10 to 19990μS, pH 0.01 to 14.00pH. The oyster series ph, conductivity and TDS meter is great for both field use and bench top use. Comes with all the necessary...
 
Sales price: $359.99
SKU: 341350
 
 
 
 
 

Extech pH ORP Temperature Data Logger – SDL100

This temperature, pH and ORP data logging meter is designed to test all three of these measurements and save up to 20,000 readings to an SD card. This meter saves the information in Excel format.
 
Sales price: $359.99
SKU: SDL100
 
 
 
 
 

Extech Benchtop Water Quality Meter/Stirrer for pH, ORP and Temp (WQ500)

This highly accurate benchtop meter features a built-in magnetic stirrer and a probe support rod and clamp. It measures pH, ORP, and temperature accurately over a wide range.
 
Sales price: $478.99
SKU: WQ500
 
 
 
 
 

Extech Benchtop Water Quality Meter/Stirrer 6 Parameter (WQ510)

This highly accurate benchtop meter features a built-in magnetic stirrer and a probe support rod and clamp. It measures 6 water quality parameters including pH, ORP, salinity, conductivity and more.
 
Sales price: $628.99
SKU: WQ510
 
 
 
 
 

Extech Benchtop Water Quality Meter/Stirrer 7 Parameter (WQ530)

This highly accurate benchtop meter features a built-in magnetic stirrer and a probe support rod and clamp. It measures 6 water quality parameters including pH, ORP, salinity, dissolved oxygen and...
 
Sales price: $828.99
SKU: WQ530