PH / ORP Meters

 
Thermo Scientific STARA2217 - Orion Star A221 pH Portable Meter ORP Kit
Catalog: STARA2217
  • Style (pH Meters): Hand-Held
  • ATC Temperature Compensation: Yes
  • Waterproof Housing: Yes

List Price: $1,400.00

Your Price: $1,144.65

Sign-in for EDU Pricing!

In Stock:
  • View Payment Options
Thermo Scientific STARA2218 - Orion Star A221 pH Portable Meter Food Kit
Catalog: STARA2218
  • Style (pH Meters): Hand-Held
  • ATC Temperature Compensation: Yes
  • Waterproof Housing: Yes

List Price: $1,700.00

Your Price: $1,389.94

Sign-in for EDU Pricing!

In Stock:
Thermo Scientific STARA3210 - Orion Star A321 pH Portable Meter
Catalog: STARA3210
  • Style (pH Meters): Hand-Held
  • ATC Temperature Compensation: Yes
  • Waterproof Housing: Yes
  • Shipping Weight: 2 LBS

List Price: $976.00

Your Price: $797.99

Sign-in for EDU Pricing!

In Stock:
Thermo Scientific STARA3215 - Orion Star A321 pH Portable Meter Kit
Catalog: STARA3215
  • Style (pH Meters): Hand-Held
  • ATC Temperature Compensation: Yes
  • Waterproof Housing: Yes
  • Shipping Weight: 2 LBS

List Price: $1,680.00

Your Price: $1,373.58

Sign-in for EDU Pricing!

In Stock:
Thermo Scientific STARA3240 - Orion Star A324 pH/ISE Portable Meter
Catalog: STARA3240
  • Style (Dissolved Oxygen Meter/Fluoride): Hand-Held
  • pH Resolution: 0.1, 0.01, 0.001
  • pH Accuracy: ±0.002
  • Product Weight: 1.2 LBS
  • Shipping Weight: 1.5 LBS

List Price: $1,370.00

Your Price: $1,120.13

Sign-in for EDU Pricing!

In Stock:
Thermo Scientific STARA3245 - Orion Star A324 pH/ISE Portable Meter Kit
Catalog: STARA3245
  • Style (Dissolved Oxygen Meter/Fluoride): Hand-Held
  • pH Resolution: 0.1, 0.01, 0.001
  • pH Accuracy: ±0.002
  • Product Weight: 1.2 LBS
  • Shipping Weight: 1.5 LBS

List Price: $1,960.00

Your Price: $1,602.52

Sign-in for EDU Pricing!

In Stock:
Thermo Scientific STARA3260 - Orion Star A326 pH/RDO/DO Portable Meter
Catalog: STARA3260
  • Style (Dissolved Oxygen Meter/Fluoride): Hand-Held
  • Style (pH Meters): Hand-Held
  • Measure Dissolved Oxygen: Yes
  • ATC Temperature Compensation: Yes
  • Waterproof Housing: Yes

List Price: $1,660.00

Your Price: $1,357.23

Sign-in for EDU Pricing!

In Stock:
Thermo Scientific STARA3290 Orion Star A329 pH/ISE/Conductivity/RDO/DO Portable Meter
Catalog: STARA3290
  • Style (Dissolved Oxygen Meter/Fluoride): Hand-Held
  • Style (pH Meters): Hand-Held
  • Measure Dissolved Oxygen: Yes
  • Measure Temperature: Yes
  • ATC Temperature Compensation: Yes
  • Measure pH: Yes

List Price: $2,220.00

Your Price: $1,815.09

Sign-in for EDU Pricing!

In Stock:
Pico TA137 DrDAQ Redox Sensor
Catalog: TA137
  • HTS/Schedule B Number: 90278020
  • Country of Origin: China

Your Price: $199.00

In Stock:
  • Free shipping over $99
  • View Payment Options

Your Price: $662.01

Sign-in for EDU Pricing!

In Stock:
  • Free shipping over $99 - Code: FREESHIP
  • View Payment Options

Your Price: $789.48

Sign-in for EDU Pricing!

In Stock:
  • Free shipping over $99 - Code: FREESHIP
  • View Payment Options

Your Price: $881.60

Sign-in for EDU Pricing!

In Stock:
  • Free shipping over $99 - Code: FREESHIP
  • View Payment Options
null
null
null
null
null
null
null
null
null
null
null
null

Recommended for you

PH / ORP Meters

pH Meters measure the acidity or alkalinity of liquids. Most of them have a special probe connected that measures the pH and a screen that displays the information. The probe is usually made of glass. These meters range from simple devices to complex systems.

ORP Meters, Oxidation-reduction potential, measures the degree to which a substance is capable of oxidizing or reducing another substance. ORP is measured in millivolts (mV). A positive ORP reading indicates that a substance is an oxidizing agent. A negative ORP reading indicates that a substance is a reducing agent.
 
pH Meter Applications
  • Agriculture
  • Fish farming
  • Aquariums
  • Boilers
  • Cooling towers
  • Drinking water
  • Food and Beverage
  • Hydroponics
  • Laboratories
  • Chemical industry
  • Pools/Spas
  • Water treatment
Key Features of pH Meters to Consider
  • RENEW feature that tells you when it’s time to replace your pH electrode
  • CAL feature that tells you when it’s time to recalibrate your meter
  • Flat Surface pH electrode that is completely waterproof and rugged enough to withstand harsh environments
  • Memory stores 15 readings
  • “On-the-Spot” measurements
This video demonstrates the waterproof Extech pH meters and discusses solutions to the top problems users have when using traditional pH meters: 1) clogged junctions, broken bulbs, and limited applications 2) the shelf life of electrodes 3) calibration and 4) recording data.
 
X