Hanna HI98100 Checker Plus pH Tester

Hanna HI98100 Checker Plus pH Tester

The Hanna HI98100 Checker Plus is a compact, affordable, and user-friendly digital pH tester designed for reliable pH measurements in a wide variety of applications. Whether you’re testing in the lab, field, classroom, or home, the Checker Plus combines accuracy, durability, and simplicity—making it one of the most popular choices for routine pH monitoring.

Features

• Wide pH Measurement Range
  Measures from 0.00 to 14.00 pH, covering the full scale of pH acidity and alkalinity. As a result, it’s versatile enough for use in agriculture, water testing, education, and food production.

• High Resolution and Accuracy
  Delivers precise readings with a resolution of 0.01 pH and an accuracy of ±0.2 pH, ideal for general-purpose applications. Therefore, it provides dependable results without complex setup or calibration procedures.

• Automatic Calibration for Ease of Use
  Supports automatic calibration at one or two points, helping to maintain consistent accuracy over time. Moreover, the calibration process is quick and intuitive, making the device suitable even for beginners.

• Replaceable Electrode for Long-Term Value
  Comes with the HI1271 replaceable pH electrode, which can be swapped out when worn, rather than replacing the entire unit. This feature extends the life of your investment while reducing long-term cost.

• Exceptional Battery Life
  Powered by a CR2032 lithium-ion battery, the tester operates for approximately 1,000 hours of continuous use. Consequently, it’s highly reliable for frequent field or classroom use without the need for constant charging.

• Customizable Auto-Off Function
  To conserve battery, the tester includes an auto-off feature that can be set to 8 minutes, 60 minutes, or disabled entirely, depending on your workflow preferences.

• Compact and Lightweight Design
  At just 50 grams, the Checker Plus is slim, ergonomic, and easy to carry. In addition, its durable casing makes it suitable for portable or benchtop environments.

Specifications

• pH Range: 0.00 to 14.00 pH

• pH Resolution: 0.01 pH

• pH Accuracy: ±0.2 pH

• Calibration: Automatic, 1 or 2 points

• Electrode: HI1271 (included, replaceable)

• Battery Type/Life: CR2032 Li-ion, approx. 1000 hours

• Auto-Off: Selectable (8 min, 60 min, or disabled)

• Operating Environment: 0 to 50°C; RH max 95%

• Dimensions: 50 x 174 x 21 mm

• Weight: 50 g

Applications

• Educational Use
  Perfect for classroom experiments and lab training thanks to its simplicity, durability, and low maintenance.

• Food and Beverage Industry
  Quickly check pH levels in ingredients, juices, or processed foods to maintain product quality.

• Agriculture and Horticulture
  Assess soil or nutrient solution pH to optimize plant growth and prevent nutrient lockout.

• Water Quality Testing
  Monitor the pH of drinking water, aquariums, pools, or environmental sources to ensure proper balance.

• Home Use and DIY Projects
  Great for home brewers, hobby gardeners, or anyone needing basic but reliable pH measurements.