HI-98103 Pocket Checker pH Tester

The HI-98103 Pocket Checker from Hanna Instruments is the next generation of the original Checker pH tester — one of the most popular pH meters in the world, with over one million units sold since its introduction in 1991. Trusted by students and researchers alike, the Checker combines advanced features with the familiar pentagon design, featuring a probe measuring 103mm in length tapered to an 8mm diameter, making it ideal for measurements in test tubes and vials.

The HI-98103 offers automatic calibration to one or two points with automatic buffer recognition, calibrated buffer tags, stability indicator, low battery indicator and selectable automatic shut-off. With ±0.2 pH accuracy, a large LCD display and approximately 1000 hours of battery life, it delivers reliable, economical pH measurement in a compact and practical format.

Key Features

• pH range 0.0 to 14.0 with 0.1 pH resolution and ±0.2 pH accuracy
• Automatic 1 or 2 point calibration with automatic buffer recognition
• Calibrated buffer tags and stability indicator
• Replaceable HI-1271 electrode
• Selectable automatic shut-off (8 minutes, 60 minutes or disabled)
• Approximately 1000 hours battery life from CR2032 Li-ion battery
• Pentagon design with 8mm tapered probe — ideal for test tubes and vials
• Supplied in a plastic carrying case

Typical Applications

• General purpose pH measurement in laboratory and field environments
• Educational and research use
• pH measurement in test tubes, vials and small sample containers
• Water quality and environmental monitoring