The Hanna Instruments HI99151 is a durable, waterproof, and portable pH and temperature meter designed specifically for beer analysis. Automatic calibration is performed at one or two points with two sets of buffers. All calibration and measurement readings are automatically compensated for temperature variations.

The HI99151 uses the FC214D titanium body, amplified pH electrode that offers numerous features that improve pH testing for beer analysis. The split-level LCD displays both pH and temperature readings, along with indicators for reading stability, battery percentage, and calibration instructions.

Features at-a-glance

Waterproof - The HI99151 is a waterproof meter rated IP67 for immersion in up to one meter of water for 30 minutes.
Automatic Calibration - One or two-point calibration is automatic to two selectable buffer sets.
Automatic Temperature Compensation – An integrated temperature sensor allows for automatic temperature compensation of pH measurements.
Multi-Level LCD Display - The split-level LCD displays both pH and temperature readings, along with indicators for reading stability, battery percentage, and calibration instructions.
On-Screen Tutorial - Clear tutorial messages and directions are available on-screen to quickly and easily guide users through setup and calibration.
Battery Error Prevention System - The meter will automatically shut off if there isn’t enough power to obtain an accurate measurement.
Battery Life Indicator - The battery percent level is displayed at start up alerting the user to the remaining battery power that is available.

pH Range - -2.00 to 16.00 pH
pH Resolution - 0.01 pH
pH Accuracy ±0.02 pH
pH Calibration automatic, at one or two points with two sets of buffers (standard 4.01, 7.01,10.01 or NIST 4.01, 6.86, 9.18)
Temperature Range -5.0 to 105.0°C / 23.0 to 221.0°F
Temperature Resolution 0.1°C / 0.1°F
Temperature Accuracy ±0.5°C (up to 60°C); ±1.0°C (outside) / ±1°F (up to 140°F); ±2.0°F (outside)
Temperature Compensation automatic from -5.0 to 105.0ºC (23 to 221ºF)
Electrode/Probe FC214D pre-amplified pH probe with internal temperature sensor, DIN connector and 1 m (3.3’) cable (included)
Battery Type/Life 1.5V (3) AAA / approximately 1200 hours of continuous use; auto-off after 8 minutes of non-use
Environment -5 to 50°C (23 to 122°F); RH max 100%
Dimensions 152 x 58 x 30 mm (6.0 x 2.3 x 1.2”)
Weight 205 g (7.2 oz.)
UNSPSC Code: 41115603

Download(s) Available: HI99151 Datasheet
Download(s) Available: HI99151 Manual