Hanna Direct Soil Measurement pH Portable Meter - HI99121

Hanna HI99121 Portable Direct Soil pH and Temperature Meter is an advanced, user-friendly instrument ideal for soil testing in agricultural, environmental, and laboratory applications. Designed with a rugged, waterproof IP67 housing, the HI99121 is equipped with a direct soil pre-amplified HI12923 pH/temperature probe featuring a durable, conical tip for direct insertion into moist soils, ensuring stable and noise-immune readings even in humid conditions. For compact or hardened soils, a supplied plastic auger assists in sample preparation. The meter supports automatic two-point calibration with multiple buffer choices, and an automatic temperature compensation system provides accurate results over a range of environments from -5.0 to 105.0°C (23 to 221°F).

• Measures a broad pH range (-2.00 to 16.00), suitable for both direct measurement and prepared soil slurries.
• Temperature readings include an accuracy of ±0.5°C and 0.1°C resolution, with an internal sensor built into the probe.
• Convenient mV measurement range of ±825 mV for enhanced pH diagnostics.
• Features CAL Check to display probe condition and ensure trustworthy data.
• Battery life of approximately 1400 hours using 3 x 1.5V AAA batteries and selectable auto-shutoff to preserve battery.
• For field use: waterproof case, lightweight (196 g), and robust design for industrial or environmental testing sites.
• Applications include agricultural soil testing, environmental field research, academic laboratory work, and horticultural monitoring.

The complete kit includes the HI99121 meter, HI12923 glass body combined pH electrode with built-in temperature sensor, plastic soil auger, and carrying case. Browse more laboratory pH meters  and electrochemical portable meters on EnvMart.