Extech PH90 Waterproof pH Meter with Temperature Compensation

• Extech PH90 Waterproof pH Meter for Liquids Semi-Solids Solids
• Tough and replaceable flat surface pH electrodes
• Simultaneously displays pH and temperature
• Recognizes buffer solutions with 2 or 3 point calibration (order pH buffers separately)
• PTS (percent of slope) feature lets you know when it is time to replace your electrodes (below 70% or above 130%)
• Automatically compensates temperature
• Auto power off, Data hold, Min/Max, and low battery indication
• Waterproof design that floats in water and protects the meter in wet environments (IP57)
• Includes: Flat surface pH electrode, protective sensor cap, and two 3V CR-2032 button batteries

Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.