Apera Instruments AI221 pH Pen Tester Kit Suitable for Test Tube pH Testing

Features:

• Easy SINGLE-Button Operation, Smallest Pen-Style design with a replaceable probe (good for test tube measurements)
• AUTO Calibration with auto buffer recognition; Auto Temperature Compensation (ATC) ensures accuracy in variant temperatures 0-60°C (32-140°F)
• COMPLETE KIT with READY-TO-USE calibration solution, KCl storage solution, and batteries in a portable carrying case
• Intelligent functions: automatic power-off, low battery alarm, and pH probe invalidation reminder
• AUTO RECOGNITION and REMINDER of stable values improves consistency, saving you the trouble of guessing when to manually hold measurement
• The Apera Instruments SX610 pH Pen Tester is featured with reliable measuring performance with a single-button operation in a slim body. A cost-effective choice for your regular pH testing, including hydroponics, water treatment, education, pools& spas, and etc. The pH probe is replaceable and suitable for test tube measurements, which is especially good for educational use.
• Easy Auto Calibration (1 point: 7.00 pH) with buffer recognition and 0 to 60°C(32-140°F) Auto Temperature Compensation (ATC), ±0.1 pH/1.0°C accuracy with 0 to 14.0 pH measuring range. Intelligent functions: automatic power-off, low battery alarm, pH probe invalidation reminder (remind you to replace the probe for better performance).
• The SX610 pH Pen Tester/Meter comes with a complete kit of premixed calibration solutions (7.00 pH), storage solutions (3M KCL), CR2032 lithium batteries all in a portable carrying case. IP57 waterproof and dustproof floats on water, so you don't have to worry if it falls into the water by accident.