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The Apera Instruments SX625 Replacement Probe is the replacement probe for SX620 pH Pen Testers. This replacement probe is equipped with a glass bulb membrane and a built-in temperature sensor. It has a measurement range of 0 to 14.00 pH and 0 to 50°C (32-122°F). Its 10 mm diameter probe allows measurement in most test tubes, making it perfect for educational use and other common aqueous solution's pH measurement, such as hydroponics, aquaculture, pool & spas, water treatment, environmental monitoring, etc. CE-Certified and comes with a 6-month warranty.

      SX625 Replacement pH Probe for SX620 pH Pen

        • 0 - 14.00 pH, 0 - 50°C (32-122°F)
        • Slim probe in design (10 mm diameter), great for test tube ph measurement
        • Glass bulb membrane with built-in temperature sensor
        • Works well for 12-24 months under proper use and care
      • We warrant this electrode to be free from defects in material and workmanship and agree to repair or replace free of charge, at the option of APERA INSTRUMENTS, LLC, any malfunctioned or damaged product attributable to the responsibility of APERA INSTRUMENTS, LLC for a period of SIX MONTHS from the delivery.

        This limited warranty does NOT cover any issues due to:

        • Accidental damage
        • Improper use
        • Normal wear and tear
        • Transportation
        • Storage
        • Failure to follow the product instructions
        • Unauthorized maintenance, modifications, combination or use with any products, materials, processes, systems or other matter
        • Unauthorized repair
        • External causes such as accidents, abuse, or other actions or events beyond our reasonable control.
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