HM DIGITAL AP-1 AQUA PRO TDS / TEMP ATC TESTER (1)

Main Features:

• Measures Total Dissolved Solids (TDS) and temperature.
• Automatic Temperature Compensation (ATC).
• Resolution: 1 ppm.
• Water-resistant housing.
• Digital Calibration (push button).
• Auto-off function, data-hold function, and low-battery indicator.
• Large and easy to read LCD screen display which includes a simultaneous temperature reading.
• Factory calibrated with a 342 ppm NaCl solution and can be re-calibrated with digital calibration using the push buttons, rather than a screwdriver.