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Package Size: 12.2 x 9.5 x 3.5 inches
The HI 99121N is a portable, waterproof pH and temperature meter that comes with the HI 1292D pH electrode for measuring diluted soil samples or soil directly, and features a large LCD screen, automatic temperature compensation (ATC), a hold function to freeze and record results, and a battery error protection system (BEPS) to reduce inaccurate readings. The meter comes with the HI 1292D electrode, which has a sturdy conical tip that can be directly inserted in soft soil, and the HI 721319 plastic soil auger for perforating harder soil.
The meter features on-screen tutorial messages to assist with calibration, which is automatic at one or two points. The HI 99121N comes with (3) AAA 1.5 V batteries that provide approximately 1200 hours of continuous use (an auto off function shuts the meter off after 8 minutes of non-use). A 100 mL beaker and starter buffer, cleaning and soil preparation sachets are included.
pH range is -2.00 to 16.00 (+ or - 0.02pH) with a resolution of 0.01 pH. Temperature range is - 5.0 to 105.0 degrees C (23.0 to 221.0 degrees F) + or - 0.5 degrees C (up to 60 degrees C), + or - 1 degree C (outside); + or - 1.0 degree F (up to 140 degrees F), + or - 2 degrees F (outside), with a resolution of 0.1 degrees C or F. Dimensions are 152 x 58 x 30 mm (6.0 x 2.3 x 1.2”), with weight 205g (7.2 oz.).
pH testers measure the acidity or alkalinity of a substance and are commonly used by researchers, manufacturers, and hobbyists.
Hanna Instruments manufactures a wide variety of analytical instrumentation, including pH meters, multi-parameter meters, electrodes, chemical reagents and buffer solutions. Founded in 1978, Hanna is headquartered in Woonsocket, RI, with subsidiaries located in 32 countries. Hanna Instruments holds many firsts in the field of analytical instrumentation, including the world’s first pH electrode with a built in temperature sensor, electronic pocket-sized pH tester, and replaceable electrode pH pocket tester. To assure the quality of its products, Hanna is a vertically integrated manufacturer and does not subcontract any part of its manufacturing.
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