HI 8424 portable pH/ORP meter/thermometer (pH/ORP/T)

HI 8424 Handheld instrument with remote (replaceable) electrode for measuring pH, ORP and temperature in water and solutions to monitor water quality in water treatment processes, environmental studies, swimming pools, etc. With automatic pH calibration and thermocompensation.
 
Calibration is automatic on one or two points with three buffer values (pH 4.01, pH 7.01 and pH 10.01). Once the instrument has been calibrated, the buffer values used during the calibration process are displayed on the LCD screen.
 
Specifications
 
Range
pH -2.00 to 16.00
ORP ±699.9 mV; ±1999 mV
Temperature -20.0 to 120.0°C
Resolution
pH 0.01 pH
ORP 0.1 mV; 1 mV
temperature 0.1°C
Error
pH ±0.01 pH
ORP ±0.2 mV; ±1 mV
temperature ±0.4°C
Ph calibration is automatic, 1 or 2 points (4.01, 7.01, 10.01)
Temperature compensation automatic, -20 to 120°C, or manual without temperature sensor
pH offset ±1 pH
pH electrode HI 1230B
Temperature HI 7662-T stainless steel temperature sensor
Input impedance 10^12 Ohm
Battery 9V
Battery life approximately 150 hours of continuous use; automatically turns off after 20 minutes of non-use
Usage Condition
temperature 0 : 50°C
humidity up to 100%
Dimensions 164 x 76 x 45mm
Weight 180 g
Supplied with HI1230B pH electrode, HI7662 temperature probe, HI70004 pH 4.01 buffer solution sachet, HI70007 pH 7.01 buffer solution sachet, HI700601 (2) electrode cleaning solution sachet, battery, protective case and instructions.

Read together with it:

  • Innovations in broiler feeding: savings and bird health
    The use of antibiotics in poultry farming remains a pressing issue. Long-term use of these drugs leads to the development of resistance in pathogenic bacteria and negatively impacts beneficial intestinal microflora, weakening the birds' immune system . Research shows that adding probiotics, zeolite, and inulin to broiler diets can effectively replace antibiotics . Probiotics restore normal intesti...
  • Blaming cows was a mistake: meadows absorb more gases than cattle emit.
    Cows have become a symbol of controversy, as debates about their environmental impact, particularly regarding methane emissions, have generated headlines, political decisions, and criticism. But while many study the animals themselves, a group of researchers decided to examine the soil. At the University of Nebraska-Lincoln, a team of researchers led by Professor Galen Erickson conducted a study t...
  • WHO: Almost 40% of cancer cases can be prevented 
    Photo: Reuters , February 4, Minsk . Nearly 40% of cancer cases worldwide are preventable, according to a new global analysis by the World Health Organization and the International Agency for Research on Cancer, published on World Cancer Day (February 4), as reported on the UN News Center website. The study's findings are based on data from 185 countries on 36 types of cancer. The impact of 3........
  • Avian influenza in cattle in the Netherlands
    How it all began A cow screening on the farm was initiated after a cat living on the property was confirmed to be infected with the avian influenza virus . This raised concerns that the virus could have spread to other animals, including cows. The Dutch Food and Consumer Product Safety Authority (NVWA) decided to conduct testing, collecting milk samples from 2......
  • Europe's first outbreak of bird flu among cows has sparked alarm in Galicia.
    Официальное подтверждение первого случая птичьего гриппа у крупного рогатого скота на территории Европы вызвало тревогу в системах здравоохранения и представляет собой особенно серьезную потенциальную опасность для Галисии, учитывая зависимость сельских районов страны от молочного сектора. Министерство сельского хозяйства Нидерландов сообщило об обнаружении антител к вирусу H5N1 у молочной коровы ...
  • A cattle genotyping program is being implemented in the Yaroslavl region.
    In 2025 , molecular genetic testing of approximately 8,000 Yaroslavl and Holstein cattle was conducted as part of the program. "Such studies allow us to accurately confirm the animals' origins, identify genetic risks , and determine the breeding value of the herd. As a result, we are creating a more productive, disease-resistant herd, improving milk quality and the competitiveness of Yaroslavl liv...
  • Pork was exported from the Pskov region to the Philippines for the first time.
    A Pskov meat-processing plant delivered 26.6 tons of frozen bone-in pork belly with skin. During the veterinary paperwork, inspectors verified that the product fully complied with the importing country's requirements. The batch underwent all necessary laboratory testing at the Northwestern branch of the All-Russian Research Institute of Animal Husbandry. This makes the Philippines the tenth countr...
  • "The work of a scientist is at the heart of everything." Why BSUT focuses on science 
    Alexander Akulich, Vice-Rector for Research at BSUT, Doctor of Engineering Sciences, Professor, and Honored Inventor of the Republic of Belarus. The Belarusian State University of Food and Chemical Technologies (BSUT) is a unique university in Belarus that not only trains highly qualified and sought-after specialists in the food and processing industry but also helps ensure Belarus's food security...
  • Violations of microbiological standards were found in semi-finished meat products from a Primorsky producer.
    Tests conducted on January 21 of this year revealed that coliform bacteria were detected in potato dumplings and vareniki, with bacterial counts exceeding regulatory limits by four to five times. These tests were part of the production and laboratory monitoring. The results were entered into the Vesta automated system and communicated to the customer. It is noteworthy that similar violations were ...