{"product_id":"hanna-hi98319-marine-salinity-and-temperature-tester","title":"Hanna HI98319 Marine Salinity and Temperature Tester","description":"\u003ch2\u003eHanna HI98319 Marine Salinity and Temperature Tester\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHanna HI98319 Marine Salinity and Temperature Tester\u003c\/strong\u003e is a pocket-sized digital meter that measures both the salinity and the temperature of natural and artificial seawater in aquariums. It is built for South African reef keepers and marine fishkeepers who want a quick, clear digital reading instead of squinting at a refractometer scale. Readings appear within seconds on an easy-to-read LCD screen.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital salinity testing by conductivity:\u003c\/strong\u003e the tester measures electrical conductivity (EC) to work out the salinity of natural or artificial seawater. This means there is no fuzzy blue line to interpret, which many hobbyists find hard to see on traditional refractometers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResults in seconds:\u003c\/strong\u003e salinity and temperature are measured together and shown on the LCD within moments of dipping the probe.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic temperature compensation:\u003c\/strong\u003e the tester uses its own temperature reading to correct the salinity value before displaying it. Compensation works automatically from 5 to 50.0°C (41 to 122°F), which is useful in South Africa's warm summers and cooler winters, when tank temperatures can drift.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree salinity units at the press of a button:\u003c\/strong\u003e you can cycle between the three most common salinity measurements:\n\u003cul\u003e\n\u003cli\u003eppt (parts per thousand)\u003c\/li\u003e\n\u003cli\u003ePSU (practical salinity units)\u003c\/li\u003e\n\u003cli\u003eS.G. (specific gravity)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraphite sensors:\u003c\/strong\u003e these reduce polarisation effects, helping readings stay consistent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast, accurate temperature readings:\u003c\/strong\u003e the tester doubles as a handy check on your heater or chiller performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable auto-off:\u003c\/strong\u003e the meter switches itself off to prolong battery life, giving approximately 100 hours of continuous use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePocket-sized:\u003c\/strong\u003e it is easy to carry between tanks, to a fish club meeting or to your local aquarium shop when checking freshly mixed saltwater.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration solutions included:\u003c\/strong\u003e 35 ppt calibration standard sachets come in the box so you can keep readings correct from day one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA more stable environment for your livestock:\u003c\/strong\u003e keeping salinity steady in your reef tank lets fish and corals put their energy into growing, rather than constantly adjusting to salinity swings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow to Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCalibrate the tester using one of the supplied 35 ppt calibration standard sachets. The meter performs an automatic single-point calibration at 35.00 ppt. Once calibrated, place the sensor in a sample of your aquarium or freshly mixed seawater. The HI98319 measures conductivity and temperature, applies automatic temperature compensation, and displays the result on the LCD within seconds. Use the unit button to switch between ppt, PSU and S.G. to match the scale you or your salt mix instructions use. Refer to the included instruction manual for full operating and calibration steps.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuitable For\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTesting salinity in any saltwater aquarium, including reef tanks, fish-only marine systems and coral setups.\u003c\/li\u003e\n\u003cli\u003eMeasuring natural seawater as well as artificial seawater mixed from synthetic sea salt.\u003c\/li\u003e\n\u003cli\u003eChecking new saltwater before water changes, and monitoring top-off and evaporation effects.\u003c\/li\u003e\n\u003cli\u003eHobbyists who find refractometers difficult to read or who simply want a faster, simpler testing routine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement method:\u003c\/strong\u003e electrical conductivity (EC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalinity range:\u003c\/strong\u003e 0.0 to 70.0 ppt (g\/L); 0.0 to 70.0 PSU; 1.000 to 1.041 S.G.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalinity resolution:\u003c\/strong\u003e 0.1 ppt (g\/L); 0.1 PSU; 0.001 S.G.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalinity accuracy (at 25°C\/77°F):\u003c\/strong\u003e ±1 ppt for 0.0 to 40.0 ppt (±2 ppt for readings over 40.0 ppt); ±1 PSU for 0.0 to 40.0 PSU (±2 PSU for readings over 40.0 PSU); ±0.001 S.G.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e 0.0 to 50.0°C (32.0 to 122.0°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature resolution:\u003c\/strong\u003e 0.1°C (0.1°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature accuracy (at 25°C\/77°F):\u003c\/strong\u003e ±0.5°C (±1°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalinity calibration:\u003c\/strong\u003e automatic, single point at 35.00 ppt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature compensation:\u003c\/strong\u003e automatic from 5 to 50.0°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensors:\u003c\/strong\u003e graphite, to reduce polarisation effects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e easy-to-read LCD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e CR2032\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery life:\u003c\/strong\u003e approximately 100 hours of continuous use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-off:\u003c\/strong\u003e selectable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating environment:\u003c\/strong\u003e 0 to 50°C (32 to 122°F), RH max 100%\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x HI98319 Marine Salinity Tester\u003c\/li\u003e\n\u003cli\u003e1 x CR2032 battery (installed)\u003c\/li\u003e\n\u003cli\u003e1 x storage case\u003c\/li\u003e\n\u003cli\u003e4 x 35 ppt calibration standard sachets\u003c\/li\u003e\n\u003cli\u003e1 x instruction manual\u003c\/li\u003e\n\u003cli\u003e1 x quality certificate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease take time to read about this tester and make sure you are familiar with it before purchasing. Because of the unique nature of this product, returns cannot be accepted.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow is this different from using a refractometer?\u003c\/strong\u003e\u003cbr\u003e\nA refractometer requires you to read where a blue line falls on a scale, and many people find that line fuzzy. The HI98319 measures electrical conductivity and shows a temperature-compensated digital value on an LCD within seconds, so there is nothing to interpret.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhich salinity units does it display?\u003c\/strong\u003e\u003cbr\u003e\nYou can cycle between ppt (0.0 to 70.0, 0.1 resolution), PSU (0.0 to 70.0, 0.1 resolution) and specific gravity (1.000 to 1.041, 0.001 resolution).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow do I calibrate it, and are calibration solutions included?\u003c\/strong\u003e\u003cbr\u003e\nCalibration is an automatic single-point process at 35.00 ppt. Four 35 ppt calibration standard sachets are supplied in the box.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes tank temperature affect the salinity reading?\u003c\/strong\u003e\u003cbr\u003e\nThe tester automatically compensates for temperature from 5 to 50.0°C using its own built-in temperature reading. This helps keep results comparable whether your tank runs warm in a Highveld or Durban summer or cooler in winter. Stated salinity accuracy is measured at 25°C\/77°F.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat battery does it use, and how long does it last?\u003c\/strong\u003e\u003cbr\u003e\nIt runs on a CR2032 battery, which comes already installed. The battery lasts approximately 100 hours of continuous use, and the selectable auto-off feature helps stretch that further.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I return the tester if I change my mind?\u003c\/strong\u003e\u003cbr\u003e\nNo. Because of the unique nature of this product, returns are not accepted, so please familiarise yourself with its features and specifications before ordering.\u003c\/p\u003e","brand":"HANNA","offers":[{"title":"Default Title","offer_id":47423695814964,"sku":"16157","price":4315.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0151\/9016\/3510\/products\/hanna-hi98319-marine-salinity-and-temperature-tester-aquarium-water-quality-monitor.jpg?v=1743694216","url":"https:\/\/jungleaquatics.com\/products\/hanna-hi98319-marine-salinity-and-temperature-tester","provider":"Jungle Aquatics Pet Store","version":"1.0","type":"link"}