{"product_id":"portable-ph-ec-tds-temperature-meter-with-cal-checktm-hi9813-61","title":"Portable pH\/EC\/TDS\/Temperature Meter with CAL Check™ - HI9813-61","description":"\u003cdiv style=\"margin: 0 0 48px;\"\u003e\n\u003cp\u003eThe HI9813-61 portable meter features a large LCD which displays either pH, EC, TDS or temperature readings along with tutorial instructions. The pH readings are displayed with a 0.1 resolution and an accuracy of +\/-0.1 pH while the EC and TDS readings are displayed with a 0.01 mS\/cm and 1 ppm (mg\/L) resolution and 2% full-scale accuracy. The EC range of the HI9813-61 is from 0.00 to 4.00 mS\/cm and TDS is from 0 to 1999 ppm. The temperature correction coefficient (β) is fixed at 2 %\/oC and allows for automatic temperature compensated measurements of EC and TDS. The HI9813-61 is a basic pH\/EC\/TDS meter that is calibrated manually to a single point with the use of two trimmers. pH is calibrated to pH 7.01 while EC\/TDS is calibrated to either 1.41 mS\/cm (1413 µS\/cm) or 1500 ppm. The LCD screen has battery life indicator as well as on-screen tutorial messages. The supplied HI1285-6 probe is a polypropylene body, amplified pH electrode with a built-in EC\/TDS and temperature sensors. The amplifier for the pH electrode prevents interference from humidity and electrical noise from common sources including from motors, ballasts or pumps. The HI9813-61 is a versatile meter for the agriculture, greenhouse and hydroponics industries.\u003c\/p\u003e\n\u003cp\u003eThe HI9813-61 meter also offers the CAL Check\u003csup\u003e™\u003c\/sup\u003e feature that alerts the user to a problem with a pH electrode. This feature is important for customers that calibrate only to pH 7.0; if there is a fracture on the pH glass of the electrode, the pH meter will always display pH 7.0 regardless of the solution being measured. This can be disastrous for the person that calibrates at pH 7.0 and takes readings of samples with an expected pH of 7.0. The user will never be aware that there is a problem with the electrode. This can result in inaccurate pH measurements, which for a greenhouse can affect the growth of the plants. Placing the HI1285-6 pH\/EC electrode in the HI50021 CAL Check\u003csup\u003e™\u003c\/sup\u003e solution helps users determine if the probe needs to be calibrated, cleaned or replaced. When the probe is placed in solution the user presses the “Check” key. The meter runs CAL Check\u003csup\u003e™\u003c\/sup\u003e diagnostics and will display either “Probe is OK” or “Clean Probe and Calibrate”. If the reading is around pH 4.0 when the probe is placed in the solution then the probe is broken and needs to be replaced.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 24px 48px; margin: 0 0 48px;\"\u003e\n\u003cdiv style=\"flex: 1 1 260px; max-width: 440px; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/Hanna-HI9813-61-Portable-pH-EC-TDS-Meter-200x300.jpg\" alt=\"Hanna HI9813-61 Portable pH\/EC\/TDS Meter\" width=\"200\" height=\"300\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: 0 auto;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 340px; min-width: 0;\"\u003e\n\u003cp\u003e\u003cstrong\u003eHI1285-6 polypropylene body amplified pH electrode with built-in EC\/TDS and temperature sensors\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe HI9813-61 is supplied with a polypropylene body pH\/EC\/TDS\/temperature probe. The pH, EC, TDS, and temperature sensor are housed in a single body that connects to the meter with a DIN connector.\u003c\/p\u003e\n\u003ch5\u003eAmplified pH electrode\u003c\/h5\u003e\n\u003cp\u003eThe pH electrode circuit has a built-in amplifier that  will reduce the effects of electrical noise on the high impedance pH measurement. Examples of sources of electrical noise include motors, ballasts, and pumps which are common in greenhouses.\u003c\/p\u003e\n\u003ch5\u003eAmperometric EC\/TDS sensor\u003c\/h5\u003e\n\u003cp\u003eThe EC\/TDS readings are performed by an amperometric sensor. An alternating voltage is applied to the sensor and the amount of current that passes between the two stainless steel pins is dependent upon the amount of salts (fertilizer) present. A greater amount of salt present results in an increase in conductance.\u003c\/p\u003e\n\u003ch5\u003ePolypropylene body\u003c\/h5\u003e\n\u003cp\u003eThe polypropylene body houses all the sensors in a single body design and is durable. The probe is gel filled for maintenance free operation. It does not have to be refilled periodically.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3 sensors in a single probe\u003c\/li\u003e\n\u003cli\u003ePre-amplified pH electrode for resistance to electrical noise\u003c\/li\u003e\n\u003cli\u003eGel filled maintenance free pH electrode\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFeatures at-a-glance\u003c\/h2\u003e\n\u003ch5\u003eWater Resistant\u003c\/h5\u003e\n\u003ch5\u003eCAL Check\u003csup\u003e™\u003c\/sup\u003e\n\u003c\/h5\u003e\n\u003ch5\u003eVariable EC to TDS conversion factor\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eFactor automatically adjusts from 0.56 to 0.78 based on actual EC readings\u003c\/li\u003e\n\u003cli\u003eFactor based on 442 curve for natural water\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAutomatic Temperature Compensation\u003c\/h5\u003e\n\u003cul\u003e\u003cli\u003eAll readings are compensated for variations in temperature\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch5\u003eLow Battery Indicator\u003c\/h5\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eHI9813-61\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eName\u003c\/td\u003e\n\u003ctd\u003ePortable pH\/EC\/TDS\/Temperature Meter with CAL Check™ - HI9813-61\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0.0 to 14.0 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Resolution\u003c\/td\u003e\n\u003ctd\u003e0.01 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Calibration\u003c\/td\u003e\n\u003ctd\u003emanual, 1-point through offset trimmer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEC Range\u003c\/td\u003e\n\u003ctd\u003e0.00 to 4.00 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEC Resolution\u003c\/td\u003e\n\u003ctd\u003e0.01 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEC Accuracy\u003c\/td\u003e\n\u003ctd\u003e±2% F.S.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEC Calibration\u003c\/td\u003e\n\u003ctd\u003emanual, 1-point through slope trimmer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Range\u003c\/td\u003e\n\u003ctd\u003e0 to 1999 ppm (mg\/L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Resolution\u003c\/td\u003e\n\u003ctd\u003e1 ppm (mg\/L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Calibration\u003c\/td\u003e\n\u003ctd\u003emanual, 1-point through slope trimmer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Accuracy\u003c\/td\u003e\n\u003ctd\u003e±2% F.S.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEC\/TDS Temperature Compensation\u003c\/td\u003e\n\u003ctd\u003eautomatic from 0 to 50°C (32 to 122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Correction Coefficient\u003c\/td\u003e\n\u003ctd\u003eβ=2%\/°C typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEC to TDS Conversion Factor\u003c\/td\u003e\n\u003ctd\u003evariable based on reading from 0.56 to 0.72 according to the TDS 442 curve for natural water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0.0 to 60.0°C \/ 32.0 to 140.0°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.5°C \/±1°F\/td\u0026gt;\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMulti-parameter Probe\u003c\/td\u003e\n\u003ctd\u003eHI 1285-6 combination, amplified pH\/EC\/TDS\/temperature probe with Cal-Check feature, built-in temperature sensor, 8-pin DIN connector and 1 m (3.3') cable\/td\u0026gt;\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type\/Life\u003c\/td\u003e\n\u003ctd\u003e9V \/ approximately 150 hours of continuous use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F); RH max 100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e145 x 80 x 36 mm (5.7 x 3.1 x 1.4”)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e230 g (8.1 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOrdering Info\u003c\/h3\u003e\u003cp\u003eHI9813-61 is supplied with HI1285-6 pH\/EC\/TDS\/°C probe with Cal-CheckTM, HI70007 pH 7.01 buffer solution sachet (1), HI70442 1500 ppm calibration solution sachet (1), HI70031 1413 µS\/cm calibration solution sachet (1), HI700661 electrode cleaning solution sachets (2), HI50021 calibration check solution sachets (2), 9V battery, instructions and rugged carrying case.\u003c\/p\u003e\u003ch3\u003eManuals\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/manuals.hannainst.com\/vi?vv=1\u0026amp;vc=1\u0026amp;vl=1\u0026amp;ic=5\u0026amp;ip=1\u0026amp;id=7667503\u0026amp;UrlParam1=HI3812\" target=\"_blank\" rel=\"noopener\"\u003ePortable pH\/EC\/TDS\/Temperature Meter with CAL Check™ - HI9813-61\u003c\/a\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":67871457837425,"sku":"HI9813-61","price":31299.75,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/Hanna-HI9813-61-Portable-pH-EC-TDS-Meter-2-scaled.jpg?v=1792646948","url":"https:\/\/hannainst.in\/products\/portable-ph-ec-tds-temperature-meter-with-cal-checktm-hi9813-61","provider":"hanna","version":"1.0","type":"link"}