{"title":"HM Digital Meters","description":"","products":[{"product_id":"hm-digital-ph-stor-ph-electrode-storage-solution","title":"HM Digital PH-Stor pH Electrode Storage Solution","description":"For use with HM Digital's PH-200 and PH-80 (as well as other brands of pH meters). Always make sure your sensor is kept in an electrode storage solution. If dry, refill the pH meter cap with the PH-STOR storage solution. The sponge should be moist (not soaking wet).  ","brand":"HM Digital Meters","offers":[{"title":"Default Title","offer_id":48465376936191,"sku":"HMOPSTOR","price":10.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0072\/8324\/5092\/files\/hf_20260721_145213_5eec9665-cc72-4c8d-bac9-5def662b182f.png?v=1784929202"},{"product_id":"hm-digital-meters-ph-80-ph-temperature-meter","title":"HM Digital Meters PH-80 pH\/Temperature Meter","description":"\u003cspan style=\"color: rgb(99, 99, 99); font-family: opensans, Arial; font-size: 16px;\"\u003eEconomically priced, reliable pH meter that is ideal for testing applications such as hydroponics \u0026amp; gardening, pools \u0026amp; spas, aquariums \u0026amp; reef tanks, water ionizers, drinking water and more.\u003c\/span\u003e\u003cbr\u003e\r\nResolution: pH 0.1 pH, 0.00–14.0 pH. Accurate to +\/-0.1 pH. Hold button and auto shut-off. Automatic calibration: Auto-ranging to 4, 7 or 10 pH. Very reliable and long lasting. Low battery indicator. Clear cap to notice moisture (or lack of) on probe. Glass encased reference electrode helps retain moisture. Batteries included.Resolution: pH 0.1 pH, 0.00–14.0 pH. Accurate to +\/-0.1 pH. Hold button and auto shut-off. Automatic calibration: Auto-ranging to 4, 7 or 10 pH. Very reliable and long lasting. Low battery indicator. Clear cap to notice moisture (or lack of) on probe. Glass encased reference electrode helps retain moisture. Batteries included.","brand":"HM Digital Meters","offers":[{"title":"Default Title","offer_id":48465440014591,"sku":"HMDPHM80","price":55.84,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0072\/8324\/5092\/files\/hf_20260721_145021_ab05d2f5-37b6-4172-933a-9c7830e28c29.png?v=1784929205"},{"product_id":"hm-digital-meters-com-80-ec-tds-temp-waterproof-hydro-tester","title":"HM Digital Meters COM-80 EC\/TDS\/Temp Waterproof Hydro Tester","description":"\u003ch2 style='box-sizing: border-box; margin: 30px 0px 10px; padding: 10px 0px 5px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 27px; line-height: 1em; font-family: open_sanslight, \"DejaVu Sans\", Verdana, Arial, sans-serif; vertical-align: baseline; color: rgb(85, 85, 85); zoom: 1;'\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eThe COM-80 is an economically priced, reliable EC\/TDS meter that is ideal for testing applications such as hydroponics \u0026amp; gardening, pools \u0026amp; spas, aquariums \u0026amp; reef tanks, water ionizers, drinking water and more.\u003c\/span\u003e\u003c\/h2\u003e\r\n\r\n\u003cp style='box-sizing: border-box; margin: 0in 0in 10pt; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 16px; line-height: normal; font-family: open_sansregular, \"DejaVu Sans\", Verdana, Arial, sans-serif; vertical-align: baseline; zoom: 1; color: rgb(85, 85, 85);'\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eMeasures electrical conductivity (EC), total dissolved solids (TDS).  Excellent for hydroponic nutrient testing.\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp style='box-sizing: border-box; margin: 0in 0in 10pt; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 16px; line-height: normal; font-family: open_sansregular, \"DejaVu Sans\", Verdana, Arial, sans-serif; vertical-align: baseline; zoom: 1; color: rgb(85, 85, 85);'\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eFour scales: EC: µS, mS;  TDS: ppm, ppt  \u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp style='box-sizing: border-box; margin: 0in 0in 10pt; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 16px; line-height: normal; font-family: open_sansregular, \"DejaVu Sans\", Verdana, Arial, sans-serif; vertical-align: baseline; zoom: 1; color: rgb(85, 85, 85);'\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eAutomatic Temperature Compensation (ATC)\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp style='box-sizing: border-box; margin: 0in 0in 10pt; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 16px; line-height: normal; font-family: open_sansregular, \"DejaVu Sans\", Verdana, Arial, sans-serif; vertical-align: baseline; zoom: 1; color: rgb(85, 85, 85);'\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eWater resistant\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp style='box-sizing: border-box; margin: 0in 0in 10pt; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 16px; line-height: normal; font-family: open_sansregular, \"DejaVu Sans\", Verdana, Arial, sans-serif; vertical-align: baseline; zoom: 1; color: rgb(85, 85, 85);'\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eMeasurement Range: 0-9990 \u003cem style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline; zoom: 1;\"\u003eµ\u003c\/em\u003eS; 0-5000 ppm; 0-9.9 mS; 0-5.0 ppt \u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp style='box-sizing: border-box; margin: 0in 0in 10pt; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 16px; line-height: normal; font-family: open_sansregular, \"DejaVu Sans\", Verdana, Arial, sans-serif; vertical-align: baseline; zoom: 1; color: rgb(85, 85, 85);'\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eDigital Calibration (push button) to any point within the meter's range\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp style='box-sizing: border-box; margin: 0in 0in 10pt; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 16px; line-height: normal; font-family: open_sansregular, \"DejaVu Sans\", Verdana, Arial, sans-serif; vertical-align: baseline; zoom: 1; color: rgb(85, 85, 85);'\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eAuto-off function, data-hold function and low-battery indicator\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp style='box-sizing: border-box; margin: 0in 0in 10pt; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 16px; line-height: normal; font-family: open_sansregular, \"DejaVu Sans\", Verdana, Arial, sans-serif; vertical-align: baseline; zoom: 1; color: rgb(85, 85, 85);'\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eDisplay: large and easy-to-read LCD screen includes simultaneous temperature reading\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp style='box-sizing: border-box; margin: 0in 0in 10pt; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 16px; line-height: normal; font-family: open_sansregular, \"DejaVu Sans\", Verdana, Arial, sans-serif; vertical-align: baseline; zoom: 1; color: rgb(85, 85, 85);'\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eFactory Calibrated: The COM-80 meter is calibrated with a 1413 \u003cem style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline; zoom: 1;\"\u003eµ\u003c\/em\u003eS solution—can be recalibrated with digital calibration using the push buttons\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp style='box-sizing: border-box; margin: 0in 0in 10pt; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 16px; line-height: normal; font-family: open_sansregular, \"DejaVu Sans\", Verdana, Arial, sans-serif; vertical-align: baseline; zoom: 1; color: rgb(85, 85, 85);'\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eIncludes a protective cap and batteries.\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp style='box-sizing: border-box; margin: 0in 0in 10pt; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 16px; line-height: normal; font-family: open_sansregular, \"DejaVu Sans\", Verdana, Arial, sans-serif; vertical-align: baseline; zoom: 1; color: rgb(85, 85, 85);'\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp style='box-sizing: border-box; margin: 0in 0in 10pt; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 16px; line-height: normal; font-family: open_sansregular, \"DejaVu Sans\", Verdana, Arial, sans-serif; vertical-align: baseline; zoom: 1; color: rgb(85, 85, 85);'\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eSPECIFICATIONS\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp style='box-sizing: border-box; margin: 0px 0px 15px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 16px; line-height: inherit; font-family: open_sansregular, \"DejaVu Sans\", Verdana, Arial, sans-serif; vertical-align: baseline; zoom: 1; color: rgb(85, 85, 85);'\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eEC Range: \u003c\/span\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003e0-9990 \u003cem style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline; zoom: 1;\"\u003eµ\u003c\/em\u003eS; 0-9.9 mS  \u003cbr style=\"box-sizing: border-box; zoom: 1;\"\u003e\r\n\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eTDS Range:\u003c\/span\u003e 0-5000 ppm (mg\/L); 0-5.0 ppt  \u003cbr style=\"box-sizing: border-box; zoom: 1;\"\u003e\r\n\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eTemperature Range:\u003c\/span\u003e 1-80°C\/33-176°F \u003cbr style=\"box-sizing: border-box; zoom: 1;\"\u003e\r\n\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eResolution:\u003c\/span\u003e 1 \u003cem style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline; zoom: 1;\"\u003eµ\u003c\/em\u003eS\/ppm; 0.1 mS\/ppt   \u003cbr style=\"box-sizing: border-box; zoom: 1;\"\u003e\r\n\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003e     Temp. resolution:\u003c\/span\u003e 0.1°C\/F \u003cbr style=\"box-sizing: border-box; zoom: 1;\"\u003e\r\n\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eAccuracy:\u003c\/span\u003e +\/- 2% \u003cbr style=\"box-sizing: border-box; zoom: 1;\"\u003e\r\n\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eEC-to-TDS Conversion Factor:\u003c\/span\u003e NaCl (avg of 0.5) \u003cbr style=\"box-sizing: border-box; zoom: 1;\"\u003e\r\n\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eCalibration:\u003c\/span\u003e Digital calibration by push button \u003cbr style=\"box-sizing: border-box; zoom: 1;\"\u003e\r\n\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eProbe:\u003c\/span\u003e Fixed \u003cbr style=\"box-sizing: border-box; zoom: 1;\"\u003e\r\n\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eHousing:\u003c\/span\u003e Water resistant\u003cbr style=\"box-sizing: border-box; zoom: 1;\"\u003e\r\n\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003ePower source:\u003c\/span\u003e 3 x 1.5V button cell batteries (included)  (model LR44 or equivalent)\u003cbr style=\"box-sizing: border-box; zoom: 1;\"\u003e\r\n\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eDimensions:\u003c\/span\u003e 15.3 x 3.2 x 1.8 cm (6.0 x 1.3 x 0.7 inches) \u003cbr style=\"box-sizing: border-box; zoom: 1;\"\u003e\r\n\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; zoom: 1;\"\u003eWeight:\u003c\/span\u003e 53.9 g (1.9 oz)\u003c\/span\u003e\u003c\/p\u003e\r\n","brand":"HM Digital Meters","offers":[{"title":"Default Title","offer_id":48723211976959,"sku":"HMDCOM80","price":59.27,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0072\/8324\/5092\/files\/hf_20260721_144748_299f7379-20cf-4e82-a9ad-d75e1f0e93dc.png?v=1784929092"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0072\/8324\/5092\/collections\/HM_Digital_Meters.png?v=1780104678","url":"https:\/\/costaricahydroponics.com\/en\/collections\/hm-digital-meters.oembed","provider":"Pachamama Indoor Farming Culture","version":"1.0","type":"link"}