{"title":"Meters","description":"","products":[{"product_id":"hm-digital-com-100-deluxe-handheld-ec-tds-meter-mtr-ec-tds-c100","title":"HM Digital COM-100 Deluxe Handheld EC\/TDS Meter -MTR-EC\/TDS-C100","description":"\u003cp\u003eHM Digital COM-100 deluxe handheld EC\/TDS meter. Measures electrical conductivity and TDS with temperature compensation — the upgrade pick over a pocket meter for users who want EC readings (hydroponics, brewing) on top of TDS.\u003c\/p\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures: EC + TDS + temperature\u003c\/li\u003e\n\u003cli\u003eRange: 0–9999 µS (EC) \/ 0–9999 ppm (TDS)\u003c\/li\u003e\n\u003cli\u003eAuto temperature compensation\u003c\/li\u003e\n\u003cli\u003ePower: battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eQuestions about filters, production rates, or membranes? Visit our \u003ca href=\"\/pages\/know-your-filters\"\u003eKnow Your Filters\u003c\/a\u003e page or \u003ca href=\"\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","brand":"SpectraPure","offers":[{"title":"Default Title","offer_id":31968531775587,"sku":"38-0008","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0059\/1216\/6489\/products\/MTR-EC-TDS-C100-1.png?v=1777487891"},{"product_id":"hm-digital-dm-1-inline-dual-probe-tds-meter-mtr-tds-dm1","title":"HM Digital DM-1 Inline Dual Probe TDS Meter -MTR-TDS-DM1","description":"\u003cp\u003eHM Digital DM-1 inline dual-probe TDS meter. Measures feed-side and product-side TDS at the same time — the easiest way to spot a tired membrane or DI cartridge before it lets bad water through.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDual-probe — IN and OUT side readings in one display\u003c\/li\u003e\n  \u003cli\u003eCalculates rejection percentage automatically (if applicable model)\u003c\/li\u003e\n  \u003cli\u003eInline install — no test strips, no cup samples\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRange: 0–9990 ppm\u003c\/li\u003e\n  \u003cli\u003eAccuracy: ±2%\u003c\/li\u003e\n  \u003cli\u003ePower: battery\u003c\/li\u003e\n  \u003cli\u003eIncludes: meter, two probes, fittings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDeluxe version: \u003ca href=\"\/products\/hm-digital-dm-2-deluxe-inline-dual-probe-tds-meter-mtr-tds-dm2\"\u003eHM Digital DM-2 Deluxe\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003cli\u003e3-probe version: \u003ca href=\"\/products\/hm-digital-trm-1-inline-3-probe-tds-meter-with-0-25-quick-connect-fittings-mtr-tds-trm1-4\"\u003eHM Digital TRM-1\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eQuestions about filters, production rates, or membranes? Visit our \u003ca href=\"\/pages\/know-your-filters\"\u003eKnow Your Filters\u003c\/a\u003e page or \u003ca href=\"\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","brand":"SpectraPure","offers":[{"title":"Default Title","offer_id":31968534855779,"sku":"38-0024","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0059\/1216\/6489\/products\/MTR-TDS-DM1-1.png?v=1777488108"},{"product_id":"hm-digital-ph-200-deluxe-handheld-ph-meter-mtr-ph-ph200","title":"HM Digital pH 200 Deluxe Handheld pH Meter -MTR-PH-PH200","description":"\u003cp\u003eHM Digital pH 200 deluxe handheld pH meter. Lab-grade glass electrode, automatic temperature compensation, and a waterproof case — useful for reef tank husbandry, brewing water prep, hydroponics, and any spot where pH drift matters.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaceable glass electrode\u003c\/li\u003e\n  \u003cli\u003eAutomatic temperature compensation (ATC)\u003c\/li\u003e\n  \u003cli\u003e2-point calibration\u003c\/li\u003e\n  \u003cli\u003eWaterproof housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRange: 0.0–14.0 pH\u003c\/li\u003e\n  \u003cli\u003eResolution: 0.01 pH\u003c\/li\u003e\n  \u003cli\u003eAccuracy: ±0.02 pH\u003c\/li\u003e\n  \u003cli\u003ePower: battery\u003c\/li\u003e\n  \u003cli\u003eIncludes: meter, electrode, calibration buffers, case\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTDS meters: \u003ca href=\"\/products\/hm-digital-dm-1-inline-dual-probe-tds-meter-mtr-tds-dm1\"\u003eDM-1\u003c\/a\u003e · \u003ca href=\"\/products\/hm-digital-trm-1-inline-3-probe-tds-meter-with-0-25-quick-connect-fittings-mtr-tds-trm1-4\"\u003eTRM-1\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eQuestions about filters, production rates, or membranes? Visit our \u003ca href=\"\/pages\/know-your-filters\"\u003eKnow Your Filters\u003c\/a\u003e page or \u003ca href=\"\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","brand":"SpectraPure","offers":[{"title":"Default Title","offer_id":31968537280611,"sku":"38-0016","price":124.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0059\/1216\/6489\/products\/MTR-PH-PH200.png?v=1777488300"},{"product_id":"hm-digital-ph-80-handheld-ph-meter-mtr-ph-ph80","title":"HM Digital pH 80 Handheld pH Meter -MTR-PH-PH80","description":"\u003cp\u003eHM Digital pH 80 handheld pH meter. The budget pick in HM Digital's pH line — fine for routine reef-tank or brewing water checks where a glass-electrode lab pen is overkill.\u003c\/p\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRange: 0–14 pH\u003c\/li\u003e\n\u003cli\u003eResolution: 0.1 pH\u003c\/li\u003e\n\u003cli\u003ePower: battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eQuestions about filters, production rates, or membranes? Visit our \u003ca href=\"\/pages\/know-your-filters\"\u003eKnow Your Filters\u003c\/a\u003e page or \u003ca href=\"\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","brand":"SpectraPure","offers":[{"title":"Default Title","offer_id":31968537313379,"sku":"38-0017","price":78.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0059\/1216\/6489\/products\/MTR-PH-PH80.png?v=1777488303"},{"product_id":"hm-digital-tds-4-tm-pocket-size-tds-meter-mtr-tds-4tm","title":"HM Digital TDS-4 TM Pocket Size TDS Meter -MTR-TDS-4TM","description":"\u003cp\u003eHM Digital TDS-4 TM pocket-size TDS meter. Small, fast TDS reading for routine checks — drops in a pocket or a toolbox.\u003c\/p\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRange: 0–9990 ppm\u003c\/li\u003e\n\u003cli\u003eResolution: 1 ppm\u003c\/li\u003e\n\u003cli\u003ePower: battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eQuestions about filters, production rates, or membranes? Visit our \u003ca href=\"\/pages\/know-your-filters\"\u003eKnow Your Filters\u003c\/a\u003e page or \u003ca href=\"\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","brand":"SpectraPure","offers":[{"title":"Default Title","offer_id":31968537346147,"sku":"38-0023","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0059\/1216\/6489\/products\/MTR-TDS-4TM.png?v=1777488304"},{"product_id":"hm-digital-dm-2-deluxe-inline-dual-probe-tds-meter-mtr-tds-dm2","title":"HM Digital DM-2 Deluxe Inline Dual Probe TDS Meter -MTR-TDS-DM2","description":"\u003cp\u003eHM Digital DM-2 deluxe inline dual-probe TDS meter. Same dual-probe setup as the DM-1 plus auto-rejection percentage calculation and a temperature reading — drop-in upgrade for users who want a little more information from the same wiring.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDual-probe — IN and OUT side readings in one display\u003c\/li\u003e\n  \u003cli\u003eAuto rejection-percentage calculation\u003c\/li\u003e\n  \u003cli\u003eBuilt-in temperature compensation\u003c\/li\u003e\n  \u003cli\u003eHold function for catching peak readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRange: 0–9999 ppm\u003c\/li\u003e\n  \u003cli\u003eAccuracy: ±2%\u003c\/li\u003e\n  \u003cli\u003ePower: battery\u003c\/li\u003e\n  \u003cli\u003eIncludes: meter, two probes, fittings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBase version: \u003ca href=\"\/products\/hm-digital-dm-1-inline-dual-probe-tds-meter-mtr-tds-dm1\"\u003eHM Digital DM-1\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003cli\u003e3-probe version: \u003ca href=\"\/products\/hm-digital-trm-1-inline-3-probe-tds-meter-with-0-25-quick-connect-fittings-mtr-tds-trm1-4\"\u003eHM Digital TRM-1\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eQuestions about filters, production rates, or membranes? Visit our \u003ca href=\"\/pages\/know-your-filters\"\u003eKnow Your Filters\u003c\/a\u003e page or \u003ca href=\"\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","brand":"SpectraPure","offers":[{"title":"Default Title","offer_id":31968537378915,"sku":"38-0025","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0059\/1216\/6489\/products\/MTR-TDS-DM2.png?v=1777488308"},{"product_id":"hm-digital-tds-ez-handheld-tds-tester-mtr-tds-ez","title":"HM Digital TDS EZ Handheld TDS Tester -MTR-TDS-EZ","description":"\u003cp\u003eHM Digital TDS EZ handheld TDS tester. The simplest TDS meter HM Digital makes — one-button operation, fine for users who just need a quick TDS reading off the tap.\u003c\/p\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRange: 0–9990 ppm\u003c\/li\u003e\n\u003cli\u003ePower: battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eQuestions about filters, production rates, or membranes? Visit our \u003ca href=\"\/pages\/know-your-filters\"\u003eKnow Your Filters\u003c\/a\u003e page or \u003ca href=\"\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","brand":"SpectraPure","offers":[{"title":"Default Title","offer_id":31968537411683,"sku":"38-0026","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0059\/1216\/6489\/products\/MTR-TDS-EZ.png?v=1777488306"},{"product_id":"hm-digital-tds-3-handheld-tds-meter-0-9990-ppm-mtr-tds-tds3","title":"HM Digital TDS-3 Handheld TDS Meter - 0-9990 ppm -MTR-TDS-TDS3","description":"\u003cp\u003eHM Digital TDS-3 handheld TDS meter. The standard hobbyist pick — temperature-compensated, hold function, 0–9990 ppm range.\u003c\/p\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRange: 0–9990 ppm\u003c\/li\u003e\n\u003cli\u003eResolution: 1 ppm\u003c\/li\u003e\n\u003cli\u003eAuto temperature compensation\u003c\/li\u003e\n\u003cli\u003eHold function\u003c\/li\u003e\n\u003cli\u003ePower: battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eQuestions about filters, production rates, or membranes? Visit our \u003ca href=\"\/pages\/know-your-filters\"\u003eKnow Your Filters\u003c\/a\u003e page or \u003ca href=\"\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","brand":"SpectraPure","offers":[{"title":"Default Title","offer_id":31968537477219,"sku":"38-0028","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0059\/1216\/6489\/files\/tds3-main.png?v=1777488315"},{"product_id":"hm-digital-trm-1-inline-3-probe-tds-meter-with-0-25-quick-connect-fittings-mtr-tds-trm1-4","title":"HM Digital TRM-1 Inline 3 Probe TDS Meter with 0.25\" Quick-Connect Fittings -MTR-TDS-TRM1-4","description":"\u003cp\u003eHM Digital TRM-1 inline 3-probe TDS meter. Adds a third probe so you can watch feed, post-membrane, and post-DI all at once — the right tool for full RO-DI builds where you want to spot whether the membrane or the DI is the next thing to change.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e3 probes — feed, RO permeate, and DI output\u003c\/li\u003e\n  \u003cli\u003eToggles between readings with one button\u003c\/li\u003e\n  \u003cli\u003e1\/4\" quick-connect fittings included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRange: 0–9999 ppm\u003c\/li\u003e\n  \u003cli\u003eAccuracy: ±2%\u003c\/li\u003e\n  \u003cli\u003ePower: battery\u003c\/li\u003e\n  \u003cli\u003eIncludes: meter, three probes, 1\/4\" QC fittings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDual-probe: \u003ca href=\"\/products\/hm-digital-dm-1-inline-dual-probe-tds-meter-mtr-tds-dm1\"\u003eHM Digital DM-1\u003c\/a\u003e · \u003ca href=\"\/products\/hm-digital-dm-2-deluxe-inline-dual-probe-tds-meter-mtr-tds-dm2\"\u003eDM-2 Deluxe\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eQuestions about filters, production rates, or membranes? Visit our \u003ca href=\"\/pages\/know-your-filters\"\u003eKnow Your Filters\u003c\/a\u003e page or \u003ca href=\"\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","brand":"SpectraPure","offers":[{"title":"Default Title","offer_id":31968537509987,"sku":"38-0029","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0059\/1216\/6489\/products\/MTR-TDS-TRM1-4.png?v=1777488313"},{"product_id":"hanna-instruments-alkalinity-checker-mtr-alk-checker","title":"Hanna Instruments Alkalinity Checker - MTR-ALK-CHECKER","description":"\u003cp\u003eHanna Instruments Alkalinity Checker. Photometer-based test for marine alkalinity (dKH) — far more precise than a drop titration kit, with a simple two-cuvette workflow.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePhotometer accuracy — no color-matching to a chart\u003c\/li\u003e\n  \u003cli\u003eDirect dKH readout for marine aquariums\u003c\/li\u003e\n  \u003cli\u003eCompact, battery-powered\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRange: 0.0–20.0 dKH\u003c\/li\u003e\n  \u003cli\u003eResolution: 0.1 dKH\u003c\/li\u003e\n  \u003cli\u003ePower: 1× AAA battery\u003c\/li\u003e\n  \u003cli\u003eIncludes: meter, cuvettes, reagents\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOther Hanna checkers: \u003ca href=\"\/products\/hanna-instruments-calcium-checker-mtr-calci-checker\"\u003eCalcium\u003c\/a\u003e · \u003ca href=\"\/products\/hanna-instruments-marine-magnesium-checker-mtr-magnes-checker\"\u003eMagnesium\u003c\/a\u003e · \u003ca href=\"\/products\/hanna-instruments-phosphate-checker-mtr-phos-checker\"\u003ePhosphate\u003c\/a\u003e · \u003ca href=\"\/products\/hanna-instruments-nitrate-checker-mtr-nitrate-checker\"\u003eNitrate\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eQuestions about filters, production rates, or membranes? Visit our \u003ca href=\"\/pages\/know-your-filters\"\u003eKnow Your Filters\u003c\/a\u003e page or \u003ca href=\"\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","brand":"SpectraPure","offers":[{"title":"Default Title","offer_id":47300635754796,"sku":"38-0031","price":64.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0059\/1216\/6489\/files\/hi772-checkerhc_front-_2___16428.jpg?v=1777489593"},{"product_id":"hanna-instruments-calcium-checker-mtr-calci-checker","title":"Hanna Instruments Calcium Hardness Checker - MTR-CALCI-CHECKER","description":"\u003cp\u003eHanna Instruments Calcium Hardness Checker for marine aquariums. Direct ppm readout, repeatable to within a few ppm — the right tool for tracking dosing accuracy on reef tanks.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePhotometer accuracy\u003c\/li\u003e\n  \u003cli\u003eDirect ppm readout for marine calcium\u003c\/li\u003e\n  \u003cli\u003eCompact, battery-powered\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRange: 200–600 ppm\u003c\/li\u003e\n  \u003cli\u003eResolution: 1 ppm\u003c\/li\u003e\n  \u003cli\u003ePower: 1× AAA battery\u003c\/li\u003e\n  \u003cli\u003eIncludes: meter, cuvettes, reagents\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOther Hanna checkers: \u003ca href=\"\/products\/hanna-instruments-alkalinity-checker-mtr-alk-checker\"\u003eAlkalinity\u003c\/a\u003e · \u003ca href=\"\/products\/hanna-instruments-marine-magnesium-checker-mtr-magnes-checker\"\u003eMagnesium\u003c\/a\u003e · \u003ca href=\"\/products\/hanna-instruments-phosphate-checker-mtr-phos-checker\"\u003ePhosphate\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eQuestions about filters, production rates, or membranes? Visit our \u003ca href=\"\/pages\/know-your-filters\"\u003eKnow Your Filters\u003c\/a\u003e page or \u003ca href=\"\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","brand":"SpectraPure","offers":[{"title":"Default Title","offer_id":47300637983020,"sku":"38-0032","price":64.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0059\/1216\/6489\/files\/hi758-checkerhc-front-_2___62329.jpg?v=1777489577"},{"product_id":"hanna-instruments-marine-magnesium-checker-mtr-magnes-checker","title":"Hanna Instruments Marine Magnesium Checker - MTR-MAGNES-CHECKER","description":"\u003cp\u003eHanna Instruments Marine Magnesium Checker. The third part of the alk-Ca-Mg trio for reef chemistry — keeps the calcium-carbonate balance honest.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePhotometer accuracy\u003c\/li\u003e\n  \u003cli\u003eDirect ppm readout for marine magnesium\u003c\/li\u003e\n  \u003cli\u003eCompact, battery-powered\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRange: 1000–1800 ppm\u003c\/li\u003e\n  \u003cli\u003eResolution: 1 ppm\u003c\/li\u003e\n  \u003cli\u003ePower: 1× AAA battery\u003c\/li\u003e\n  \u003cli\u003eIncludes: meter, cuvettes, reagents\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOther Hanna checkers: \u003ca href=\"\/products\/hanna-instruments-alkalinity-checker-mtr-alk-checker\"\u003eAlkalinity\u003c\/a\u003e · \u003ca href=\"\/products\/hanna-instruments-calcium-checker-mtr-calci-checker\"\u003eCalcium\u003c\/a\u003e · \u003ca href=\"\/products\/hanna-instruments-phosphate-checker-mtr-phos-checker\"\u003ePhosphate\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eQuestions about filters, production rates, or membranes? Visit our \u003ca href=\"\/pages\/know-your-filters\"\u003eKnow Your Filters\u003c\/a\u003e page or \u003ca href=\"\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","brand":"SpectraPure","offers":[{"title":"Default Title","offer_id":47300669440300,"sku":"38-0033","price":64.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0059\/1216\/6489\/files\/HI783-CheckerHC-Front-1200x1200-bae16f96-4a43-42ac-b285-c144c15b6f5a__09369.jpg?v=1777489603"},{"product_id":"hanna-instruments-nitrate-checker-mtr-nitrate-checker","title":"Hanna Instruments Nitrate Checker - MTR-NITRATE-CHECKER","description":"\u003cp\u003eHanna Instruments Nitrate Checker. Detects low-level nitrate — useful for refining husbandry on lightly-stocked reefs, for monitoring source water on RO\/DI builds, and for hydroponic feed water.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePhotometer accuracy\u003c\/li\u003e\n  \u003cli\u003eDirect ppm readout for nitrate-nitrogen\u003c\/li\u003e\n  \u003cli\u003eCompact, battery-powered\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRange: 0.0–5.0 ppm NO₃-N\u003c\/li\u003e\n  \u003cli\u003eResolution: 0.1 ppm\u003c\/li\u003e\n  \u003cli\u003ePower: 1× AAA battery\u003c\/li\u003e\n  \u003cli\u003eIncludes: meter, cuvettes, reagents\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOther Hanna checkers: \u003ca href=\"\/products\/hanna-instruments-alkalinity-checker-mtr-alk-checker\"\u003eAlkalinity\u003c\/a\u003e · \u003ca href=\"\/products\/hanna-instruments-phosphate-checker-mtr-phos-checker\"\u003ePhosphate\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eQuestions about filters, production rates, or membranes? Visit our \u003ca href=\"\/pages\/know-your-filters\"\u003eKnow Your Filters\u003c\/a\u003e page or \u003ca href=\"\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","brand":"SpectraPure","offers":[{"title":"Default Title","offer_id":47300677566764,"sku":"38-0035","price":64.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0059\/1216\/6489\/files\/HI782-Front-1200x1200__07520.jpg?v=1777489606"},{"product_id":"hanna-instruments-phosphate-checker-mtr-phos-checker","title":"Hanna Instruments Phosphate Checker - MTR-PHOS-CHECKER","description":"\u003cp\u003eHanna Instruments Phosphate Checker. The low-level phosphate tool for reef husbandry and water quality monitoring — picks up traces that hobbyist drop tests miss completely.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePhotometer accuracy\u003c\/li\u003e\n  \u003cli\u003eDirect ppm readout for phosphate\u003c\/li\u003e\n  \u003cli\u003eCompact, battery-powered\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRange: 0.00–2.50 ppm PO₄\u003c\/li\u003e\n  \u003cli\u003eResolution: 0.01 ppm (at low end)\u003c\/li\u003e\n  \u003cli\u003ePower: 1× AAA battery\u003c\/li\u003e\n  \u003cli\u003eIncludes: meter, cuvettes, reagents\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOther Hanna checkers: \u003ca href=\"\/products\/hanna-instruments-nitrate-checker-mtr-nitrate-checker\"\u003eNitrate\u003c\/a\u003e · \u003ca href=\"\/products\/hanna-instruments-alkalinity-checker-mtr-alk-checker\"\u003eAlkalinity\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eQuestions about filters, production rates, or membranes? Visit our \u003ca href=\"\/pages\/know-your-filters\"\u003eKnow Your Filters\u003c\/a\u003e page or \u003ca href=\"\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","brand":"SpectraPure","offers":[{"title":"Default Title","offer_id":47300702699820,"sku":"38-0034","price":64.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0059\/1216\/6489\/files\/marine-phospahte-ulr-hi774__89185.jpg?v=1777489614"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0059\/1216\/6489\/collections\/MTR-TDS-DM1_5c3d3c98-3080-4f42-b1d8-74af3331d3ea.png?v=1777485565","url":"https:\/\/spectrapure.com\/collections\/meters.oembed","provider":"SpectraPure, Inc.","version":"1.0","type":"link"}