{"product_id":"aqua-master-tools-e300-pro2-ec-substrate-replacement-electrode","title":"Aqua Master Tools E300 Pro2 EC Substrate Replacement Electrode","description":"\u003ch2\u003eA drop-in replacement probe that saves buying a whole new substrate meter\u003c\/h2\u003e\u003cp\u003eThe E300 Pro2 is a direct-insertion meter that growers use to check EC straight in the growing medium — pushed into coco, rockwool or soil to get an instant reading without pulling a runoff sample first. Like every probe in the Aqua Master Tools range, the electrode is designed to be replaced separately from the meter body, so when a probe eventually wears out from repeated insertion into substrate (the most physically demanding way to use an EC probe) growers do not need to replace the whole unit.\u003c\/p\u003e\u003cp\u003eThis is the exact factory-spec replacement electrode for the E300 Pro2, built to the same IP67 waterproof standard as the original and fitted with the same connector, so it is a straight swap with no recalibration workaround needed beyond the meter's normal calibration routine. Keeping a spare on hand is worthwhile for any grower running regular substrate EC checks through coco or rockwool systems, since a damaged or worn probe otherwise takes the whole meter out of action mid-grow.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine replacement electrode\u003c\/strong\u003e built to original E300 Pro2 specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP67 waterproof\u003c\/strong\u003e for repeated insertion into wet substrate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple screw-fit swap\u003c\/strong\u003e — no need to replace the whole meter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtends the working life\u003c\/strong\u003e of an E300 Pro2 substrate meter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect-insertion design\u003c\/strong\u003e for instant in-substrate EC checks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"hcs-specs\"\u003e\u003cul\u003e\n\u003cli\u003eCompatible with: Aqua Master Tools E300 Pro2 Substrate EC\/Temp meter\u003c\/li\u003e\n\u003cli\u003eWaterproof rating: IP67\u003c\/li\u003e\n\u003cli\u003eMeasures: EC (substrate, direct insertion)\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Aqua Master Tools","offers":[{"title":"Replacement Electrode","offer_id":53500711797002,"sku":"AMT-E300PRO2-EC-ELECTRODE","price":70.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/ECElectrodeE300Pro.png?v=1786377498","url":"https:\/\/hydrocropshop.co.uk\/products\/aqua-master-tools-e300-pro2-ec-substrate-replacement-electrode","provider":"Hydro Crop Shop","version":"1.0","type":"link"}