{"product_id":"hanna-groline-1413-µs-cm-conductivity-standard-1-gallon","title":"Hanna GroLine 1413 µS\/cm Conductivity Standard — 1 Gallon","description":"\u003cp\u003e1413 µS\/cm (1.41 mS\/cm) is the standard calibration point for EC and TDS meters. This 1-gallon jug of GroLine conductivity standard — supplied with a certificate — is the economical size for rooms that calibrate meters constantly.\u003c\/p\u003e\n\u003cp\u003eHanna conductivity standards are prepared to precise formulas and standardized against NIST-traceable references; lot number and expiration date are printed on the label.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":54278765379867,"sku":"HI7031-1G","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0708\/6768\/1563\/files\/hi7031.jpg?v=1792259010","url":"https:\/\/ghhydro.com\/products\/hanna-groline-1413-%c2%b5s-cm-conductivity-standard-1-gallon","provider":"Green Harvest Hydroponics","version":"1.0","type":"link"}