ZHANXUBIO Airtight Mason Jar Lids Built-In Stash Hygrometer Herb Curing monitor fits all Wide Mouth/Regular Mouth Mason Jars humidity lid 2pcs (86mm, Green)

We have been selling our unique temperature and humidity sensing biophotonic jars . Our unique manufacturing processes allow for a great solution for Mason jar users. BPA Free Plastic Curing Monitor Jar Lid (We sell both Celsius and Fahrenheit units).Operation Method:Long press the key 1.5 seconds to power ON/OFF,double click to swith °C / °F.To ensure accurate measurements, allow the lid to acclimate to room temperature for a period of time before use. Our Ball mason plastic curing jar lids are designed to replace the metal seal and lid that came with the wide-mouth or 32oz mason jars you already own. Mason jars are a great storage solution for your harvested, keeping them inside with an air-tight seal. Our curing jar lids contain a built-in, air-sealed digital hygrometer to help you measure humidity and temperature, which are vital components that must be monitored in order to achieve a proper cure,finally unleashing the highest potential and potency from your flower. Fits all wide mouth 86mm/regular mouth 70mm mason jars. For better performing glassware please check out the Mypharmjar uv stash glass