Review on AOVIOANDY Refrigerator Thermometer Digital Waterproof by Danielle Ward

Seems accurate and works well in fridge. I bought these 2 packs to ensure the digital fridge settings for temperature are accurate and so far good for the fridge part. However NOT GOOD for a freezer although the product description says it can be used in a fridge and "freezer". The freezer says "LL" which is useless to me. And that tells me what? I have no idea what LL specifies. Frozen? Less than 0? So I paid for 2 packs but only used one.