Humidity Gauge for your in-store refrigerators (Vital!)

The humidity gauge allows you to quickly and easily check the temperature and humidity levels in your store refrigerator to ensure your hibernating mason bee cocoons are stored at the right humidity level. Frost-free refrigerators slowly dehydrate food, including cocoons!  Place a bowl of water in your store refrigerator and check on the water level weekly. Place the humidity gauge inside your refrigerator to make sure the humidity level surrounding your cocoons is above 30%. Batteries are included.