FOR SALE IS ONE (1) NEW HUMIDITY MONITOR HYGROMETER WITH PERCENTAGE HUMIDITY ANALOG READOUT MPN HG104 UPC# 20530410 THIS MEASUREMENT DEVICE WILL READ INDOOR HUMIDITY PERCENTAGE QUICK AND EASY. DIMENSIONS ARE 1 3/4" diameter WITH 1 1/2" diameter (about the size of a silver dollar), CLEAR PLASTIC DIAL FACE, INDICATES OPTIMAL COMFORT IN SUMMER OR WINTER, FOR USE IN ANY ROOM IN YOUR HOME AND NO BATTERY REQUIRED. GREAT FOR YOUR HOME, BASEMENT, HUMIDOR, GREENHOUSE. THE PROPER AMOUNT OF HUMIDITY IN YOUR HOME IS IMPORTANT, AND CAN AFFECT YOUR COMFORT AND WELL BEING. PARTICULARLY DURING WINTER MONTHS, THE INDOOR HUMIDITY CAN DROP BELOW 30%, A LEVEL WHICH CAN BE BOTH UNHEALTHY AND UNCOMFORTABLE. BY USING THIS HUMIDITY MONITOR, YOU CAN MONITOR YOUR ROOM'S HUMIDITY AND KNOW EXACTLY WHEN TO INCREASE OR DECREASE THE HUMIDITY LEVEL. MONITOR YOUR BEDROOM, BASEMENT OR LAUNDRY ROOM FOR TOO MUCH HUMIDITY. A HUMID ENVIRONMENT IS A PERFECT ENVIRONMENT FOR THE GROWTH OF MOLD. JUST PLACE YOUR MONITOR ON A DESK, TABLE OR BUREAU AWAY FROM WINDOWS, HEATERS OR HUMIDIFIERS, MOUNTING HOLE ON THE BACK ALLOWS YOU TO HANG IT ON THE WALL WITH A SMALL TACK. ON FIRST USE, ALLOW 30 MINUTES FOR ACCURATE READING. USE OR ADJUST YOUR HUMIDIFIER OR CLIMATE CONTROL SYSTEM TO MEET YOUR COMFORT LEVEL. THIS DEVICE WILL DELIVER THE PERCENTAGE (%) HUMIDITY, VERSUS RELATIVE HUMIDITY. FOR ACCURATE AND BENCHMARK MEASUREMENTS OF HUMIDITY IN THE LIVING ENVIRONMENT, PERCENTAGE (%) HUMIDITY IS MUCH PREFERRED VERSUS RELATIVE HUMIDITY. YOU WILL RECEIVE ONE (1) HUMIDITY MONITOR HYGROMETER SHIPPED BY USPS..... what is a hygrometer? the hygrometer measures the percentage humidity in the home, basement, tool shed, garage, retail environment, greenhouse, aviary, etc. percentage humidity is a more absolute benchmark of your humidity, versus relative humidity. If you are attempting to monitor the moisture in your home, basement, etc, this precision device is required. BID AND BUY HERE IN IN ABSOLUTE CONFIDENCE SINCE I HAVE THOUSANDS OF POSITIVE FEEDBACK AND TEN+ YEARS EXPERIENCE. I SHIP WITHIN TWO DAYS OF RECEIPT OF PAYMENT, OFTEN THE NEXT DAY. $3.81 USPS GREEN SHIPPING USING RECYCLED PACKAGING MATERIALS AND ENVIRONMENTALLY FRIENDLY MATERIALS TO ANYWHERE USA. I DO NOT SHIP ANYWHERE ELSE. HAVE A GREAT DAY AND THANK YOU FOR STOPPING BY......