The Maxell CD-R gives perfect performance every time,

Welcome to the iBoutique Wireless Weather Station. Whether you are a keen gardener and need to monitor conditions outside, like to monitor conditions in your home or you are just a weather enthusiast this attractive weather station will keep you informed. Say goodbye to wires as this is one of the latest 433MHZ wireless units. It shouldn't interfere with home Wi-fi networks like some units either. The main display unit has a large easy to read display and can be stood on a table top or wall-hung. Just simply hang the wireless external sensor in a suitable location, configure and you are good to go. Please note the sensor is not waterproof so you will need to place it somewhere protected from moisture e.g. shed, garage etc. This item has so many features yet it is still simple to operate. Full instructions are included but you should be up-and-running within about 10 minutes. You want to see what the temperature has dropped / risen to? No problem, press the MAX/MIN button for the maximum or minimum recorded temperature. You can even get the unit to sound an alarm if a temperature reaches a specified level. Because the unit can use 3 different sensors, you can monitor the conditions in multiple locations. (To purchase additional sensors after you have added this to your basket, search for B0036ZFN3A on Amazon). To summarise, this is a very useful gadget which we use ourselves. Now you can't get a higher recommendation than that.