FUNCTIONAL SENSOR: This remote weather sensor will match most BALDR weather stations (sold separately). Our home wireless weather station expand to three (3) channels to enable them to collect data from three (3) different locations and are designed to display outdoor temperature and humidity. WEATHERPROOF DESIGN: Our outdoor wireless thermometer sensor is built to withstand harsh conditions. We recommend placing this home weather station wifi sensor under a shelter for longer-lasting performance. Ideal for use with any weather station home setup, ensuring consistent and reliable weather data even in tough weather. WALL OR DESK PLACEMENT: Easily set up this wireless home weather station sensor on a shelf or mount it on a wall. This versatility ensures you can place this outdoor thermometer wireless sensor wherever you need in your home, providing easy access to accurate weather information from your weather station wifi system. EXTRA SENSOR FOR MULTIPLE LOCATIONS: Expand your wireless home weather stations with this extra sensor, designed to support all three channels of your BALDR professional weather station. This weather monitoring sensor is a perfect addition for users who want to track conditions in multiple rooms or outdoor areas at once. BATTERY-POWERED OPERATION: Powered by two AA batteries (sold separately), this weather monitor wireless sensor ensures smooth operation without cords or wires. Set it up effortlessly with your home weather stations for home, ensuring seamless wireless weather station connection and accurate data transmission. Meet BALDR's latest and improved version of the remote sensor that will match most BALDR weather stations (sold separately). Our home weather stations expand to three (3) channels to enable them to collect data from three (3) different locations and are designed to display outdoor temperature and humidity. Our outdoor weather station sensor was carefully designed and expertly crafted to be weatherproof. We do recommend, however, that you place it outdoors with a shelter. If leaving it in rain, water can get inside the battery compartment. Able to sit on a shelf or hang on a wall, our digital weather station sensor lets you place it virtually anywhere for your convenience. Each digital outdoor weather station sensor can lock on one (1) channel pairing with BALDR weather stations with three (3) channels. This is the perfect extra mini weather station for your BALDR weather station. Take advantage of all three (3) available channels offered by our home weather station with an extra sensor. Our conveniently compact indoor weather station sensor is powered by two (2) AA batteries (sold separately). To ensure proper synchronization, insert the batteries to your base unit first and then insert batteries to the remote sensor.