OVERSTOCKED - Glow Room Sensor The extra Glow Room Sensor will turn every room into the perfect sleep environment. Set the perfect conditions for a great night’s sleep. Temperature and humidity are the two most critical factors you can control in any baby's room, and the Glow Perfect Sleep Sensor allows you to monitor this from anywhere in the house, ensuring conditions are always conducive for a safe and comfortable sleep. Our smart sensor technology will inform you of the best TOG based on the conditions of your child’s sleep space, not based on the weather outside. Purchase an extra sensors so you can view up to 3 rooms in your home while always having the monitor by your side. Easy to set up and use with each sensor being fully portable! (Main Glow Perfect Sensor not included)