The Bluetooth Thermometer Hygrometer with a 260FT range is a reliable temperature sensor perfect for monitoring greenhouse temperatures. With a temperature accuracy of 0.5 degrees, this white device can be wall-mounted and operates on 2 AAA batteries (included). Its compact size makes it easy to use and its long range ensures accurate readings from anywhere in your greenhouse. The TP351 model from TACKLIFE is a must-have for any gardening enthusiast looking to maintain the ideal environment for their plants. Nd 137