ThermoPro Indoor Outdoor Thermometer Wireless TP200B, Thermometer Indoor Outdoor with Temperature Sensor Up to 500FT, Outdoor Thermometers for Patio Garden Cellar Home Room. 2,833. 100+ bought in past month. $2499. Save $2.00 with coupon. FREE delivery Sat, Jul 29 on your first order. Or fastest delivery Thu, Jul 27.