$55.99 Grower's Edge Thermo/Hygrometer - Brew & Grow Hydroponics and Homebrewing Supplies of Chicagoland
Grower's Edge Digital Thermometer / Hygrometer w/ Remote Sensor - Walmart.com - Walmart.com
Grower's Edge® Thermometer/Hygrometer with Sensor | Hawthorne Gardening Company - Grow Lights 
