easy-to-read 2-inch Wide-scale Composting Thermometer With Color-coded Temperature Range. The 40f To 180f Temperature Scale (10c To 76c) Is Incremented In 2f Increments To Achieve Accurate Readings. No Battery Is Required, And The Soil Temperature 2 Inches Below The Surface Is Automatically Measured. easy To Read And Clear Temperature Zone. The Soil Test Thermometer Can Work Overnight In The Compost. the Backyard Thermometer Compost Has A Durable Stem With A Length Of 20 Inches And A Diameter Of 3/16 Inches, Which Can Easily Reach The Center Of The Compost For Accurate Reading. It Is Very Suitable For Large Backyard Composting, Planting, Transplanting And Gardening. composting Soil Thermometer, With 3 Temperature Zones Indicating Composting Activity-stable, Active And High Temperature. It Is Easy To Insert Into The Compost Pile, Making Composting Very Easy the Soil And Compost Thermometer Is Made Of High-quality 304 Anti-rust Stainless Steel, And The Connection Between The Dial And The Valve Stem Is Strengthened, Which Can Be Used For A Long Time.