The K82-3 REOTEMP Soil Thermometer is a thermometer to assist in seeding and transplanting of plants. The K82-3 is an accurate and rugged pocket thermometer featuring a quick response time due to its quality bimetal element requiring no batteries. The 7 inch stem is stainless steel and features a pointed tip for insertion into garden soil. Includes a protective sheath with pocket clip. Re-calibrate with a turn of the calibration screw. One-year limited warranty.