How to Obtain Accurate Data? Use a wet cotton cloth to wipe the probe and probe rod before use. Do not wipe off the water, and use it directly. Insert it diagonally upward to avoid hurting the dog. Clean the probe and probe rod thoroughly after use. Specifications - LCD Screen: 2.6" - Max. Humidity: 85% - Working Temperature: 0-50? - Power Supply: 9V battery - Product Size: 36*18*14cm / 14.2*7.1*5.5in - Net Weight: 300g / 0.7lbs - Case Size: 34.8*18*15cm / 13.7*7.1*5.9 Package Included - 1x Dog Ovulation Detector Tester - 1x Battery - 1x English Instructions - 1x Storage box