1. Detects the optimal time for mating in bitches 2. Helps reduce the need for repeated mating attempts 3. Assists in identifying false heat, silent heat, and ovarian cycle irregularities 4. Helps manage issues related to heat cycle disorders 5. Saves time and reduces the need for frequent veterinary visits 6. Helps lower costs associated with multiple matings Instructions: 1. Clean the probe before use. Ensure the probe is clean. Do not use disinfectants, alcohol, or other chemical cleaning agents 2. Restrain the dog and insert the probe to the cervical area (guideline: small dog 34 cm, medium dog 68 cm, large dog 910 cm) 3. After insertion, rotate the probe 480 to 720 degrees and keep it in a fixed position without movement. Press the switch to display the data. Press the switch again to retrieve the second reading. A third press will provide a third set of data. For best results, keep the device stationary during testing. The third set of data is recommended for use Specifications: Testing Method: 2.6-inch LCD screen Display Screen: 2.6-inch LCD screen Detection Speed: within 3 seconds Detection Range: 101990 units Working Temperature: 050C Maximum Humidity: 85% Power Source: 1 x 9V battery (not included) Color: Black Material: ABS Size: 32 x 10 cm Package Contents: 1 x Dog Ovulation Detector (battery not included) Note: The package includes only the items listed above. Other items are not included. Note: Lighting effects and display differences may cause slight variations in the color of the item shown in the image compared to the actual product. Measurement error allowance: +/- 13 cm