?How to Use1.Please clean the detector probe rod and probe before use. We recommend that you use household detergent, find a cotton cloth, put the detergent on the cotton cloth, and then repeatedly wipe the probe rod and probe, especially the probe area must be fully wiped. Because it relies on the probe to measure the resistance of the mucus of the bitch during estrus, it is important to ensure the cleanliness of the probe. Finally, rinse it with clean water to use directly. After rinsing with clean water, please do not dry again as water droplets will not affect the test results. (Do not use alcohol, disinfectant and other disinfection products).2.Hold the dog in place and insert the detector into the dog approximately at the cervical opening. The reference standard is 1/3 for small dogs, about 6-8cm for medium-sized dogs, and 8-10cm for medium and large dogs. Generally, 10cm is the majority, and the length of the probe rod of the detector is 12cm. Please do not insert the entire probe rod of the detector.3.After inserting, rotate the detector for one and a half cycles to two cycles, and fix it in this position without moving. Then click the switch, "--" will appear on the display, and then the data will be displayed. Click the switch again, and the second set of data will appear on the display. Then click the switch a third time and the third set of data will appear on the display. With the correct operation method, the data of the second and third groups are basically the same. When reading these three sets of data, make sure not to change the position of the probe, do not move the position of the probe, do not pull it out and insert it in again, and do not rotate the device once for each set of data. Otherwise, you will definitely not get accurate data. We recommend that first-time users take three sets of data so that your data is more accurate and evidence-based.