Veterinary Infrared Thermometer for Pigs Cattle Sheep Horses Animal Electronic Thermometers Guns Item Type: Animal Thermometer Material: Plastic Color: As shown in the picture Model: YM-558D Battery: 2 x AAA battery(not included) Temperature Measurement Error: 0.3(0.45) Operating Humidity: 85% Measuring Distance: within 5 cm (within 2 inches)Weight: Approx.186g/6.6oz In order to stabilize the data, please check the following steps when using a non-contact infrared thermometer: : Use an ordinary glass thermometer to measure the animal, assuming a temperature of 37.5; : Use a non-contact infrared thermometer to measure the same animal and keep a distance of less than 5cm (note that obstacles that may affect the measurement, such as hair and stains, should be removed). If the same temperature of 37.5 is obtained, it means that the non-contact infrared thermometer is set up properly and can be used. If you get a low reading, such as 36.4C, with a difference of 1.1C, you need to calibrate the non-contact infrared thermometer and add the difference. Press and hold the "MODE" button for two seconds, the screen displays F1, then press the "MODE" button until it enters F3, and then press the "UP" button to add the difference. : Measure again to check. Maintenance and cleaning 1. The probe head needs to be carefully protected. 2. Please gently wipe the surface of the meter. 3. Do not use corrosive cleaners. 4. Do not clean the product in water or other liquids. 5. Put this product in a dry place to reduce dust, pollution and sunlight. LCD cannot display the value 1. If in the state of animal measurement, when the temperature is lower than 32C or higher than 45C, the LCD will not display the value but will display "LO" or "H". LCD display information "HI" When using non-contact infrared temperature, LCD displays the message "HI" The surface of the analyzed animal is above 45C. LCD displays the message "LO". When using non-contact infrared temperature. LCD display information "LO" The animal temperature was below 32C when analyzing the meter.