Multifunctional Electronic Thermometer LCD Digital Temperature Detector ℉ ℃ External Sensor Thermometer for Kitchen Baking. Fahrenheit Celsius temperature conversion; maximum temperature, minimum memory function; temperature data hold function; power : AAA alkaline batteries a 1.5v NOT include. use of the environment: humidity 5% - 85% RH, temperature: 0 ℃ - 50 ℃ 5 seconds high and low temperature alarm settings; Technical parameters: Measuring range: -50 ℃ - + 300 ℃ (-58 ℉ - + 572 ℉); resolution: temperature (-19.9 ℃ - 199.9 ℃) 0.1 ℃, other 1 ℃; accuracy: ± 1 ℃ (± 1.8 ℉), other range: 20 ℃ - + 80 ℃ operating instructions: power (ON / OFF) to display the full stroke, then enter the measurement mode. alarm settings (SET): the SET key to enter the alarm setting mode. Cycle Adjustment (ADJ) and confirmation (OK); enter the temperature setting mode mode (temperature value is only expressed in degrees Celsius C) "Hi" and a high temperature alarm temperature starts flashing, indicating the start of high temperature alarm temperature settings.