Digital Thermometer HT-1

* Parameters: 1) Temperature range: -50 ?°C ~ +300 ?°C /-58 ?°F ~ +572 ?°F 2) Distinguishing rate: 0.1?° between -19.9?° ~199.9?°, otherwise 1?° 3) Accuracy: ?± 1?°C (between ?± 20?°C~ +80?°C), otherwise ?± 2?°C 4) Ambient temperature: -10?°C ~ +40?°C 5) Battery: 1pc x 1.5V AG 13 or LR44 6) Probe Size: 125mm(L) * Functions: 1) Memory of the last measuring data, when open, display the last measuring date for 1.5 second then jump to normal display. 2) Measuring and display low voltage: when voltage lower than 1.3v, LCD display "LOW" 3) Saving power: auto off after 15 minutes no operation. 4) Sensor error display: Display a??E00a?? when sensor open circuit or lower than measuring range; Display a??E11a?? when sensor short circuit or higher than measuring range. 5) Switch between ?°C / ?°F * Operation description: 1) ON/OFF: Press the key to turn on/ off the thermometer. ?°C / ?°F: Press "?°C / ?°F" button once to change the temperature unit. 2) Open the battery cover by swirling anti clockwise, replace the battery, then close the battery cover tightly by swirling clockwise. 3) No use for long time, please take out the battery.