My thermometer is reading in the low 90's and it gets lower every time I use it. can this device be re-calibrated?
Yes, it would appear your thermometer needs to be recalibrated. You can find instructions to do so here: https://cdn.shopify.com/s/files/1/0240/6504/8681/files/APX_70033B_INST_REFERENCE_06.pdf?v=1584537693
Hope this helps!
How do I know if battery is low
A black bar will show on the LCD display to tell you to change the battery. You can find the full instructions for this thermometer here: https://cdn.shopify.com/s/files/1/0240/6504/8681/files/APX_70033B_INST_REFERENCE_06.pdf?v=1584537693
What does L mean? Battery low?
The L is actually "Lo" which appears when the last recorded temperature is out of the temp range. Anything under 90 degrees F reports a Lo and anything over 109.9 degrees F reports a “Hi”. When the battery is low, the screen flashes a battery icon in the bottom right corner of the LCD display.
how do I change to farenheit?
The button on the front of the thermometer should give you the option to change it to Fahrenheit.