Accurate to 1.8 degrees. Keeps minimum and maximum temps for current 24-hour period and previous six periods. Each sensor probe has 9'9" of wire. Separate temperature readings/memory for each sensor. Button for switching Farenheight or Celcius is inside the battery cover. Unit has a reboot button to erase past info and start new. Measurement range: -40/120F degrees, (-40/50C degrees).
Warranty
Manufacturer warrants it to be free from defects for one year.
Records last 7days min/max, logs temps with out user action, long battery life 1 yr; Have had units in field for 4 yrs, sealed from weather, + - 1 degree grower level precision.