A must-have item for campers! Knowing the temperature during camping helps prevent heatstroke in the summer and hypothermia in the winter. Also, by bringing a thermometer every time you camp, you can get a good idea, such as "I'll need a down jacket when it gets below ○○℃." You can also place the main unit inside the tent and the sensor outside to know the temperature inside and outside the tent simultaneously. It also has a clock, so it's convenient to have one. 【Features】 ・Automatically memorizes the highest and lowest temperatures & dates for external and main units 【Specifications】 ・Main unit is splash-proof (IPX4) ・External temperature sensor is completely waterproof (IPX7) ・Display temperature range OUT (External): -20~70℃ IN (Main unit): -10~50℃ ・Measurement interval OUT (External): 2 seconds or 10 seconds, switchable IN (Main unit): Fixed at 10 seconds ・The cord (approx. 3m) can be wrapped around the main unit for storage ・Always displays month/day/clock ・Battery replacement time is indicated by an icon ・Main unit size: 122 x 80 x 19 (mm) ※I am also selling Power Forest Incense separately, so combined shipping is also possible.