Memory Function: Records historical temperature and humidity values, helping users track environmental trends in homes, pharmacies, or warehouses Double Systems: Features built in and external probes to simultaneously display indoor / outdoor temperature (50℃~70℃) and humidity (10% 99%), providing real time environment tracking with ±1℃ / ±5% accuracy Clear LCD Display: Equipped with a large screen and 45° tilt design for effortless reading, showing bold digits for indoor / outdoor data at a glance Versatile Placement Option: Designed for wall mounting or tabletop use with a rear hanging hole, ideal for nurseries, flower shops, and living spaces Wear Resistant: Made from with 1.5M probe cable, lightweight and resistant; requires 1.5V battery (not included, Manufacturer: carotoe