One display each for interior and exterior temperature.
Memory for highest and lowest temperature.
Waterproof exterior sensor with extremely thin cable (aprox 3m) for easy leading through the window seal.
Provision for hanging or standing on horizontal surface.
Battery 1 x AAA (Supplied)
Readings in C or F
outdoor: -50C to +70C (-58F to +158F)
indoor: -10C to +60C (+14F to +140F)
Size of unit 100 x 110 x 20mm
Size of display 80 x 63mm digits 22mm