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12/24h quartz clock (hour and minute, manual setting)
indoor and outdoor temperature reading in °C or °F (depending on the selected time format)
minimum and maximum records of indoor and outdoor temperatures
can receive up to three outdoor transmitters
wireless transmission at 868 MHz
signal reception intervals at 4 seconds
low battery indicator for the base station and transmitter
wall-mounted or freestanding
six language manual: French, English, German, Italian, Spanish, Dutch
extra/spare external sensor: WSTR18WSTR20
measuring range:
indoor: -9.9 °C ~ +59.9 °C with 0.1 °C resolution
outdoor: -39.9 °C ~ +59.9 °C with 0.1 °C resolution
checking interval:
indoor: every 15 s
outdoor: every 4 s
transmitter:
transmission frequency: 868 MHz with IT+ technology
transmission distance: ± 100 m (in open field)
IT+: Instant Transmission technology
power supply:
temperature station: 2 x 1.5 V AA batteries LR6C (not incl.)
outdoor transmitter (WSTR9): 2 x 1.5 V AA batteries LR6C (not incl.)
dimensions:
temperature station: 80 x 150 x 29.4 mm
outdoor transmitter (WSTR9): 38.2 x 128.3 x 21.2 mm
weight:
temperature station: 112 g
outdoor transmitter (WSTR9): 42 g