The WS-2801a advanced wireless color forecast station is packed with features at a very affordable price and includes a logical, easy to read color screen layout. The WS-2801a features a color forecast icon that reacts to changes in barometric pressure, providing a forecast for upcoming weather in the next 24 to 48 hours with reasonable accuracy. Equipped with an atomic clock, time is set automatically via radio and in synch with the u.S. Atomic clock for utmost accuracy and automatically sets adjusts for daylight savings time. The remote wireless sensor transmits up to 300 feet line of sight (100 feet under most conditions) includes an LCD display, so the temperature and humidity can be read in both locations. The WS-2801a supports up to three wireless remote sensors (wh32m), available below. Optional calibration is provided for the utmost accuracy. Although calibration is optional and not required, the purpose of calibration is to fine tune or correct for any sensor error associated with the device's margin of error and inevitable sensor drift associated with electronic measurements. The measurement can be adjusted from the console to calibrate to a known source. Other features include min and max that resets daily or manually, barometric pressure trend arrow, and moon phase. Special notes and caveats - the backlight requires ac power to operate. The batteries are intended for back-up power only. The backlight will remain on for 5 seconds when on back up battery power only. The backlight will stay on if you use the ac adapter.
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