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About the Atomic Clock
A clock is considered atomic if it has an accuracy of one second in
a million years. Consumer clocks are considered atomic if they
attain this accuracy by receiving a signal from an atomic clock. In
North America, the National Institute of Standards and
Technologies operates an atomic clock in Colorado which
transmits the time codes via the radio station WWVB. The signal is
transmitted in a very low frequency (60,000 Hz). The Acurite clock
you have purchased includes a built-in receiver which picks up the
signal from the WWVB station. NOTE: Due to solar radiation in the
atmosphere, the atomic clock signal is weak during the day. Most
synchronization with the WWVB atomic clock signal happens at
night when there is less interference.
Measurement Ranges
Temperature
Main Unit Temperature: 32ºF to 122ºF / 0ºC to 50ºC
Wireless Sensors:
temperature sensor: -40ºF to 158ºF / -40ºC to 70ºC
humidity sensor: 16% RH to 99% RH
wind sensor: up to 99 mph / 159 Kph (depending on conditions)
Specifications
Power Requirements
Main Unit: 3 x "AA" alkaline batteries
Wireless Sensors:
temperature & humidity sensor: 2 x "AA" alkaline or lithium (recommended) batteries
wind sensor: 2 x "AA" alkaline or lithium (recommended) batteries
Wireless Communication
Radio Frequency: 433 mhz
Transmission Intervals: every 16 seconds
Atomic Clock
Frequency: WWVB 60Khz
Synchronizes Daily
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ALWAYS USE PROPER TOOLS AND MOUNT/PLACE SENSORS IN AREAS THAT
WILL BE SAFE TO YOURSELF AND OTHERS. SEEK PROFESSIONAL ASSISTANCE
IN MOUNTING/PLACING THE WIRELESS SENSORS AND FOLLOW YOUR LOCAL
LAWS AND REGULATIONS WHEN CHOOSING A MOUNTING/PLACEMENT
LOCATION FOR THE WIRELESS SENSORS
PLEASE DISPOSE OF OLD OR DEFECTIVE BATTERIES IN AN ENVIRONMENTALLY
SAFE WAY AND IN ACCORDANCE WITH YOUR LOCAL LAWS AND REGULATIONS.
BATTERY SAFETY: Follow the polarity (+/-) diagram in the battery compartment. Promptly remove dead
batteries from the device. Dispose of used batteries properly. Only batteries of the same or equivalent
type as recommended are to be used. DO NOT incinerate used batteries. DO NOT dispose of batteries in fire, as
batteries may explode or leak. DO NOT mix old and new batteries or types of batteries (alkaline/standard). DO NOT use
rechargeable batteries. DO NOT recharge non-rechargeable batteries. DO NOT short-circuit the supply terminals.
To receive product information, register
your product online. It's quick and easy!
Log on to http://www.chaneyinstrument.com/product_reg.htm
Product Registration
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