La Crosse Technology 450 - Manual (Page 6)

6
SPECIFICATIONS
Indoor Temperature : +32 °F to +122 °F (0 °C to + 50 °C)
In/Out Humidity : 20% - 99% H
Remote sensor : -4 °F to +140 °F (-20 °C to +60 °C)
Channel : max. 3 remote sensors
Transmission : up to 75M (246 ft.) in open area, RF434 MHz
Resolution : 0.1 degree C for temperature, 1% for humidity
Heat Index :
Indoor : 23°F to 122°F (-5°C to 50°C)
Outdoor : -4F to 140°F (-20C to 60°C)
Elevation : -160 ft. to 3,940 ft. (-50M to 1,200M)
Clock : WWVB Atomic Clock, Quartz back-up
Power : 6.0V adapter & AAA x 3 pcs for main unit
AAA x 2 pcs for remote sensor
Trouble shooting for WS 450
Batteries
are our #1 warranty issue. Please be sure you are using plain alkaline batteries
dated at least 6 years in advance or reading at least 1.48 on a voltmeter. Be sure that your a/c
cord is properly plugged into the base.
Outdoor Temperature/Humidity
Shows dashes or is inaccurate-
• Check placement of sensor and obstructions such as windows, stucco, metal, trees etc.
• Did sensor get wet? Bring in, remove, batteries allow to dry and try restart.
• The sensor will read the temperature in the location where it is placed. Check for sources
of heat or reflected heat. Position your sensor under an eave or window ledge etc. on
North side of home.
• Check the channel button to be sure you are reading the correct sensor.
• Please note the humidity range is 20-99%. Below 20% you may see dashes.
• Check Batteries-and complete a restart.
Adjust to Fahrenheit or Celsius
• On the sensor, remove the battery cover and press the button for F/C
• On the base station press the button for F/C
Restart
• Bring both units inside and have the units at least 5 feet apart with nothing between them.
• Remove all power from both units.
• Press one of the buttons on the display at least 20 times to clear all memory. Verify that
the display is blank before proceeding.
• Let the all units sit with batteries out for 10 minutes.
• Be sure to use a new, Brand Name Alkaline battery dated at least 6 years in advance
(super, ultra, max, heavy duty and rechargeable types should be avoided).
• Plug in a/c cord and/or insert batteries in the display unit, then Insert batteries into the
sensor.
• Press and hold CHANNEL button on display unit until a beep is sound to search for
remote sensor.
• Press the TX button on the back of remote sensor to transmit RF signal.
• When RF connection is established, the respective temperature & humidity of the selected
channel will appear on the main unit.
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