Self-setting digital clock with indoor and outdoor temperature also features alarm with snooze option and low battery indicator for both clock and wireless sensor. Time sets to specified time zone and will automatically reset for daylight saving time. Outdoor temperature receives from wireless transmitting sensor within a range of 260 feet from clock. Optional for wall hanging or self-standing. • REMOVE POWER: Remove batteries from the sensor and batteries (and/or a/c cord) from the display. • DISCHARGE ELECTRICITY: With the power removed, press one of the buttons on the display at least 20 times to clear all memory. Please do this even if the display is blank to remove any random electricity. Verify the display is blank. • UNPOWERED FOR 15 MINUTES: It is important with most of our displays to remain without power for at least 15 minutes. • NOTE: Failure to allow a display to rest for 15 minutes can result in failure to connect with the outdoor sensor or missing segment on the display. The instruction manual describes a setup for a new unit that has not had time to build up residual electricity. • BATTERIES: Please be sure you are using fresh batteries testing to a minimum of1.48, on a voltmeter that reads in numbers. • SENSOR FIRST: Place batteries into the outdoor sensor first. Make sure they are installed according to the diagrams in the battery compartment. • DISPLAY NEXT: Install batteries (or a/c cord) into the display according to the diagram in the battery compartment. • CONNECTION: Allow the sensor and display to remain 5 feet apart for 15 minutes to establish a strong connection. Do not press buttons at this time. You should see a reading on the outdoor temperature area in the first minute