Slide the back cover off of the clock and ensure that two AA batteries are installed in the compartment. If batteries aren't installed, insert two batteries into the compartment according to the polarity diagram.
Brookstone manufactures a portable sensor clock with five main features. It has an alarm feature as well as a built-in thermometer. It's namesake feature is a sensor-activated LCD screen. This screen lights up when you move your hand near the sensor. This feature saves battery life and can be turned on and off. Learning the other features on the clock will only take a matter of minutes.
Press the "Sensor" button on the back of the clock to set the motion sensor on or off.
Press the "Mode" button on the back of the unit to select the mode you would like. You can choose between time, thermometer, alarm, date or timer.
Press the "Set" button on the rear of the unit to enter "set" mode.
Use the "Arrow" keys on the back of the unit to set the time, date, alarm or timer.