this is a used trekguide in very good used condition......only light scratch lines on the screen seen in the glare or under magnification....comes with 2 different sized lanyards.....has working batteries....there is not an on off switch.....so you will need to have spares available........but these last a long time.. 2 cr2032 lithium batteries......found the following description that gives a lot of information..........
DescriptionThe TrekGuide Digital Compass (Yellow) from Celestron provides degrees, a north pointing arrow and cardinal point readings. The compass has a range of 0° To 359° with 1-16 graphical pointers. There is even a magnetic declination angle adjustable for regions with magnetic variation. The built-in altimeter measures the altitude in either meters or feet; your choice. The Barometer measures the (air) pressure and sea level in mbar/hpPa, mmHG or inHG; again your choice. There are sunny, slightly cloudy, cloudy and rainy icons for the weather forecast. Current time and date, an alarm clock, a built in thermometer with either Celsius or Fahrenheit scales, a backlight, and a bubble level make this compass a multi-purpose tool that you won't want to be without on the hiking trail or hunting. It comes with a lanyard and 2 included CR2032 lithium batteries.
Digital Compass function provides degree, north pointing arrow and cardinal point readings
Compass Range of 0° To 359° with 1-16 graphical pointers
Adjustable magnetic declination angle for regions with magnetic variation
Built-in altimeter measures altitude in either meters or feet
Barometer (air) pressure and sea level pressure measurement available in mbar/hpPa, mmHG or inHG
Weather forecast icons: sunny, slightly cloudy, cloudy and rainy so you'll know what the weathers going to be
Time and Date, Alarm Clock to make sure that you won't oversleep on the trail and miss that important Monday morning meeting at the office
Temperature reading in °Celsius or °Fahrenheit
Backlight for reading in low light. Bubble level to keep you straight
Water resistant.....................all intl shipping will be refunded to the lowest price with tracking for your country.......if possible........send a message for an exact quote.........many countries are $10 to $15.........