Electro-luminescent backlight.
Hearth rate monitor
Range 20 to 240 beats per minute.
Heart rate transmitter belt included.
Compatible with all Polar transmitter belts.
Training time, maximum, minimum and average heart rate, as well as time spent in, above and below the target zone during training.
Altimeter:Range: -500 / +9000 m, rsp. -1600 .. +29500 feet . Resolution : 5 m, rsp. 10 feet
Measures the current vertical ascent or descent speed. Performs one measuring per second for the first three minutes and then one measuring every ten seconds.
Altitude alarm .
Altitude difference measuring .
Automatic measuring of the altitude and the current vertical speed every hour for the last 24 hours.
Log feature stores the following information: Date and time, Average vertical ascent speed and total ascent ,Average vertical descent speed and total descent and Number of labs (a new lap starts after a decent of at least 50 m, rsp. 150 feet while ascending or vise a versa).
Barometer: Range: 300 - 1100 mBar, rsp. 8.90 - 32.40 inHg.
Resolution: 1 mBar, rsp. 0.05 inHg .
Adjustable pressure on sea level.
Automatic hourly measuring for trend analysis .
Automatic 4-day logging with hourly measurings for the last 6 hours, after that one measuring every 6 hours.
Pressure difference measuring .
Temperature:: Temperature range: -20 - +60°C, rsp. -5 - +140°F.
Digital Compass:
Heading in degrees and in clear text.
Continuously updated.
Shows deviation from pre-set direction.
Water eye for level control .
Stopwatch.
Count down.
3 daily alarms.
Resin case and band.
Dimensions:
Length: 60 mm. (2,31 inches).
Wide: 52 mm (2 inches).
Diameter: 52 mm (2 inches).
Height: 16 mm (0.63 inches).
Weight: 52 g (1.8 ounces).
Warranty: 2 years.
You can see Instruction manual (PDF) here