Altimeter TL-3524 is an altimeter with encoder in one. With the Altimeter, you can not only save weight by having two instruments in one but, in addition, it is also one of the first encoders that transmits the code immediately after the switch-on. In your Altimeter, you can easily set altitude that is to be kept - the instrument will inform you whether you are above or bellow this set altitude. You will be informed also on minimum descent altitude, approach, transition altitude, altitude with lack of oxygen etc. Using a PC and the program, which is a part of delivery, the Altimeter also enables you anytime to go through the history of measured values.