MarS a.s. have been developing AADs with more benefits since 1999.
The m² multi is an electronic automatic activation device, operating on the principle of pressure reading. The primary means of detecting the altitude and fall rate is a pressure sensor. The altitude is calculated based on the difference between the two atmospheric pressures. The pressure at current altitude and pressure on landing location “GROUND ZERO”.
The pressure on the landing location is measured and set after switching on the device during calibration. This pressure is automatically adjusted by a change in barometric pressure during the day without the need for user intervention. The m² multi checks the ambient barometric pressure every 32 seconds and it determines whether the aircraft has taken off. If yes, it begins to monitor the skydiver’s altitude and fall rate. The pressure sensor measures the atmospheric pressure 8 x per second in free fall.
The information collected is evaluated by means of a microprocessor and ingenious software and it is converted to a real fall rate and altitude. Thanks to this, the m² multi-device is capable of meeting the preset criteria of fall rate in combination with altitude above the landing location, cut the reserve parachute closing loop by means of the cutter and thus initiate the deployment sequence.
The device is activated only in the case the preset criteria are met; the criteria differ depending on the set profiles – STUDENT (Stu), INTERMEDIATE (Int), PROFESSIONAL (Pro), CANOPY PILOTING (Cpi) and TANDEM (Tan)
The m2 is waterproof in both freshwater and saltwater at a depth of up to 2 meters for 24hours. It has a replaceable filter (replaced by your rigger) which must be changed if water reaches the filter itself.
Using X-Mode allows the user to 'step-up' the device mode e.g. from Expert to Speed mode. Note that X Mode is unavailable for Tandem set AADs.
The m2 doesn't require that you send it off for servicing or maintenance, and the battery is expected to last 15 years \ 15,000 jumps.
Gravity Index shows the user as a percentage how close the last jump came to activating the device. (Great for those wanting the reassurance when starting to swoop that it won't trigger during a high-performance turn)
All AADs are built to order. Lead time is around 10 days.
If you would like to see more details about the M2 AAD, please click the link to go to the manufacturers' website. (opens in a new window)