Rusty asked about what sensors would work with the EM2   Here is the story
on sensors as it applies to the EM2.

 The EM2 will include a basic set of sensors with the instrument.   I'll
update the website soon on which ones are included and which are optional.
The RTD Temperature and pressure sensors used with the EM2 are VDO sensors
which are as close to a standard as one can get and are widely available at
reasonable prices.  They are available in NPT and metric threads so they can
be installed directly into most applications without adapters.

There are also 8 other temperature sensor inputs.  4 J type thermocouple,
usually used for cylinder head temps (CHT) and 4 K type thermocouple used
for EGTs.  Obviously rotary flyers will not need all of these but the EM2
will be available in a Lycoming version as well.

Air data sensors (TAS, Altitude, VSI, & OAT) are included with the EM2.
Fuel gauge sensors are Stewart Warner as used in Van's Aircraft (not
included)

If you already have other type sensors, all is not lost.  An additional
feature on the EM2 is a calibration screen.  This is primarily to calibrate
the EM2 for greater accuracy than can be done with fixed calibration (sensor
do vary a bit) but it can also be used to calibrate for other sensors if
they are of the same type (RTD, linear voltage, etc).   I would still
recommend using the VDO sensors that the EM2 was designed with.

 If you are using an EC2 engine controller you do not need a fuel flow
sensor since the EM2 gets fuel flow infomation from the engine controller.
Lycoming drivers and carbureted rotaries will have to buy an optional Flo
Scan sensor.

 The picture of the EM2 on the website is already obsolete due to
improvements in display layout.  Some data is now provided in bargraph form
in addition to digital.  In some cases, analog more pilot friendly.

 There is lots more I could go into but if I don't get back to working on
programming, the EM2 won't be ready for its June introduction.  Several
builders ask "June what?"  Don't know yet but I'll be happy if it is June
30th.

 Dancing as fast as I can,

 Tracy
tcrook@rotaryaviation.com
www.rotaryaviation.com