10Hz GPS Expander Module (GPS-V4)
New GPS Expander Module based on the latest GPS technology. Built-in LED which indicates 3D fix. Fast 10Hz update rate. Built-in battery backup for quick fixes.

Plugs into the Seagull/Recorder to provide live and/or recorded lat/lon, ground speed, GPS altitude, distance to pilot, course, UTC timestamp, and more. Integrated display/3D graphing software included in data system. WAAS and EGNOS compatible, built-in patch antenna. Click Here to view Instruction Manual

NEW: Video OSD Pro Expander (ETS-OSD-PRO)
Fly or race with video? The Eagle Tree OSD Pro Expander provides easy to display real time data over your existing video link.   Click here for details.

Brushless Motor RPM Sensor
Tiny sensor measures RPM by simply connecting a wire from one of your brushless electric motor leads to the sensor. This connection is just a tap (not inline) which simplifies installation.

Note:  REQUIRES Requires firmware level 4.XX or higher.   Click Here for Upgrade Info (PDF)

Additional Prandtl Pitot-Static Tube Kit (PITOT-KIT-V3)
Great for multiple models or as a replacement. Includes machined aluminum and brass pitot tube, and approx 3' (one meter) of small diameter silicone hose.

Electric Expander - 100 Amp (ELEC-EXP-100)
Measures motor battery pack current and voltage.
Electric Expander Specifications:
Pack Voltage: 0 to 50V
Pack Current: 0 to 100 Amps, in approx 50 mA increments
Click here to view Instruction Manual (PDF)

Click here for info on using more than one Electric Expander at the same time.

Electric Expander - 140 Amp (ELEC-EXP-140)
Measures motor battery pack current and voltage.
Electric Expander Specifications:
Pack Voltage: 0 to 50V
Pack Current: 0 to 140 Amps, in approx 70mA increments
Click here to view Instruction Manual (PDF)

Click here for info on using more than one Electric Expander at the same time.

Electric Expander - 300 Amp (ELEC-EXP-300)
Measures motor battery pack current and voltage.
Electric Expander Specifications:
Pack Current: 0 to 300 Amps, in approx 150 mA increments
Pack Voltage: 0 to 50V
Click here to view Instruction Manual (PDF)

NEW: Servo Current Logger (SERVO-CURR-LOG)
Find out how much current one or more of your servos or other low current devices are drawing. Plugs into your Recorder and servo (or receiver battery/BEC) to log current from 0-5 Amps continuous, with 0.01 Amp resolution.

NEW: Spektrum/JR (TM) Interface Cable (CAB-SPEK)
Now use your Seagull/Data Recorder to see Spektrum/ JR Rx holds/failsafes, lost frames, and antenna fades (up to 4 antennas) on your Dashboard, or logged for later review!

Connects between your Spektrum "FlightLog" data port and the Data Recorder's GPS port. Use a servo Y cable to use your FlightLog display simultaneously! NOTES: make sure your RX has the data port before ordering. Also, note that this cable cannot presently be used at the same time as our GPS module! Click Here to view Instruction Manual

High Voltage Measurement Option - 70 Volts (HIGH-VOLT-OPT)
This option increases your recorder measurement cabability to 70V, when used with one of our Electric Expanders below.
When this option is selected with your Recorder or Seagull order, we will modify the Recorder for this option. Or, if you have already purchased your Recorder/Seagull, the Recorder must be returned to us to have this option implemented.

Thermocouple Expander with Exhaust Gas Probe (THERM-EXP-EGT)
Thermocouple Expander supports two type K thermocouple probes. Includes EGT thermocouple probe with compression fitting, for measuring up to 2000 degrees F.
Click to view Instruction Manual (PDF)

Click here for info on using more than one Thermocouple Expander at the same time.

Thermocouple Expander with CHT Probe Kit (THERM-EXP-CHT)
Thermocouple Expander supports two two type K thermocouple probes. Includes CHT probe kit for use with OS #8 and 10mm plugs.
Click to view Instruction Manual (PDF)

Click here for info on using more than one Thermocouple Expander at the same time.

Exhaust Gas Temperature Thermocouple Probe Kit (TEMP-EGT)
Requires our Thermocouple Expander Board above. Up to two Thermocouple probes can be plugged into the Expander simultaneously.

Cylinder Head Temperature Thermocouple Probe Kit (TEMP-RINGS)
CHT probe kit for use with OS #8 and 10mm plugs. Requires our Thermocouple Expander Board above. Up to two Thermocouple probes can be plugged into the Expander simultaneously.

G-Force Expander (GFORCE-38)
Measures dual axis acceleration and G-force up to +/- 38 G's.
Click here to view Instruction Manual (PDF)

Click here for info on using more than one G-Force Expander at the same time.

Set of 4 Custom Y cables (CAB-Y)

Used for connecting your Recorder between your RX and Servos, for Servo monitoring.

Note:  REQUIRES firmware level 4.XX or higher.   Click Here for Upgrade Info (PDF)

NEW: High Gain 900 MHz Yagi Antenna for Dashboard (YAGI-9DBI)
Wireless link range can be doubled, tripled or more with our 9dBi directional Yagi antenna. Includes 18" coax cable with SMA connector. Antenna is 19.6" (0.5m) long, and weighs 1.5 lbs (0.7kg) with removable mounting bracket. NOTE: requires "SMA Connector" option on dashboard - order above.

NEW: RCA to Servo Connector Adapter Cable for OSD Expander
Useful if your video equipment uses RCA plugs. Two are needed if both your camera and video transmitter use RCA.

External Active Antenna for GPS Expander Module (GPS-ANT)
This tiny external antenna is great if you need to mount your GPS Expander under carbon fiber, or in other "RF challenging" locations. The Expander will pick between the strongest of the two signals (from the built-in antenna or this External Antenna) which can improve reception if your model is upside down, etc. Includes cable with MMCX jack. NOTE: the antenna is NOT compatible with our older GPS modules, or our new GPS-V4 module. These do not have the gold MMCX external antenna connector!