Highest Quality Products Coast to Coast

EMS-D120 Instrument Only, Super‐Bright Screen

EMS-D120 Instrument Only, Super‐Bright Screen

For Experimental Use Only

Item:   DYNON 566-001
Price: $2,170.00 
Item Qualifies for Free Ground Freight (48 States) on Orders Over $350
Add to Cart

EMS-D120 Engine Monitoring System, Instrument Only, Super‐Bright Screen

Choose the Install Package for your engine type from the list in Related Products Tab.

The EMS-D120 is a large screen Engine Monitoring System (EMS) that blends traditional analog gauges with newer digital technologies. The EMS-D120 replaces up to 16 different types of gauges which are displayed on a stunning 7” diagonal color screen. The sunlight-readable, color display and softkey menu system result in a user-friendly instrument that enhances overall safety and peace of mind.

What makes the EMS-D120 so powerful is its ability to continuously monitor up to 27 available sensor inputs that cover the engine, fuel and other miscellaneous systems and annunciate any abnormality immediately upon detection. This constant scan significantly reduces the pilots workload while providing a more thorough and consistent review.

A split-screen display environment provides pilots with an excellent overview of the system coupled with additional pages of auxiliary information all available upon demand. Each of the color graphic pages are designed to promote easy visual scanning for interpretation of the current measurements relative to their normal/abnormal operational limits.

Configurable Display

Unlike many other similar systems, Dynon's EMS-D120 is easy to setup while simultaneously supporting a high degree of configurability to accommodate a variety of different engines and pilot preferences. The default boot-up or start-up screen example depicted above contains two separate pages on a split-screen format. During the initial setup, installers determine which gauges are indicated, their operational ranges, and whether an alarm is manifested along with its behavior. Info Items may be added to present the specific needs of the particular engine, aircraft or pilots preferences.

This degree of engine specific and pilot preferential customization when combined with a multi-page type of display and pilot configured checklists all add up to provide a unique presentation tailored to fit almost any need.

Engines & Probes

Dynon offers a variety of probes to accompany the EMS-D120 instrument with very attractive package pricing. The probes offered by Dynon are optimized to support a variety of engines including Lycoming, Continental, Rotax, Jabiru, and ULPower. Probes may also be purchased individually to monitor other engine types not specifically accommodated for by Dynon's probe packages.

Airplanes with existing engine sensors may already be compatible with the Dynon EMS-D120 system. The EMS-D120 was designed with the intention of retrofitting some of the previously popular, non graphical systems like Grand Rapids EIS systems and Rocky Mountain Inc, Micro Monitors. While not 100% backward compatible, replacement costs are minimized to the extent possible. Please review the specifications and sensors charts on this website for additional detail

Engine Sensors  
EGT, Hose Clamp 1.00-1.75”, Jabiru           46
EGT, Hose Clamp 1.00– 2.25”4466     
CHT, Bayonet 3/8-24 UNF4466     
CHT, 12 mm Ring Terminal           46
MAP , 0-60 In Hg, 1/8” hose) 11111    
Oil Pressure, 1/8-27 NPT, 0-150 PSI1111     
Oil Temperature, 5/8-18 UNF1111     
Fuel Pressure, 1/8-27 NPT, 0-30 PSI, Carbureted 1 1 111
Fuel Pressure, 1/8-27 NPT, 0-80 PSI, Fuel Injected  1 1     
Carb Air Temperature, ¼-28 UNF , -50º to 150º 1 1      
Amps Shunt, 0 – 60 Amps 1111111
EGT, 2 cylinder, 6' long         1    
EGT/CHT, 4 cylinder, 6' long harness 11   1 
EGT/CHT, 6 cylinder, 6' long harness     11  1
Engine sensor main wire harness 1111111
Notes         ABB
A) Uses CHTs, Oil Temperature, Oil Pressure and RPM sensors supplied with the engine
B) Uses Oil Pressure and Oil Temperature sensors supplied with the engine
C) OAT Probes are included with SkyView SV-ADAHRS-200/201. They should be ordered separately for D10/D100 Series EFIS and EMS instruments.

Items Supplied

Items supplied with each EMS-D120 include:

  • EMS-D120 Instrument
  • Mounting Tray
  • Installation Guide
  • Pilot User Manual


  • Engine Probe Kits
  • Fuel Flow Sensor
  • USB-Serial Converter
Chief Aircraft Logo

The best service and prices, with the largest inventory & fastest shipping. Serving aircaft owners, pilots & RC modellers for 30 years.

Grants Pass Airport
1301 Brookside Blvd. - Grants Pass, OR 97526
West Coast Store: Mon-Fri 7am-5pm Pacific Standard Time

Deland Airport
813A Flightline Blvd. Ste. 1 - Deland, FL 32724
East Coast Store: Mon-Fri 8:30am-5:30pm, Eastern Standard Time

Secure Card Transactions

USA ePay

Chief's Secure Ordering

Online Orders:Our Site is Secure!
Aircraft / Avionics Orders:(800) 447-3408
Radio Control Orders:(877) 219-4489
24 Hour Fax:(541) 479-4431
Master Card Logo Visa Logo American Express Logo Discover Logo

Chief's Customer Service

Customer Service: (800) 447-3408

Customer Service Request Form

Customer Service Info

Business Hours

E-mail & Phone Numbers