Members earn Double RC Club Rewards points when you pre-order select products
Free Shipping on orders over 99*. Learn More
  $219.99  $199.99
Add to Wish List
Backorder now to reserve your place in line! Next Shipment Late Aug

Spektrum Firma Smart Marine ESCs for boats and watercraft deliver power and intelligence all-in-one. Without added sensors or modules, they feed telemetry data straight to your radio in real time, keeping you more connected to your model than ever before


Image for Firma 160 Amp Smart Brushless Marine ESC from HorizonHobby
+ / - Hover over image to Zoom
Firma 160 Amp Smart Brushless Marine ESC Firma 160 Amp Smart Brushless Marine ESC Firma 160 Amp Smart Brushless Marine ESC Firma 160 Amp Smart Brushless Marine ESC Firma 160 Amp Smart Brushless Marine ESC Firma 160 Amp Smart Brushless Marine ESC
  • Overview
  • Specs
  • Reviews
  • Parts & Accessories
  • Manuals & Support
Smart Technology

Smart Technology — More connected for more confidence and control

Spektrum™ Smart Technology is about offering a higher connection to your hobby. It's an RC ecosystem that puts you in complete control while making vital components of your model easier to use than ever before. Smart technology ensures that all of your model's electronics work together seamlessly for the greatest efficiency and performance. It keeps you aware of every component's status, boosts your confidence in its capabilities, and makes your entire system more responsive and simple to use.

Spektrum radios with Smart features can download firmware updates instantly using Wi-Fi and can swap setups with compatible radios via Bluetooth. Spektrum Smart LiPo batteries have a built-in microchip that records and communicates your charging preferences automatically to Smart chargers — just connect your pack and press "Start." Smart IC™ series connectors include an innovative data wire that transfers information easily between Smart components with a single connection. Finally, Smart ESCs not only deliver power but also eliminate the hassles from running telemetry. The days of installing and connecting multiple wires, sensors, modules and links are over.


  • Smart all-in-one telemetry
  • Fast, powerful 32-bit ARM M4 processor
  • 160 Amp Continuous current, perfect for demanding high voltage setups
  • Up to 8S (29.6V) input voltage
  • Built in Series Connection with high heat resistant IC5 Connectors
  • No compromise waterproof design
  • Multiple water cooling jackets provide ample heat disbursement
  • Multiple options for easy programming:
    • Button programming
    • Smart ESC Programming Box
    • SmartLink USB Updating and Programmer application
  • Multi-point protection:
    • Over-current protection
    • Automatic LiPo low-voltage cutoff
    • Thermal protection
    • Failsafe protection
  • Compact for easy installation in most applications
  • Ready to install — no soldering required
  • Rugged plastic case with mounting tabs
  • Aluminum heat sink for high efficiency
  • Multiple water cooling inlets/outlets
  • High current 6V BEC
  • Firmware updatable through the Smart ESC Programming Box
  • High heat-resistant IC connectors, backwards compatible with EC connectors
  • Limited 1-year warranty
  • Developed and designed by Spektrum engineers, in partnership with the industry's leading ESC manufacturer


Like every component in the Spektrum Smart ecosystem, Firma Smart ESCs combine "plug-and-play" simplicity with the ability to communicate with other Smart electronics — together, creating the best-performing RC system for your vehicle imaginable.

Firma Smart ESCs do much more than regulate power. They function like a virtual engineer inside your model, providing a direct path to the vital operating data you need to reach peak performance. Firma Smart ESCs give you an extra layer of confidence that your electronics are all operating at their best.

With Firma Smart ESCs, you'll be better connected to your vehicle than ever before — without installing extra components that all work independently of each other. You won't need extra wires, modules, or links. A Firma electronic speed control provides a one-wire solution for obtaining telemetry data such as RPM, temperature, battery voltage and capacity.

Firma ESCs not only gather the data but also send it to your transmitter in real time, instead of only storing it for after-run study. You're able to adjust settings as needed to boost performance on the go. The Firma Smart single-wire telemetry solution has been tested for quality and performance by the best brands in RC. Their verdict? Smart technology is both simpler and superior!

Needed to Complete
  • Spektrum Surface Receiver
  • Spektrum Smart Technology LiPo Battery
  • Spektrum Transmitter
What's in the Box?
  • (1) Spektrum Firma Smart ESC
  • (1) Spektrum Smart Sticker sheet
  • (1) Product Manual

Video Overview

Spektrum Smart Technology Video Overview




The Firma Marine ESCs are extensively designed and tested to provide a water-tight seal when run in nearly any fresh water environment. Perfectly suited for RC boat applications in a large range of sizes and capabilities. Please note it is not recommended to run in salt water and ocean shore environments.




Firma ESCs feature IC series battery connectors. The IC series of connectors are designed from the ground up to provide a more solid connection, higher heat resistance, and effortless installation. When used with an IC3 or IC5 connector-equipped Spektrum Smart battery, the ESC can receive and transmit battery telemetry data. EC3 and EC5 are also compatible with Firma ESCs for basic operation and ESC telemetry.




No need to connect multiple wires, sensors, modules, and links. With Firma ESCs, simple one-wire telemetry transmits a wide range of data directly to your transmitter in real time, including RPM, voltage, temperature, balance, and capacity used*

*See compatibility chart for more information.




When used with a Spektrum Smart LiPo battery, your Firma ESC provides you with the benefit of battery telemetry that's automatically transmitted to your compatible Spektrum radio in real time. On your transmitter screen you'll be presented with helpful information such as number of cycles, battery capacity used and remaining, individual cell voltage and more!




Multiple programming options are available. Button programming can be used with nothing more needed. Using the Smart Firma ESC Programming Box, you can easily change settings at the track to suit driving conditions. An easy-to-use Smart Link USB Updating and PC Programmer app is also available.




The Firma ESCs' 32-bit M4 processor produces higher resolution signal input and more accurate motor output.

Auto Cutoff: Yes
BEC: Yes
BEC Continous Current: 8A
BEC Type: Switch mode
Battery Connector: IC5
Battery Input Lead: IC5, 10 AWG, length 7.9 in (200mm)
Brakes: No
Forward: Yes
Height: 1.4 in (35.5mm)
Input Voltage: 11.1 - 29.6V (3S -8S LiPo)
Length: 3.7 in (95.7mm)
Motor Connector: 6.5mm Bullet
Overload Protection: Yes
Programmable: Yes
Reverse: Yes
Type: Brushless marine ESC w/dual battery connectors
Weight: 9.9 oz (280g)
Width: 3.5 in (90.4mm)

Optional Accessories

$59.99  $54.99
In Stock
$34.99  $29.99
In Stock
In Stock
$99.99  $84.99
In Stock
$119.99  $109.99
In Stock
$109.99  $99.99
In Stock
$84.99  $74.99
In Stock
$7.99  $6.99
In Stock



Product Support Tips

Product Support

Technical questions about this Zenoah product should be directed to Horizon Hobby's Product Support Department:

Horizon Hobby, LLC.
ATTN: Product Support

2904 Research Road
Champaign, IL 61822

To Contact Product Support please email us at

Sales Support

If you would like to purchase this product, please go to the Store Locator or contact the Horizon Hobby Consumer Sales Department:

Horizon Hobby, LLC.
ATTN: Consumer Sales

2904 Research Road
Champaign, IL 61822