SKU: 8213294900
electron gear

electron gear ELECTRON RETRACTS SMARTBOX

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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

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Description

electron gear ELECTRON RETRACTS SMARTBOXELECTRON RETRACTS SMARTBOX SmartBox IMPORTANT: Using an incorrect controller type will damage your Electron retracts and void the warranty. It is the customer's responsibility to ensure the correct retract controller type is selected. Please contact Electron at: info@electron retracts. com and provide your retract serial number to ensure you select the correct type. The smart choice for those who want more. Everything that has to do with your landing

ELECTRON RETRACTS SMARTBOX 

SmartBox

IMPORTANT: Using an incorrect controller type will damage your Electron retracts and void the warranty. It is the customer's responsibility to ensure the correct retract controller type is selected. Please contact Electron at:  [email protected] and provide your retract serial number to ensure you select the correct type.  

 

The smart choice for those who want more.

Everything that has to do with your landing gear, controlled by one device only. The SmartBox allows full control over your retracts and gear doors. If you want it all, this is your choice.

Compatible with ER-30, ER-40, ER-50 retracts (eVo, Classic & NG); brakes and servo motors / linear actuators for gear doors.

  • INTUITIVE  COLOR TOUCH SCREEN: Setting up your landing gear has never been easier. Navigate through comprehensive and colorful menus with the touchscreen to configure and adjust your system to suit your needs.
  • GYRO ASSIST & SPECIAL BRAKING:  Set up the integrated gyro to assist on takeoff and then straight braking on landing, as well as optionally use the different ABS settings.
  • GEAR SEQUENCER: Our powerful sequencer allows you to set up the retract and door sequence with full control over all aspects. The timings for door opening and closing can be adjusted individually for each of the 8 protected door outputs, adding 50 sequencer steps; your imagination is the limit!
  • COMPATIBILITY GUARANTEED:  Electronics evolve, and so do working voltages. And that is why the SmartBox has two battery inputs. If your door servos need a voltage different from your retract, you can use a second battery just for them.
  • ALWAYS UP TO DATE:  With the Electron Retracts desktop App, you can easily update your controller with the latest firmware and newest features.


FAQ SMARTBOX

RETRACTS
  • Can I use a 2S battery with ER-50 NG retracts?

ER-50 NG retracts are rated for 3S LiPo voltage. Therefore, the battery that you have to connect to the retract unit controller should be a 3S battery.

With a 2S battery, the ER-50 NG retracts will work, but the speed and torque of the retraction will be reduced. Depending on the length and weight of the strut and the wheel, and other factors, the performance of the retract with a 2S battery could be enough to operate properly.

  • What retracts can be upgraded to a square thread SPINDLE?

All retracts purchased from January 2013. The serial number must start with 13, 14, 15, 16, etc (the first two digits indicate the manufacturing year)

  • Can I REVERSE the retract trunion, or change the RETRACTION ANGLE?

This is possible only in the “reversible version” of our retracts, released from January 2015 onwards. The indicative “reversible” is engraved next to the serial number.

  • What battery can I use with my retracts?

Electron suggests using a single small battery for retracts and brakes, and don't share the receiver or engine battery.

500-900 mAh will be enough for at least 25 flights, so with a very small battery, you will have enough power for a full flying day.

Wheels & Brakes

The BRAKES don't have enough POWER to stop my plane in the desired distance

Voltage increase: The last software for ER-30 and ER-40 allows for an increase in the voltage up to 13V (not for ER-50). With 3S LiPo, it is possible to increase the brake torque a little. Old control units can be updated with the new software: (contact us). Is possible to test the controller with a 3S LiPo to know if this controller accepts 13V. If not, the retracts simply will not run; nothing should burn. The ER-50 is limited to 10V for security, so only mechanical adjustments are possible. 


TECHNICALSPECIFICATIONS

SmartBox

Weight 80 g
Weight with screen 155 g
Dimensions 81 x 61 x 16,5 mm
Screen dimensions 78 x 56,5 x 12,4 mm
Input Voltage BATT 1 Check the voltage required for your retract
Input Voltage BATT 2 Up to 13 V
Inputs • GEAR signal input (PWM)
• BRAKE signal input (PWM)
• STEERING signal input (PWM)
• 2x Battery Input (XT-30 male socket)
Outputs • USB-C port (for PC connection)
• 3x Retract outputs (XT-30 female socket)
• 2x Brake outputs (JR-servo female socket)
• 1x Steering Servo output (JR- servo female socket)
• 8x Door outputs (JR-servo female socket)
• Screen output (USB-C socket)
Max. current per retract output 7 A (Peak: 10 A)
Max. current per brake output 6 A
Max. current per door output 5 A
Steering Servo max. current output 6 A
Temperature range -10°C to +85°C

What's in the box?

1x SmartBox programmed for the indicated retract type and serial number.

1x Color touch screen with cable.

3x Retract cables compatible with SmartBox

If you have any additional questions, our dedicated support team can offer assistance at any point of your build or setup, as well as answer any queries along the way.

Installation Manual


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 8213294900

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4.8 ★★★★★
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Matthew
Charlottesville, US
★★★★★ 4
Fun, but buy a couple of them
Style: Original, Style: Original
She loves them. Great toy, but the product can’t hold up- purchased 4-11-2026
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
K
Verified Purchase
Kay Cee
Lexington, US
★★★★★ 5
Durable, Rugged, Dog Approved Fun!!
Style: Original, Style: Original
This thing is durable and worth every penny! I bought this over 5 years ago for my rescue and he STILL loves it. He plays with it near daily and it's got a LOT of love-work scrapes, scratches, and scuffs. But it still works perfectly!! Because he's on the medium side, he can't quite bite down on it. Not sure how it'd hold up to heavy chewers with larger mouths. But he can play with this solo for ages and has SO MUCH fun. We love to listen to his "conversations" as he gets into it with this ball. It's been a winner since the day we took it out of the box. It's also the longest lasting toy we still have! Everything else either wore out, was destroyed, or broke. This battery-free ball has made the cut for us.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026
S
Verified Purchase
Stephanie
Lowell, US
★★★★★ 3
Lasted a day for my dog
Style: Original, Style: Original
My dog absolutely loved this toy, but sadly it didn’t even last a full day 😩 I’m not sure if that’s because I have a Rottweiler/Lab mix with the jaw strength of a tiny excavator, or if the durability just isn’t great. Within a few hours, he had already torn right through it 🥲 That said, the sound it makes had us cracking up and definitely kept my dog entertained and intrigued while it lasted!
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Reviewed in the United States on May 27, 2026
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Verified Purchase
Pagan
Lake Worth, US
★★★★★ 5
Great toy!!!
Style: Original
My dog went mental over this ball!!! She will let me roll it through the backyard or in the house and she will go nuts for it but the great part, she will play by herself with this ball. She will roll it and jump on it and just have a blast. Since this is not a normal chew toy, my dog's big, she only gets it when I'm with her. It kind of makes it our special thing when I pull it out. We play every day with it and her enthusiasm has never lessened. She can be in another room when I take it out of the cabinet and the second she hears it, she will run into walls in her rush to get to me so we can play! It really is better than just throwing a ball back and forth. She's completely engaged the entire time it's out. I highly recommend it but just know it's not a normal toy that you can just throw to your dog and walk away. It is an amazing toy to help you bond with your pet.
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Reviewed in the United States on May 6, 2026
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Russell Jones
Alexandria, US
★★★★★ 5
Great for dogs that need to stay busy
Style: Original
My dog absolutely loves this ball. It is a little noisy so we take it out in the yard and let her play with it there. I highly recommend it if you have a dog that get bored easily. This will surely keep them busy.
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Reviewed in the United States on April 14, 2026

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