SKU: 52490755380

Happymodel Crux35 ELRS V3 Analog 4s Long Range Ultralight Drone

$90.73 $100.81
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Description

Happymodel Crux35 ELRS V3 Analog 4s Long Range Ultralight DroneThe new ELRS V3 version comes with CrazyF411 ELRS AIO flight controller built in UART ExpressLRS v3 receiver. CRUX35 is an ultra lightweight 3. 5Inch FPV Freestyle Drone, the weight of the whole drone is only 87g for the analog version and 108g for the digital HD version. The Crux35 series drone uses Happymodel EX1404 high efficiency motors and HQPROP 3. 5 inch three blade propeller to ensure the largest thrust to weight ratio under the most efficient

The new ELRS V3 version comes with CrazyF411 ELRS AIO flight controller built-in UART ExpressLRS v3 receiver.

CRUX35 is an ultra-lightweight 3.5Inch FPV Freestyle Drone, the weight of the whole drone is only 87g for the analog version and 108g for the digital HD version. The Crux35 series drone uses Happymodel EX1404 high-efficiency motors and HQPROP 3.5-inch three-blade propeller to ensure the largest thrust-to-weight ratio under the most efficient premise, which can bring you a smooth Freestyle flying experience.

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The analog version is equipped with CADDXFPV Ant camera. The receiver version can be SPI Express LRS or SPI Frsky (S-FHSS compatible) for choose. The version in this product listing is the ELRS receiver.

Key Features

  • Ultra-lightweight 3.5-inch BNF FPV Freestyle Drone
  • OVX303 5.8Ghz VTX
  • Integrated ExpressLRS SPI receiver
  • High efficiency EX1404 power system
  • Can be equipped with Naked Gopro or SMO4K
  • Support 3-4S battery 4S 750mah battery is recommended, maximum support 4S 1100mah

Specification

  • Brand: Happymodel
  • Model: Crux35 Analog / Crux35 HD
  • Wheelbase: 150mm
  • Weight: 87g ( Analog); 108g ( HD)
  • Size: 130mmx130mmx45mm(without propellers)
  • Version Optional: Analog / HD
  • Receiver optional: SPI ExpressLRS 2.4GHz / SPI Frsky D8/D16 (S-FHSS compatible)
  • Analog version Ant+OVX303 VTX
  • Flying time: 9min~15min 4s 750mah battery

Detailed Component Specifications

Motor Mode: EX1404
KV options: KV3500
Configu-ration:9N12P
Stator Diamter:14mm
Stator Length:4mm
Shaft Diameter: Φ1.5mm
Motor Dimension(Dia.*Len):Φ15mm*15mm
Weight:9g
Propellers Propeller Diameter: 3.5 inch
Pitch : 2
Blades : 3
Material : Poly Carbonate
Weight : 1.5g
Hub Diameter : 10mm
Hub Thickness:4.7mm
Shaft :1.9/1.5/1.9mm
Adaptor Rings : NO
Flight controller

(ELRS Version)

MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
Sensor: MPU-6000(SPI connection)
Mount pattern: 20x20 M2Size:32*28*9mmPower supply: 2-4S Lipo batteryBuilt-in 12A Blheli_s ESC eachBuilt-in Betaflight OSD(SPI Control)
Built-in SPI ExpressLRS 2.4GHz receiverBuilt-in 5V 1A BECFlight controller firmware target: CRAZYBEEF4SX1280
Flight controller

(Frsky version)

MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
Sensor: MPU-6000(SPI connection)
Board size: 28.5 * 28.5MM
Power supply: 2-4S battery input (DC 8V-17V)
Built-in 20A(each) Blheli_S 4in1 ESC Dshot600 ready
Built-in Frsky D8/D16 SPI receiverBuilt-in 2.4G Power Amplification
Built-in Betaflight OSD(SPI Control)
Built-in Current meter
Built-in 5V 1.5A BEC
Built-in voltage detectionFirmware target: MATEKF411RX
Onboard 4in1 ESC MCU upgraded to EFM8BB21
Power supply: 1S LiPo/LiPo HVCurrent: 5A continuous peak 6A (3 seconds)
Support BLHeliSuite programmable
Factory firmware: O_H_5_REV16_8.HEX
Default protocol: DSHOT300
Onboard SPI ExpressLRS 2.4GHz Receiver

(ELRS Receiver version)

Packet Rate option: 25Hz/50Hz/150Hz/250Hz/500Hz
RF Frequency: 2.4GHzAntenna : SMD antenna
Telemetry output Power: <12dBmReceiver protocol to flight controller: CRSFCould bind with Happymodel ES24TX , ES24TX Lite, ES24TX Slim and DIY 2.4GHz ELRS TX module
Onboard SPI Frsky 2.4GHz receiver (Frsky Receiver Version) SPI BUS receiver
Frsky D8/D16/EU-LBT/, Futaba S-FHSS switchable on Betaflight
Channels: 8ch/16chDual antenna
Failsafe support
No ground interference ( Transmitter and receiver 1 m from the ground): 400m
Caddx FPV Digital HD Camera Nebula Nano Kit

(Digital HD version)

Weight(camera included]: 24g

Antenna: 2.3g

Dimensions: Vista Kit 30×29×13mm

Camera 14×14×21mm

Operating Frequency: 5.725-5.850GHz

Transmitter Power[EIRP]: FCC/SRRC/MIC:<30dBm

CE:<14dBm

Min.latencylend-to-end) 720p 60fps:32ms

Max.Transmission Distance FcC/SRRC: 4km

CE:0.7km

lnput Power: 7.4-26.4V

Power Output: 25mW/200mW/500mW/700mw

Goggles : Work with DJl goggles

Camera Sensor: 1/3"CMOS

Lens: 2.1mm,f/2.1

Shutter: Rolling

shutterFOV: 142°(D);122°(H);75°(V)

LHCP antenna

Caddx ANT 1200tvl camera

(Analog version)

Image Sensor: 1/3" CMOS Sensor

Horizontal Resolution: 1200 TVL

TV System: NTSC or PAL

IMAGE: 16:9 or 4:3

Synchronization: Internal

Electronic Shutter: PAL: 1/50~100,000; NTSC: 1/60~100,000

S/N Ratio : >52dB (AGC OFF)

Video Output: CVBS

Lens: 1.8mm

Min. Illumination: [email protected]

Auto Gain Control: YES

BLC: YES

WDR: Global WDR

DNR: 3D DNR

Dimensions: 14*14mm(with bracket to 19*19mm)

Wide Power Input: DC 3.7-18V

Work Temperature: -20℃~+60℃

Weight: 2g (N.W.)

OVX303 5.8Ghz VTX

(Analog version)

Model: OVX303

Frequency: 5.8G 40CH

Transmitting Power: 0/RCE/25mw/100mw/300mw

Power supply: DC 5V

Current (5v): <650ma (300mw)

Weight: 1.5gram without antenna

Included

  • 1x Crux35 Frame
  • 1x Analog FPV Camera Caddx Ant
  • 1x Happymodel OVX303 5.8G analog VTX
  • 4x Happymodel EX1404 KV3500 brushless motor
  • 1x HQProp T3.5X2X3Grey (4cw+4ccw)
  • 1x Screw Driver
  • 1x Buckle for battery
  • 1x ELRS X1 flight controller

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: 52490755380

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Verified Purchase
Jessie V
Houston, US
★★★★★ 5
Reliable and durable, even in harsh conditions
Color: Black/Gray
This watch has served me very well. From Arctic waters to long distance races, it has held up to everything except one task I asked of it, which was my fault. This watch can handle repeated free dives to 12 ft deep. It cannot handle scuba diving at the same depth for an hour straight without needing to have the battery shorted to reset it. It fits well, lights up consistently and brightly enough to read without being blinding, keeps accurate time, and generally does everything I want it to.
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Reviewed in the United States on May 24, 2025
E
Verified Purchase
Enri
Waukegan, US
★★★★★ 5
Ten years of ownership…Thank you, Timex!
Color: Black, Size: One Size
Solid watch for everyday wear. I have worn this watch for over 10 years. I let a watch shop replace the battery about every 18 months. Other than the original band (which lasted 5 years) I have had zero problems. Still looks great, rugged and manly😇 Overall I recommend this watch for its value, reliability, simple clear design, legible hands in all light conditions. Great watch!!!
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Reviewed in the United States on February 13, 2026
G
Verified Purchase
Guadalupe Reyes
Los Angeles, US
★★★★★ 5
Solid Watch for Everyday Casual Wear
Color: Black, Size: One Size
I have purchased this item other times and I’m quite satisfied with wearing this watch everyday with casual wear. The size is just right not too small or large.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
B
Verified Purchase
BrianNH
Chelsea, US
★★★★★ 4
Nice simple effective inexpensive watch
Color: Black, Size: One Size
I just ordered my second one of these. They are cheap, keep good time, show me the date, and last a long time. My last one lasted over 10 years. The only thing wrong with the last one was that the battery needed replacement (I think it was only the second time it had needed a battery in all the years I had owned it) at the same time the band wore out and broke. Rather than buy a new battery plus a new band, I just got a new one. I am hard on watches, and this one stood up very well. I regularly shower and swim with it on, and no problems. It doesn't have a lot of functions I don't need, like stopwatch, multiple time zones, etc. I have found those things more of a bother than a benefit, because any time you bump the knob against something, the display changes and you're always pressing all the buttons multiple times just to get the simple info needed- like what time is it and what is the date DEC 2020 UPDATE - I am ordering another one of these. The last one, I bought in mid 2019. Early in 2020, the date function quit working. By the end of November, the whole thing quit working. I know it's not the battery, because the light still works. So I am reducing my review by one star, and we'll see how well a new one does. The watch before the current one lasted about 10 years, so getting only a little over a year out of the current one is not good. Perhaps the current one just wasn't as good as the previous ones. It's entirely possible that they keep making the same watch out of lesser and lesser materials and workmanship.
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Reviewed in the United States on November 21, 2016
A
Verified Purchase
Ann
New York, US
★★★★★ 5
Timex. Life is ticking.
Color: Black, Size: One Size
A family member is headed off to Navy boot camp and is required to have a watch-a black watch. But...it cannot be anything in the realm of, be like, or indeed be an Apple Watch. The search began for a simple timepiece. Economy was important since after the 8 weeks of boot camp ended, use of the current watch would be resumed. Enter Timex...(the world's largest manufacturer of watches and mechanical time fuses). During the Amazon search there were all manner of economically (actually cheap) watches noted to be available, so many that it was simply overwhelming. Timex...tried and true since 1854 (just a fun fact, but actually attests to the quality of the company) was the chosen one. A simple but reliable timepiece was required, and certain qualifications were needed. First, it had to be an accurate time keeper and have a second hand, and have a date indicator. Secondly, there had to be an element of water resistance (this is Navy boot camp after all, so water is important!). Thirdly, it had to be black. Fourth, no bells or whistles whatsoever. Finally, a face with 24 hour/military time would be a bonus. This Timex Rugged Core Expedition Analog Watch fit the bill. Upon arrival it was packaged in a traditionally square box the size of the watch, no frills but sturdy enough to ward off damage during shipping. Once opened the first thing noticed was the face of the watch. It was black, with white numerals in both standard and 24 hour/military time, had a red second hand, luminescent hour and minute hands, and date indicator. The nylon band was also black, had ridges, and had a fastener like a belt. At the end of the band were two extrusions which seemed to lock the excess band into place once it was fastened. After wearing a number of days, the watch has kept excellent time matching the Apple Watch. Both watches were worn on the same arm at the same during the day and during sleep. They were worn during regular daily activities, during exercise and during strenuous garden work such as hauling, digging holes, dragging 40 lb bags, etc. Time was checked multiple times per day, and the time on each watch was exactly the same every time checked. The Timex was water resistant during a 5 minute shower and while submerged water. This is not a dive watch but, according to the ad, is water resistant to 50 feet for light swimming. The performance of this watch has been more than satisfactory executing in stellar fashion everything it was stated to be able to do. I can recommend this watch for boot camp purposes without reservation. Top 3 Likes: -Reliable keeping accurate time, has military time numerals -Is water resistant as tested -Is black, attractive with luminescent hands, second hand, date, and light up face Top 3 Dislikes: -The band is stiff and somewhat difficult to latch -The two little extrusions do anchor the band, but are difficult to undo to take off the watch -Only two dislikes!
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Reviewed in the United States on September 28, 2024

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