Etronix ET2070 Standard Digital Servo Waterproof 21.8kg 0.16s Metal Gear

Overview

The Etronix 21.8kg/0.16s Standard Digital Servo Metal Gear - Waterproof ET2070 is a reliable, high-performance digital servo designed for RC enthusiasts across the UK who demand durability and responsive steering control. Whether you're running a brushless RC car, upgrading a Traxxas model, or looking for a dependable servo for your ARRMA or FTX vehicle, this standard-sized servo delivers the strength and speed needed for competitive and recreational RC driving. With its waterproof construction, all-metal gear train and impressive torque output, the ET2070 stands out as exceptional value for money in the world of RC servos.

This servo is particularly popular among UK RC car enthusiasts because it offers genuine waterproof protection without compromise on performance. Many RC drivers face the challenge of finding a servo that can handle wet conditions whilst maintaining crisp, responsive steering inputs - the ET2070 solves both problems. The combination of 21.8kg-cm of torque and lightning-fast 0.16-second transit time at 6.0V means your RC model will respond immediately to your inputs, whether you're cornering hard on a circuit or navigating technical terrain.

Standard-sized servos like the ET2070 are the industry workhorse for RC applications, fitting into most RC car platforms without modification. Unlike oversized servos that can be difficult to mount, the ET2070's compact dimensions make it perfect for vehicles where space is at a premium. It's an ideal choice if you're upgrading from a stock servo on models like the Traxxas Rustler, Savage, or T-Maxx, or if you're building a ready-to-run RC car UK package that demands genuine quality components.

Key Features

• Waterproof Digital Servo Design — The ET2070 features full waterproof construction that protects the internal electronics from moisture, dirt and wet conditions, making it ideal for all-weather RC running without fear of water damage or performance degradation.
• Exceptional Torque Output — With 21.8kg-cm of torque at 6.0V, this servo delivers the strength needed to control large RC vehicles and handle high-stress steering applications, ensuring your vehicle responds reliably even under heavy load.
• Lightning-Fast Response Time — The 0.16-second transit time at 6.0V means your steering inputs are converted to physical movement almost instantaneously, delivering crisp, precise control that's essential for competitive RC driving and technical manoeuvres.
• All-Metal Gear Train — The servo features a complete metal gear train rather than plastic gears, which dramatically improves durability, reduces wear and extends the operational lifespan of the servo even under demanding driving conditions.
• Robust Metal and Plastic Case — The combination of metal and plastic case construction provides an excellent balance between weight savings and structural protection, keeping the servo lightweight while protecting internal components from impact damage.
• Standard Size Form Factor — The compact standard-size dimensions (40.5 x 20.2 x 38mm) and 58g weight ensure easy installation into virtually any RC car without requiring modifications to mounting brackets or servo bays, making it a direct replacement for existing servos.
• Complete Installation Kit Included — Every servo comes supplied with a full selection of servo horns, mounting rubber and all necessary mounting hardware, meaning you can install it immediately without purchasing additional accessories.
• 25T Servo Horn Compatibility — The ET2070 accepts standard 25T servo horns, including aluminium aftermarket options, giving you the flexibility to upgrade to lighter or more durable horn solutions as needed.
• Digital Control Technology — The digital servo circuitry provides superior accuracy and holding power compared to analogue servos, with improved linearity and reduced centre dead-band for more precise steering input.

Technical Performance

The Etronix ET2070 represents a sophisticated blend of engineering excellence and practical value. Operating at 6.0V with a maximum torque output of 21.8kg-cm, this digital servo delivers performance characteristics that place it firmly in the mid-to-high performance category for standard-sized RC servos used in RC car UK applications. The 0.16-second speed specification at 6.0V translates to exceptionally quick steering response - fast enough to handle rapid course corrections and smooth enough to provide controllable steering inputs during precision driving. The servo's all-metal gear construction is particularly significant from an engineering perspective; metal gears distribute load more evenly across tooth surfaces, generate less heat during operation, and resist the stripping and wear that can plague plastic gear alternatives. This engineering choice directly extends servo lifespan when used in high-torque applications common in brushless RC cars and powerful nitro vehicles. The compact standard-size dimensions of 40.5 x 20.2 x 38mm and lightweight 58g specification ensure the servo integrates seamlessly into most RC platforms without requiring structural modifications. The metal and plastic hybrid case construction provides optimal balance - the metal reinforcement protects critical components from impact whilst the plastic elements reduce overall weight. The waterproof sealing is particularly valuable for UK RC enthusiasts who frequently drive in variable weather conditions; the protection extends to all connector points and seal interfaces, ensuring the servo maintains electrical integrity even after exposure to water, mud and wet grass. These technical specifications work in concert to create a servo suitable for steering duty across a wide range of RC vehicles, from tight 1/10-scale buggies to larger 1/8-scale trucks and crawlers.

What's in the Box

• Etronix 21.8kg/0.16s Standard Digital Servo Metal Gear - Waterproof (ET2070)
• Selection of servo horns (multiple fitment options)
• Mounting rubber (vibration damping pads)
• Complete mounting hardware and fasteners

Frequently Asked Questions

• Will the Etronix ET2070 fit my Traxxas RC car or ARRMA RC vehicle? — Yes, the ET2070 is a standard-size servo that fits most RC cars manufactured by Traxxas, ARRMA, FTX and other major brands. It has been successfully used as an upgrade on models including the Traxxas Rustler, T-Maxx, E-Revo and similar platforms. However, some vehicles like the ARRMA Granite may require an optional servo saver for complete compatibility. Consult the Q&A section or contact our team for specific model compatibility.
• Is the Etronix ET2070 suitable for beginners to RC? — Absolutely. While the ET2070 delivers excellent performance characteristics, it's straightforward to install and use, making it perfect for beginners upgrading from stock servos. The included mounting hardware, servo horns and rubber pads mean you have everything needed for installation. The servo's responsive performance also makes learning steering control easier because your inputs are converted to physical movement very quickly and predictably.
• What battery voltage does this servo require? — The ET2070 is rated for 6.0V operation (NiMh batteries). It should always be operated at 6.0V through your receiver's BEC (Battery Elimination Circuit) or a dedicated servo power supply. Do not connect 7.2V or higher voltage directly to this servo, as it will cause damage. If using a brushless ESC with adjustable BEC output like the Hobbywing EZRUN series, ensure the BEC is set to 6.0V output.
• How does the Etronix ET2070 compare to other standard-size servos? — The ET2070 offers exceptional value by combining waterproof design, metal gears, fast response time (0.16s) and high torque (21.8kg-cm) at an accessible price point. Many competitors offer similar torque but lack waterproofing, or provide waterproofing with slower response times. The all-metal gear construction is a particular strength, as this feature is often reserved for premium-priced servos. For the price, the ET2070 punches well above its weight in terms of build quality and performance.
• Can I use an aluminium servo horn with this servo? — Yes, the ET2070 accepts standard 25T servo horns, including lightweight aluminium aftermarket options. This compatibility allows you to upgrade the servo horn if desired for reduced weight or increased durability, giving you flexibility to customise your setup.
• Is the ET2070 truly waterproof for wet RC running conditions? — Yes, the ET2070 features full waterproof construction that protects internal electronics from moisture, making it suitable for wet grass, shallow water and muddy conditions. However, it's important to note that whilst the servo is waterproof, the rest of your RC system (receiver, ESC, battery) should also be waterproof or protected for complete water resistance. Regular rinsing with fresh water after wet running is recommended to prevent salt corrosion and maintain long-term reliability.
• What is the difference between this digital servo and an analogue servo? — Digital servos use microprocessor-controlled electronics to provide several advantages over analogue servos. The ET2070's digital design delivers faster response times, smoother operation across its full range, better holding power under load, and improved linearity with reduced dead-band in the centre position. These characteristics make digital servos preferable for RC vehicles requiring precise, responsive steering control.
• Will this servo work with my radio system and receiver? — The ET2070 is a standard servo compatible with any RC radio transmitter and receiver combination that supports standard servo protocol. Whether you're using Spektrum, Futaba, Traxxas Tracer, FrSky or any other RC radio system, this servo will integrate seamlessly. Simply connect the servo's three-wire connector to your receiver's servo output channel.
• How heavy is the ET2070 and will it affect my RC car's weight distribution? — At just 58 grams, the ET2070 is very lightweight for its performance level. Most RC cars can accommodate standard servos without significant weight distribution issues, though installing the servo as centrally as possible and at approximately the same height as the vehicle's centre of gravity will optimise handling characteristics.
• Does the ET2070 come with everything I need to install it? — Yes, the servo comes with a comprehensive installation kit including multiple servo horns to suit different mounting configurations, rubber mounting pads that dampen vibration and reduce noise, and all necessary fasteners. You'll need a servo connector lead if your RC car doesn't already have one installed in the steering channel, but the servo itself is complete.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Etronix 21.8kg/ 0.16s Standard Digital Servo Metal Gear - Waterproof ET2070 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.