--- product_id: 23879803 title: "34850 50 Amp Portable Surge Guard" brand: "technology research" price: "€ 3.39" currency: EUR in_stock: false reviews_count: 8 url: https://www.desertcart.pt/products/23879803-34850-50-amp-portable-surge-guard store_origin: PT region: Portugal --- # 3850 Joules surge defense Auto-reset on power restore Real-time LCD monitoring 34850 50 Amp Portable Surge Guard **Brand:** technology research **Price:** € 3.39 **Availability:** ❌ Out of Stock ## Summary > ⚡ Stay powered, stay protected — never miss a beat on the road! ## Quick Answers - **What is this?** 34850 50 Amp Portable Surge Guard by technology research - **How much does it cost?** € 3.39 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/23879803-34850-50-amp-portable-surge-guard) ## Best For - technology research enthusiasts ## Why This Product - Trusted technology research brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Clear LCD Display:** Easy-to-read English display keeps you informed about voltage, amps, and potential hazards in real time. - • **Compact & Portable:** Lightweight and sleek design fits seamlessly between your power pedestal and RV cord for effortless setup. - • **Instant Auto-Reset:** Automatically resets when power stabilizes—no manual intervention needed, hassle-free protection. - • **Smart Voltage Guard:** Built-in intelligence continuously scans for voltage irregularities and reverse polarity to keep you safe. - • **Double the Surge Power:** 3850 Joules of robust surge protection shields your RV from unexpected power spikes. ## Overview The 34850 50 Amp Portable Surge Guard by Technology Research offers advanced 3850 Joules surge protection with smart monitoring and automatic reset features. Designed for 50 Amp RVs, it safeguards against faulty park power, reverse polarity, and voltage spikes, all while providing real-time status updates via a clear LCD display. Compact and easy to use, it’s the essential power defense every modern traveler needs. ## Description The 50 Amp Surge Guard portable with LCD display offers more than twice the Joules of power surge protection than the previous model. Continuously monitors for voltage and amp draw and reverse polarity (miswired pedestal, elevated ground voltage). Compact and easy to use, they plug in between the power pedestal and the line cord to provide protection. Designed for all travel trailers, 5th wheels and motorhomes with 50 Amp service. ## Features - Protects RV from faulty park power - Built-in intelligence - Automatic reset on power restoration - LCD display (English) - 3850 Joules of power surge protection ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Technology Research | | Brand | Technology Research | | Model | 34850 | | Item Weight | 0.48 ounces | | Product Dimensions | 3.86 x 6 x 21.5 inches | | Item model number | 34850 | | Is Discontinued By Manufacturer | No | | Manufacturer Part Number | 34850 | | Special Features | Portable, Surge Protection | | Amperage | 50 Amps | | Voltage | 1.2E+2 Volts | ## Product Details - **Brand:** Technology Research - **Color:** white - **Total Power Outlets:** 6 - **Voltage:** 1.2E+2 Volts - **Special Feature:** Portable, Surge Protection ## Images ![34850 50 Amp Portable Surge Guard - Image 1](https://m.media-amazon.com/images/I/81YXQcq30RL.jpg) ![34850 50 Amp Portable Surge Guard - Image 2](https://m.media-amazon.com/images/I/71Tey9cW6YL.jpg) ![34850 50 Amp Portable Surge Guard - Image 3](https://m.media-amazon.com/images/I/71bfS4TZpvL.jpg) ![34850 50 Amp Portable Surge Guard - Image 4](https://m.media-amazon.com/images/I/81mmRMiOoHL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great surge protector! *by J***. on October 20, 2016* I have used this several times recently and I'm completely satisfied with the purchase. The unit works great and I feel more comfortable now knowing that the RV electronics are safe. I really like the display and the rugged T handles on the plug ends. The other feature I appreciate is the 128 second reset delay that protects from unstable utility power that can happen right after power restoration.The packaging from Amazon for these items needs improved however...I received my surge protector in a rather large box with minimal bubble wrap inside to protect the unit during shipment. The surge protector was not in any kind of packaging or wrapped up. It was loose and able to be "rattled" around inside the box.I guess this just goes to show how well built the surge protector is as there was no damage and it still worked fine.These units are pricey but consider the alternative of replacing all of the various electronic devices in your rig that could get "fried" during a surge. ### ⭐⭐⭐⭐⭐ Great Customer Service from Southwire *by D***1 on June 5, 2019* I purchased this unit and used it for2 months without an issueI did have it trip twice during that time, but it did what it was designed to do, it automatically reset and we got out power back. Then we were at a campground and left for the day we returned to our fithwheel to find we had no power but everyone else did. It was late so I didn't bother our neighbors. This unit cleared a surge but but self destructing to save our RV. I contacted Southwire and sent the unit to them with all requested information. Today less than two weeks later I have a replacement in hand. Very good experience, plus who knows what damage could have been done to our RV. Very much worth the money. ### ⭐⭐⭐⭐⭐ Saved our electrical equipment *by T***N on May 3, 2019* Bought one of these at the same time we purchased our fifth-wheeler a year ago. We’ve been connected to shore power in an RV park since July. At 3 a.m. today we had a lightning strike so close that my wife thought the trailer was on fire. We lost all power and I waited until daylight to check the power supply. What I found was a dead surge protector that had split on three sides with a blackened plug. When I plugged the RV directly into the power pole, everything came back on. I’m already shopping for another of these, grateful that our first one “took one for the team.” I shudder to think what damage there would be if the electrical system had been unprotected. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/23879803-34850-50-amp-portable-surge-guard](https://www.desertcart.pt/products/23879803-34850-50-amp-portable-surge-guard) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-04*