--- product_id: 8242293 title: "Ramsey SG7 Speedy Personal Speed Radar Kit" brand: "ramsey" price: "NT$581" currency: TWD in_stock: false reviews_count: 4 url: https://www.desertcart.tw/products/8242293-ramsey-sg7-speedy-personal-speed-radar-kit store_origin: TW region: Taiwan --- # Direct speed readout in MPH, KPH, or ft/s DIY electronic kit with easy assembly 1/8 mile range for car-sized objects Ramsey SG7 Speedy Personal Speed Radar Kit **Brand:** ramsey **Price:** NT$581 **Availability:** ❌ Out of Stock ## Summary > 🚀 Own the speed game with the ultimate DIY radar kit! ## Quick Answers - **What is this?** Ramsey SG7 Speedy Personal Speed Radar Kit by ramsey - **How much does it cost?** NT$581 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/8242293-ramsey-sg7-speedy-personal-speed-radar-kit) ## Best For - ramsey enthusiasts ## Why This Product - Trusted ramsey brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Multi-unit speed display:** Switch effortlessly between MPH, KPH, or feet per second for ultimate versatility. - • **Build it, learn it, own it:** Step-by-step manual demystifies radar tech while you assemble a sleek, professional device. - • **Remote antenna flexibility:** Place your antenna up to 300 feet away using everyday coffee cans for a custom setup. - • **Hear the Doppler effect live:** Plug in headphones and listen to the real-time frequency shifts of moving objects. - • **Be the radar cop everyone envies:** Clock speeds of cars, bikes, runners, and more with pro-grade accuracy. ## Overview The Ramsey SG7 Speedy Personal Speed Radar Kit is a hands-on electronic kit that lets you measure the speed of virtually anything moving within a 1/8 mile range. Featuring dual LED displays with selectable units (MPH, KPH, ft/s), an earphone output to hear Doppler shifts, and a remote antenna option up to 300 feet, it combines educational value with practical fun. Packaged in a sleek black ABS case, it operates on 12V DC and is perfect for science enthusiasts and speed aficionados alike. ## Description Here's a kit that's not only tons of fun for everyone, but useful too! This low cost microwave radar uses the same principle found in police units costing thousands more. You'll turn heads when you clock cars, planes, runners, boats, horses, bikes, races or virtually anything that moves. Speed readout is on two LED displays which can be set accurately (better than 1%) to show MPH, kilometers-per-hour, or even feet-per-second. An earphone output allows you to actually hear the Doppler frequency shift of moving objects - the theory upon which all radars operate. Uses two 13 oz. coffee or juice cans for antenna (not included)... so start drinking! Antenna unit can be remoted up to 300 feet away. The SG7 is easy and informative to build. Our detailed manual not only carefully guides you to a finished unit, but tells you the hows and whys of Doppler radar. Even though the kit employs microwave circuitry, no exotic tuning is needed. All critical sections are PCB stripline and calibration is as easy as pointing the SG7 at a fluorescent lamp! Your Speedy kit includes a deluxe black ABS plastic case with SPEEDY graphics for a neat professional look. Operates on 12 VDC. Order our AC125 AC Power Supply for a quick plug-in. Electronics case: 3 5/8 x 5 3/4 x 1 1/8 . Review: I love Ramsey kits - I love Ramsey kits, but this is based on using a certain sized TIN coffee can. Couldn't find a TIN coffee can. Review: Periodically they clear it of any bad reports on this piece of crap so people will ... - Total junk, Impossible to build exactly right to get to work unless your a electronics expert. Their own site which has a forum has many people who say the same thing having tried to get these things to work which they never do and asking for help which they never get. Periodically they clear it of any bad reports on this piece of crap so people will keep buying it. ## Features - YOU be the cop! Clock cars, bikes, people... ANYTHING THAT MOVES! - Direct readout in miles/hour, kilometers/hour or feet/second - 1/8 mile range for average car-sized object - The nation's #1 science fair project! - Electronic kit, assembly required ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002NRL7K | | Brand | Ramsey | | Customer Reviews | 2.8 out of 5 stars 4 Reviews | | Display Type | LED | | Item Weight | 11.2 ounces | | Manufacturer | Ramsey Electronics | | Mfr Part Number | SG7 | | Power Source | Corded Electric | | UPC | 871183001272 | | Voltage | 12 Volts | ## Product Details - **Brand:** Ramsey - **Display Type:** LED - **Power Source:** Corded Electric - **UPC:** 871183001272 - **Voltage:** 12 Volts ## Images ![Ramsey SG7 Speedy Personal Speed Radar Kit - Image 1](https://m.media-amazon.com/images/I/41RHSKNCQFL.jpg) ## Customer Reviews ### ⭐⭐⭐ I love Ramsey kits *by G***R on January 25, 2017* I love Ramsey kits, but this is based on using a certain sized TIN coffee can. Couldn't find a TIN coffee can. ### ⭐ Periodically they clear it of any bad reports on this piece of crap so people will ... *by &***; on July 16, 2015* Total junk, Impossible to build exactly right to get to work unless your a electronics expert. Their own site which has a forum has many people who say the same thing having tried to get these things to work which they never do and asking for help which they never get. Periodically they clear it of any bad reports on this piece of crap so people will keep buying it. ### ⭐⭐ Not for the casual builder *by P***O on June 4, 2011* soldered it up ok, main board was easy. but it was a challenge closing the small board with the RF parts. Got it working but thought it would be a little more versatile. Wished it came with a power supply or battery pack holder. --- ## 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.tw/products/8242293-ramsey-sg7-speedy-personal-speed-radar-kit](https://www.desertcart.tw/products/8242293-ramsey-sg7-speedy-personal-speed-radar-kit) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-09-03*