--- product_id: 10938836 title: "Instruments CS550A Circuit Breaker Finder, Quickly Locate AC Circuits/Fuses, Visual LED, Plug Style Transmitter/Auto-Sensing Receiver, 120V AC, Yellow" brand: "sperry" price: "39291CFA" currency: XOF in_stock: true category: "Sperry" url: https://www.desertcart.sn/products/10938836-instruments-cs550a-circuit-breaker-finder-quickly-locate-ac-circuits-fuses store_origin: SN region: Senegal --- # 120V AC operation Battery powered (9V) Bright LED & audible alerts Instruments CS550A Circuit Breaker Finder, Quickly Locate AC Circuits/Fuses, Visual LED, Plug Style Transmitter/Auto-Sensing Receiver, 120V AC, Yellow **Brand:** sperry **Price:** 39291CFA **Availability:** ✅ In Stock ## Summary > ⚡ Find your circuit, fast — because downtime is so last decade! ## Quick Answers - **What is this?** Instruments CS550A Circuit Breaker Finder, Quickly Locate AC Circuits/Fuses, Visual LED, Plug Style Transmitter/Auto-Sensing Receiver, 120V AC, Yellow by sperry - **How much does it cost?** 39291CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/10938836-instruments-cs550a-circuit-breaker-finder-quickly-locate-ac-circuits-fuses) ## Best For - sperry enthusiasts ## Why This Product - Trusted sperry brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual Alert System:** Visual LED and audible signals guarantee you never miss a beat - • **Plug & Play Simplicity:** Compact transmitter and auto-sensing receiver make setup effortless - • **UL Certified Reliability:** Built to meet US and Canadian safety standards for peace of mind - • **Safe Around Sensitive Tech:** Non-intrusive design ensures zero interference with delicate electronics - • **Pinpoint Circuits Instantly:** Quickly identify the exact breaker or fuse without power interruption ## Overview The Sperry Instruments CS550A Circuit Breaker Finder is a UL-listed, battery-powered tool designed to quickly and safely identify AC circuits and fuses at 120V. Featuring a plug-style transmitter and auto-sensing receiver, it delivers both bright LED and audible alerts without interrupting power or interfering with sensitive electronics, making it an essential device for efficient electrical troubleshooting. ## Description Product Description Sperry Instruments CS550A Circuit Breaker Finder, Quickly Locate AC Circuits/Fuses, Visual LED, Plug Style Transmitter/Auto-Sensing Receiver, 120V AC, Yellow From the Manufacturer Circuit Breaker Finder. By using a transmitter and receiver, this circuit breaker finder quickly and easily identifies individual branch circuits at the panel box without interrupting power. It is the best way to accurately locate circuit breakers. They are compact in size and extremely easy to use. UL listed to both US and Canadian standards. Locates AC Breakers or Fuses. No need to interrupt Power. Distinctive Signal, Audible and Visual Indication. Does not interfere with sensitive electronic equipment. Uses one 9V battery not included. Includes one transmitter and one receiver. ## Features - QUICKLY AND EASILY: identifies correct circuit breaker or fuse protecting a specific electrical circuit - SAFE FOR USE NEAR: Sensitive electronic equipment and no need to interrupt power when using - INCLUDES: A plug style transmitter and an auto sensing receiver - AUDIBLE ALERT AND BRIGHT LED: Visual indication on both transmitter and receiver - DESIGNED FOR: Operation at 120V AC, 50-60Hz - UL Listed - Receiver operates from one 9 volt battery included.Audible alert and bright LED visual indication ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000ET403A | | Best Sellers Rank | #149,161 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #102 in Miniature Circuit Breakers | | Brand Name | SPERRY | | Color | Yellow | | Customer Reviews | 4.0 4.0 out of 5 stars (1,512) | | Global Trade Identification Number | 00035632106585 | | Included Components | Sperry Instruments CS550A Circuit Breaker Finder, Quickly Locate AC Circuits/Fuses, Visual LED, Plug Style Transmitter/Auto-Sensing Receiver, 80-140V | | Item Dimensions | 6.3 x 3.4 x 1.3 inches | | Item Type Name | Sperry Instruments CS550A Circuit Breaker Finder, Quickly Locate AC Circuits/Fuses, Visual LED, Plug Style Transmitter/Auto-Sensing Receiver, 80-140V | | Item Weight | 3.68 ounces | | Manufacturer | A.W. Sperry | | Model | CS550A | | Number of Items | 1 | | Part Number | CS550A | | Power Source | Battery Powered | | Specification Met | UL | | Style Name | Circuit Breaker Finder | | UPC | 035632104444 035632106585 | | Unit Count | 1 Count | | Warranty Description | Limited One Year Warranty | ## Product Details - **Brand:** SPERRY - **Color:** Yellow - **Item Weight:** 3.68 ounces - **Power Source:** Battery Powered - **Style:** Circuit Breaker Finder ## Images ![Instruments CS550A Circuit Breaker Finder, Quickly Locate AC Circuits/Fuses, Visual LED, Plug Style Transmitter/Auto-Sensing Receiver, 120V AC, Yellow - Image 1](https://m.media-amazon.com/images/I/61rPvHfzREL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - Sperry Instruments CS550A Circuit Breaker Finder, Quickly Locate AC Circuits/Fuses, Visual LED, Plug Style Transmitter/Auto-Sensing Receiver, 120V AC, Yellow - Sperry Instruments STK001 Non-Contact Voltage Tester (VD6504) & GFCI Outlet / Receptacle Tester (GFI6302) Kit, Electrical AC Voltage Detector, Yellow & Black --- ## 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.sn/products/10938836-instruments-cs550a-circuit-breaker-finder-quickly-locate-ac-circuits-fuses](https://www.desertcart.sn/products/10938836-instruments-cs550a-circuit-breaker-finder-quickly-locate-ac-circuits-fuses) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-09-23*