--- product_id: 570087844 title: "Supco Tradefox Jumper King Bypass Low Voltage Thermostat to Activate The Circuit" brand: "supco" price: "R3315" currency: ZAR in_stock: true category: "Supco" url: https://www.desertcart.co.za/products/570087844-supco-tradefox-jumper-king-bypass-low-voltage-thermostat-to-activate store_origin: ZA region: South Africa --- # 0–30V low voltage range 20 interchangeable adapter tips Built-in resettable fuse protection Supco Tradefox Jumper King Bypass Low Voltage Thermostat to Activate The Circuit **Brand:** supco **Price:** R3315 **Availability:** ✅ In Stock ## Summary > ⚡ Master HVAC diagnostics with the ultimate jumper kit—never miss a beat! ## Quick Answers - **What is this?** Supco Tradefox Jumper King Bypass Low Voltage Thermostat to Activate The Circuit by supco - **How much does it cost?** R3315 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/570087844-supco-tradefox-jumper-king-bypass-low-voltage-thermostat-to-activate) ## Best For - supco enthusiasts ## Why This Product - Trusted supco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Organized On-the-Go:** Durable zip-up EVA case keeps your tools ready for action - • **Versatile Adapter Kit:** 20 magnetic, alligator, spade & insulation tips for every scenario - • **Safe & Reliable Testing:** Resettable fuse prevents shorts—no batteries needed - • **Multi-Stage & Heat Pump Ready:** Works seamlessly on complex HVAC systems - • **Instant HVAC Circuit Activation:** Bypass thermostats fast to troubleshoot like a pro ## Overview The Supco Tradefox Jumper King is a compact, professional-grade low voltage thermostat bypass tool designed for HVAC technicians. It supports 0–30V circuits, includes 20 interchangeable adapters for versatile testing, features a resettable fuse for safety, and comes in a rugged zip-up case for organized field use. Ideal for fast troubleshooting of compressors, relays, and thermostat circuits on multi-stage and heat pump systems. ## Description Supco Tradefox's Jumper King Multi Jumper with Selector One hookup allows you to safely bypass any low voltage thermostat and activate the leads/circuit of your choice. Eliminates compressor short cycling and start the system safely when your ready to start it Innovative circuit selector switches to activate leads/circuits of your choosing at any timeResettable popper fuse - will never short outNo batteries required - powered by the low voltage in the A/C unitWorks on multi stage units including heat pumpsIncludes 20 interchangeable ends2 Spade Adapter6 Alligator Clamps6 Magnetic Tips6 Self Piercing Insulation Tips6 Jumper Leads1 Hard Zip-Up EVA Sectioned Case1 Jumper King Thermostat Bypass ToolEquipped with Magnets and Fold-Out Hook for Hands Free Work ## Features - Quickly bypass thermostats and activate HVAC circuits for fast troubleshooting and system diagnostics. - Includes interchangeable adapters such as magnetic tips, alligator clips, spade connectors, and self-piercing insulation probes. - Ideal for testing compressors, relays, contactors, and thermostat circuits during AC or heat pump service. - Designed for use on 0–30V HVAC control circuits with built-in resettable fuse protection. - Comes with 20 interchangeable ends and a durable zip-up carrying case for organized field service. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BHLMJNMR | | Best Sellers Rank | #259,244 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #207 in Home Thermostat Accessories | | Brand Name | Supco | | Color | Orange | | Customer Reviews | 4.8 4.8 out of 5 stars (310) | | Item Weight | 0.78 kg | | Manufacturer | Supco | | Measurement Type | Voltmeter | | Minimum Operating Voltage | 1 volts | | Model | TFXJK | | Number of Items | 1 | | Part Number | TFXJK | | Specification Met | CE | | Style Name | Compact | | UPC | 687152291489 | | Unit Count | 1 Count | | Upper Temperature Rating | 150 °F | ## Product Details - **Brand:** Supco - **Color:** Orange - **Item Weight:** 0.78 kg - **Min. Operating Voltage:** 1 volts - **Style:** Compact ## Images ![Supco Tradefox Jumper King Bypass Low Voltage Thermostat to Activate The Circuit - Image 1](https://m.media-amazon.com/images/I/41P2tnAeGdL.jpg) ![Supco Tradefox Jumper King Bypass Low Voltage Thermostat to Activate The Circuit - Image 2](https://m.media-amazon.com/images/I/41dkKwrjtvL.jpg) ![Supco Tradefox Jumper King Bypass Low Voltage Thermostat to Activate The Circuit - Image 3](https://m.media-amazon.com/images/I/718DsFof6uL.jpg) ![Supco Tradefox Jumper King Bypass Low Voltage Thermostat to Activate The Circuit - Image 4](https://m.media-amazon.com/images/I/41RRIhoBFpL.jpg) ![Supco Tradefox Jumper King Bypass Low Voltage Thermostat to Activate The Circuit - Image 5](https://m.media-amazon.com/images/I/41tm3oiCy-L.jpg) ## Frequently Bought Together - Supco Tradefox Jumper King Bypass Low Voltage Thermostat to Activate The Circuit - HVAC Guys - The Fuse Saver | HVAC Circuit Tester | 3 AMP & 5 AMP Fuses | Fuse Tester for Circuit Breaker - UL Rated 24V AC/DC & 125/250V AC - Supco FPRO100 Furnace Pro Switch Clip --- ## 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.co.za/products/570087844-supco-tradefox-jumper-king-bypass-low-voltage-thermostat-to-activate](https://www.desertcart.co.za/products/570087844-supco-tradefox-jumper-king-bypass-low-voltage-thermostat-to-activate) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-09-17*