--- product_id: 470304452 title: "– Helical Spring Antenna - 10 PCS, 433MHz, 2.2dBi Gain, Direct Welding for Wireless Data Transmission" brand: "daokai" price: "R267" currency: ZAR in_stock: true reviews_count: 1 url: https://www.desertcart.co.za/products/470304452-helical-spring-antenna-10-pcs-433mhz-2-2dbi-gain-direct store_origin: ZA region: South Africa --- # 2.2dBi gain - boosted signal strength 433MHz frequency - optimal IoT band Direct welding - seamless integration – Helical Spring Antenna - 10 PCS, 433MHz, 2.2dBi Gain, Direct Welding for Wireless Data Transmission **Brand:** daokai **Price:** R267 **Availability:** ✅ In Stock ## Summary > 📶 Elevate your wireless game with precision-tuned helical power! ## Quick Answers - **What is this?** – Helical Spring Antenna - 10 PCS, 433MHz, 2.2dBi Gain, Direct Welding for Wireless Data Transmission by daokai - **How much does it cost?** R267 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/470304452-helical-spring-antenna-10-pcs-433mhz-2-2dbi-gain-direct) ## Best For - daokai enthusiasts ## Why This Product - Trusted daokai brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bulk Pack of 10:** Ideal for scaling smart home or network projects without running out. - • **Compact & Lightweight:** Slim 5mm diameter and just 10g per antenna for sleek, unobtrusive deployment. - • **Direct Welding Design:** Ensures hassle-free, durable installation for professional-grade setups. - • **Reliable 433MHz Frequency:** Perfectly tuned for robust IoT and wireless data transmission. - • **Enhanced 2.2dBi Signal Gain:** Experience stronger, clearer connections with amplified signal strength. ## Overview This pack of 10 Helical Spring Antennas operates at 433MHz with a 2.2dBi gain, designed for seamless direct welding installation. Engineered for superior wireless data transmission, they deliver high signal strength and wide coverage, making them perfect for IoT, smart home, and network communication applications. ## Description Product introduction: Antenna is a kind of converter, which converts the guided wave propagating on the transmission line into the electromagnetic wave propagating in the unbounded medium (usually free space), or the opposite transformation. A component used in radio equipment to transmit or receive electromagnetic waves. Engineering systems such as radio communication, broadcasting, television, radar, navigation, electronic countermeasures, remote sensing, radio astronomy, etc., all use electromagnetic waves to transmit information, all rely on antennas to work. In addition, in the transmission of energy by electromagnetic waves, the radiation of non-signal energy also requires antennas. Product features: Frequency Range (MHz): 433 MHz/MHz-6 Gain (dBi): 2.2 Input Impedance (OHM): 50 Max - Power (dBm): 30 Diameter (mm): 5mm Length (mm): 34+/- 1 (including welded part length) Height (mm): 20+/- 1 (exposed part, excluding length of welded part) Connector Type: Direct Weld Package includes: 10 x Helical Spring Antenna 433MHz Build-In Antenna ## Features - Working principle: Antenna is a kind of converter, which converts the guided wave propagating on the transmission line into the electromagnetic wave propagating in the unbounded medium (usually free space), or the opposite transformation. - Parameters: Frequency Range (MHz): 433 MHz/MHz-6, Gain (dBi): 2.2, Input Impedance (OHM): 50,Max - Power (dBm): 30, Diameter (mm): 5 - Feature: 433MHz spring built-in antenna, In-line type. It has the characteristics of high signal strength, wide coverage and excellent quality. - Application: Widely used in various products in the wireless field such as network communication, Internet of Things, wireless data transmission, smart home, wireless radio and television, etc. - Package includes: You will get 10 x Helical Spring Antenna 433MHz Build-In Antenna. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | DAOKAI | | Part number | WE-DA-089 | | Item Weight | 10 g | | Package Dimensions | 8 x 6 x 0.5 cm; 10 g | | Item model number | WE-DA-089 | | Colour | 433MHz Helical Spring Antenna | | Item Package Quantity | 1 | | Included components | 10 x Helical Spring Antenna 433MHz Build-In Antenna. | | Batteries included? | No | | Batteries Required? | No | ## Product Details - **Antenna:** Radio, Television - **Brand:** DAOKAI - **Colour:** 433MHz Helical Spring Antenna - **Impedance:** 50 Ohms - **Manufacturer:** DAOKAI - **Number of items:** 10 ## Images ![– Helical Spring Antenna - 10 PCS, 433MHz, 2.2dBi Gain, Direct Welding for Wireless Data Transmission - Image 1](https://m.media-amazon.com/images/I/61-QcjM0vbL.jpg) ## Customer Reviews ### ⭐ It says 10 pcs but only came 5 *by M***. on 12 August 2024* Have written and never got a reply. Avoid. ## Frequently Bought Together - DAOKAI Helical Spring Antenna - 10 PCS, 433MHz, 2.2dBi Gain, Direct Welding for Wireless Data Transmission - kwmobile 3x 433 MHz transmitter receiver wireless module for Arduino and Raspberry Pi --- ## 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/470304452-helical-spring-antenna-10-pcs-433mhz-2-2dbi-gain-direct](https://www.desertcart.co.za/products/470304452-helical-spring-antenna-10-pcs-433mhz-2-2dbi-gain-direct) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-10-28*