--- product_id: 608490493 title: "WWMDiB 4Pcs RC servo Tester with 3 Modes to Check servo or ESC, able to Easily detect and configure Server Virtual Space, Jitter and Median, servo Controller" brand: "wwzmdib" price: "NT$45" currency: TWD in_stock: false reviews_count: 5 url: https://www.desertcart.tw/products/608490493-wwmdib-4pcs-rc-servo-tester-with-3-modes-to-check store_origin: TW region: Taiwan --- # compact 2.54cm size precise reaction time control 3 versatile testing modes WWMDiB 4Pcs RC servo Tester with 3 Modes to Check servo or ESC, able to Easily detect and configure Server Virtual Space, Jitter and Median, servo Controller **Brand:** wwzmdib **Price:** NT$45 **Availability:** ❌ Out of Stock ## Summary > 🎯 Nail your servo setup like a pro—never miss a beat! ## Quick Answers - **What is this?** WWMDiB 4Pcs RC servo Tester with 3 Modes to Check servo or ESC, able to Easily detect and configure Server Virtual Space, Jitter and Median, servo Controller by wwzmdib - **How much does it cost?** NT$45 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/608490493-wwmdib-4pcs-rc-servo-tester-with-3-modes-to-check) ## Best For - wwzmdib enthusiasts ## Why This Product - Trusted wwzmdib brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dynamic Auto-Swing:** Automatic mode mimics window wiper motion for full-range servo performance checks. - • **Pocket-Sized Power:** Ultra-compact design fits effortlessly in your flight box—always ready when you need it. - • **Triple-Mode Mastery:** Seamlessly switch between Manual, Neutral, and Automatic modes for comprehensive servo and ESC diagnostics. - • **Instant Neutral Reset:** Neutral mode quickly centers your servo, ensuring perfect calibration every time. - • **Precision Speed Control:** Manual mode lets you fine-tune servo speed to test reaction times with pinpoint accuracy. ## Overview The WWMDiB 4Pcs RC Servo Tester is a compact, no-battery-required tool featuring three distinct modes—Manual, Neutral, and Automatic—to test and calibrate servos and ESCs with precision. Its small footprint and versatile functions make it an essential gadget for RC enthusiasts and professionals seeking reliable, on-the-go diagnostics. ## Description A+ ## Features - 💎【RC Servo Tester】：with 3 modes to check servo or ESC, able to easily detect and configure server virtual space, jitter and median. - 🥇【Manual mode】: turn the knob with different speed, check the reaction time. - 🥈【Neutral mode】: make the servo go back to the neutral point. - 🥉【Automatic mode】: make the servo swing like a window wipers in the biggest angle. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0CHM9GTFN | | Assembly Required | No | | Batteries Required | No | | Colour | Servo Motors | | Customer Reviews | 4.3 4.3 out of 5 stars (75) 4.3 out of 5 stars | | Date First Available | 13 Sept. 2023 | | Guaranteed Software Updates Until | unknown | | Manufacturer Recommended Age | 12 months and up | | Manufacturer Reference | servo tester | | Material Type S | Plastic | | Product Dimensions | 2.54 x 2.54 x 1.27 cm; 32 g | ## Images ![WWMDiB 4Pcs RC servo Tester with 3 Modes to Check servo or ESC, able to Easily detect and configure Server Virtual Space, Jitter and Median, servo Controller - Image 1](https://m.media-amazon.com/images/I/61Wa7V+8ZlL.jpg) ![WWMDiB 4Pcs RC servo Tester with 3 Modes to Check servo or ESC, able to Easily detect and configure Server Virtual Space, Jitter and Median, servo Controller - Image 2](https://m.media-amazon.com/images/I/71m9-cDy0ZL.jpg) ![WWMDiB 4Pcs RC servo Tester with 3 Modes to Check servo or ESC, able to Easily detect and configure Server Virtual Space, Jitter and Median, servo Controller - Image 3](https://m.media-amazon.com/images/I/515jU8bGszL.jpg) ![WWMDiB 4Pcs RC servo Tester with 3 Modes to Check servo or ESC, able to Easily detect and configure Server Virtual Space, Jitter and Median, servo Controller - Image 4](https://m.media-amazon.com/images/I/413Z1o3S-fL.jpg) ![WWMDiB 4Pcs RC servo Tester with 3 Modes to Check servo or ESC, able to Easily detect and configure Server Virtual Space, Jitter and Median, servo Controller - Image 5](https://m.media-amazon.com/images/I/61nVUmHqYuL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good price and utilitarian *by on Reviewed in the United States 2 March 2026* Work well to test both digital and analogies 6 volt servos ### ⭐⭐⭐⭐⭐ All 4 work *by on Reviewed in the United States 13 March 2024* I checked all 4 of the testers on receipt and they all work for my purpose (as a throttle control). I connected them to the throttle output from my brushless ESC and then used the knob to start and run the brushless motor. I checked all 3 outputs as well as the input separately. I had originally connected 4x AA batteries to the input which powered on the testers. However, I noticed that when connecting the ESC's throttle output to the tester's output, I did *NOT* need any power connected to the input side as it seems to draw the power provided by the ESC connector.So, in case anyone's wondering how to use these (as there aren't any instructions provided), you only need your ESC, motor, RC battery and the tester. Make sure the tester's knob is in the lowest position. Connect the ESC to the motor and the ESC's throttle lead to one of the servo tester's *outputs*. If it's an RC plane/drone motor, make sure there isn't any prop connected to the motor. Now, connect the ESC to your RC battery. When you slowly turn the knob, it should start the motor and the knob will act as a throttle control. I haven't tested the other modes of the tester to see if/how they work. ### ⭐⭐⭐⭐ Works good *by on Reviewed in the United States 3 July 2026* Does what is intended --- ## 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/608490493-wwmdib-4pcs-rc-servo-tester-with-3-modes-to-check](https://www.desertcart.tw/products/608490493-wwmdib-4pcs-rc-servo-tester-with-3-modes-to-check) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-09-16*