--- product_id: 92519604 title: "1-4 Devices Time Control Board - JY_JUYAO ELECTRONIC JY-21 4 Digits 1-4 Devices Banknotes Coins Operated Timer Board Time Control Pcb for Car Washing Machine Vending Machine" brand: "juyao" price: "FREE" currency: EUR in_stock: false url: https://www.desertcart.hr/products/92519604-1-4-devices-time-control-board-jy-juyao-electronic-jy store_origin: HR region: Croatia --- # 15A Max Load Multi-Function Time Control 1-4 Devices Time Control Board - JY_JUYAO ELECTRONIC JY-21 4 Digits 1-4 Devices Banknotes Coins Operated Timer Board Time Control Pcb for Car Washing Machine Vending Machine **Brand:** juyao **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > ⏳ Time is Money – Control Yours Wisely! ## Quick Answers - **What is this?** 1-4 Devices Time Control Board - JY_JUYAO ELECTRONIC JY-21 4 Digits 1-4 Devices Banknotes Coins Operated Timer Board Time Control Pcb for Car Washing Machine Vending Machine by juyao - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/92519604-1-4-devices-time-control-board-jy-juyao-electronic-jy) ## Best For - juyao enthusiasts ## Why This Product - Trusted juyao brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Real-Time Display:** Stay informed with a clear display of remaining time. - • **Customizable Settings:** Easily set time and coin quantity to fit your needs. - • **Robust Power Handling:** Handles up to 15A, ensuring reliable performance. - • **User-Friendly Operation:** Insert coins and start devices with a simple push of a button. - • **Control Multiple Devices:** Effortlessly manage 1-4 devices with a single board. ## Overview The JY-21 Time Control Board is a versatile solution for managing up to four devices, perfect for car washes and vending machines. With customizable settings, a user-friendly interface, and a robust 15A maximum load, this timer board ensures efficient operation and real-time monitoring of your devices. ## Description Input Voltage for circuit: DC+12VInput Voltage for device: Based on Input voltage for deviceStandby Display: shows:00:00, reply: Normal Open (NO)Max current load: 15A for totalBasic working way: User inserts coins-> goes to balance-> choose device to use by push button start->device start workingCheck Balance Push a button when stand byDisplay: Standby: shows 00:00Running Time: Shows remaining time If more than 2 devices are running, user can hold on button start for seconds to check timeInsert coins when time is running (1) Credit goes to balance. (2) Add time after user push button start.Connection- Reference to picture for No.1-2: to counter (P2) 3-4: input device (P1)5-8: button START for device 4 to 1 (P3)9-12: output for device 4 to 1 (p5)13: Input for device 9, 10, 11, and 12 (P5)14: Input for this board- wire type: RED: DC+12V, Black: GND15: Input for this board-AC jack:5.5mm*2.1mm16: 4 digits Display 17: white lead18: connector for button: check balance19-23: setting button 24: pause connector25: LED sign for 1-4 devices (P4)Connection Eaxmple: reference to picturePlease message us for manual if you needWarranty:(1) 1 year(2) if it is fault when receive, we resend new or give you a refund ## Features - FUNCTION: It can controls 1-4 devices by time, Max total current load: 15A - SET TIMER BOARD: Free to set up time, coin quantity (price), multi-function, and check remaining coin quantity - HOW IT WORKS: (1)Working way: User inserts coins→ goes to balance→ choose device to use by push button start→device start working (2)Insert coins when time is running: Credit goes to balance, and add time after user push button start. - DISPLAY: (1)Standby: shows 00:00 (2) Running Time: Shows remaining time. (3) If more than 2 devices are running, user can hold on button start for seconds to check time - INPUT FOR BOARD: DC+12V, output for device: based on input for device ## Images ![1-4 Devices Time Control Board - JY_JUYAO ELECTRONIC JY-21 4 Digits 1-4 Devices Banknotes Coins Operated Timer Board Time Control Pcb for Car Washing Machine Vending Machine - Image 1](https://m.media-amazon.com/images/I/71V5jzX2Z-L.jpg) ![1-4 Devices Time Control Board - JY_JUYAO ELECTRONIC JY-21 4 Digits 1-4 Devices Banknotes Coins Operated Timer Board Time Control Pcb for Car Washing Machine Vending Machine - Image 2](https://m.media-amazon.com/images/I/717HstIAakL.jpg) ![1-4 Devices Time Control Board - JY_JUYAO ELECTRONIC JY-21 4 Digits 1-4 Devices Banknotes Coins Operated Timer Board Time Control Pcb for Car Washing Machine Vending Machine - Image 3](https://m.media-amazon.com/images/I/71p+EE2XAwL.jpg) ![1-4 Devices Time Control Board - JY_JUYAO ELECTRONIC JY-21 4 Digits 1-4 Devices Banknotes Coins Operated Timer Board Time Control Pcb for Car Washing Machine Vending Machine - Image 4](https://m.media-amazon.com/images/I/711HP1XOc9L.jpg) ![1-4 Devices Time Control Board - JY_JUYAO ELECTRONIC JY-21 4 Digits 1-4 Devices Banknotes Coins Operated Timer Board Time Control Pcb for Car Washing Machine Vending Machine - Image 5](https://m.media-amazon.com/images/I/510OC5Hl96L.jpg) --- ## 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.hr/products/92519604-1-4-devices-time-control-board-jy-juyao-electronic-jy](https://www.desertcart.hr/products/92519604-1-4-devices-time-control-board-jy-juyao-electronic-jy) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-18*