--- product_id: 294392118 title: "Blackt Electrotech (BT41BL) : 220V Din Rail Mount Digital Timer 40-Group Time-Controlled Ringer Timer School Bell Relay" brand: "blackt electrotech" price: "SAR 75" currency: SAR in_stock: true reviews_count: 8 url: https://www.desertcart.com.sa/products/294392118-blackt-electrotech-bt41bl-220v-din-rail-mount-digital-timer-40 store_origin: SA region: Saudi Arabia --- # 1.6-inch large clear display 10,000+ electrical cycles lifespan 40 programmable time groups Blackt Electrotech (BT41BL) : 220V Din Rail Mount Digital Timer 40-Group Time-Controlled Ringer Timer School Bell Relay **Brand:** blackt electrotech **Price:** SAR 75 **Availability:** ✅ In Stock ## Summary > ⏰ Never miss a beat with Blackt Electrotech’s ultimate timer precision! ## Quick Answers - **What is this?** Blackt Electrotech (BT41BL) : 220V Din Rail Mount Digital Timer 40-Group Time-Controlled Ringer Timer School Bell Relay by blackt electrotech - **How much does it cost?** SAR 75 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/294392118-blackt-electrotech-bt41bl-220v-din-rail-mount-digital-timer-40) ## Best For - blackt electrotech enthusiasts ## Why This Product - Trusted blackt electrotech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** Engineered for over 10,000 electrical cycles ensuring long-lasting reliability. - • **Seamless Integration:** Din rail mount design fits effortlessly into your existing industrial setup. - • **Crystal Clear Display:** 1.6-inch large screen for effortless reading and quick adjustments. - • **Versatile Power Control:** Perfect for schools, factories, street lights, and advertising signs needing regular on/off cycles. - • **Precision Timing Mastery:** Control up to 40 distinct time groups with ease for flawless scheduling. ## Overview The Blackt Electrotech BT41BL is a robust 220V digital timer featuring 40 programmable time groups and a large 1.6-inch display. Designed for industrial and institutional use, it guarantees over 10,000 electrical cycles of reliable operation, making it ideal for school bells, production schedules, street lighting, and more. Its din rail mount design ensures easy installation and seamless integration into your power control systems. ## Description The Blackt Electrotech (BT41BL) 220V DIN Rail Mount Digital Timer is engineered to deliver accurate and reliable automatic switching for bells, alarms, and sirens. Perfect for schools, factories, and institutions, this timer allows you to set up to 40 different time programs for fully automated operations, ensuring punctuality and efficiency every day. ## Features - Long life, no less than 10,000 times of electrical life. - Set the start clock of each group, the running time of each group is the same, the setting range is 1-99 seconds. - 1.6 Inch large screen display, the reading is more convenient and clear. - Ideal for schools and other institutions requiring timed activities such as school bell ringing, production schedules, and more. - Can be used for street lights, factories, advertising signs, production equipment, radio and television equipment, stage and other power equipment that needs to be turned on and off regularly. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B08BFNDDVG | | Best Sellers Rank | #28,003 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #42 in Timers | | Brand | Blackt Electrotech | | Colour | White | | Country Of Origin | China | | Customer Reviews | 3.3 3.3 out of 5 stars (43) 3.3 out of 5 stars | | Display Size | 1.6 Inches | | Enclosure Material | Plastic | | Manufacturer | Blackt Electrotech | | Number Of Items | 1 | | Number Of Settings | 40 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Blackt Electrotech - **Colour:** White - **Material:** Plastic - **Number of settings:** 40 - **Screen Size:** 1.6 Inches ## Images ![Blackt Electrotech (BT41BL) : 220V Din Rail Mount Digital Timer 40-Group Time-Controlled Ringer Timer School Bell Relay - Image 1](https://m.media-amazon.com/images/I/61IEqrXN-4L.jpg) ![Blackt Electrotech (BT41BL) : 220V Din Rail Mount Digital Timer 40-Group Time-Controlled Ringer Timer School Bell Relay - Image 2](https://m.media-amazon.com/images/I/81idZ8gFtOL.jpg) ![Blackt Electrotech (BT41BL) : 220V Din Rail Mount Digital Timer 40-Group Time-Controlled Ringer Timer School Bell Relay - Image 3](https://m.media-amazon.com/images/I/71qrEPXQcxL.jpg) ![Blackt Electrotech (BT41BL) : 220V Din Rail Mount Digital Timer 40-Group Time-Controlled Ringer Timer School Bell Relay - Image 4](https://m.media-amazon.com/images/I/719KMvnGAoL.jpg) ![Blackt Electrotech (BT41BL) : 220V Din Rail Mount Digital Timer 40-Group Time-Controlled Ringer Timer School Bell Relay - Image 5](https://m.media-amazon.com/images/I/7194sUYQ9kL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good product *by on Reviewed in India 4 February 2026* Good ### ⭐ Time error needs to manually corrected everytime *by on Reviewed in India 11 August 2026* Its not a suitable product. Each day has error of +-2 seconds and so effectively every 1-2 weeks time needs to be adjusted. Although it says fully automatic, correcting this error is not at all expected. I won't recommend this product. ### ⭐⭐⭐⭐⭐ बहुत ही अच्छा प्रोडक्ट *by on Reviewed in India 29 February 2024* किमत थोड़ी ज्यादा है पर प्रोडक्ट बहुत अच्छा है ## Frequently Bought Together - Blackt Electrotech : 220V Din Rail Mount Digital Timer 40-Group Time-Controlled Ringer Timer School Bell Relay White - Blackt Electrotech BT41DW 30 Amps Digital Timer Switch Relay DIN Rail, Programmable Automatic On/Off (Single-Phase Waterproof) - Blackt Electrotech BT31P2 White Water Proof 230Volt Auto Day/Night on and Off Photocell, Ldr Sensor Switch for Lighting (5 Pic Pack) --- ## 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.com.sa/products/294392118-blackt-electrotech-bt41bl-220v-din-rail-mount-digital-timer-40](https://www.desertcart.com.sa/products/294392118-blackt-electrotech-bt41bl-220v-din-rail-mount-digital-timer-40) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-10-20*