---
product_id: 410236821
title: "TM624 40-Group School or Factory Automatic Bell Timer Controller 1~99 Seconds Interval Auto Ring Time Switch Digital Programmable LCD Display Din Rail Microcomputer Time Relay NKG-4"
brand: "sinotimer"
price: "₨25883"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/410236821-tm624-40-group-school-or-factory-automatic-bell-timer-controller
store_origin: LK
region: Sri Lanka
---

# TM624 40-Group School or Factory Automatic Bell Timer Controller 1~99 Seconds Interval Auto Ring Time Switch Digital Programmable LCD Display Din Rail Microcomputer Time Relay NKG-4

**Brand:** sinotimer
**Price:** ₨25883
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** TM624 40-Group School or Factory Automatic Bell Timer Controller 1~99 Seconds Interval Auto Ring Time Switch Digital Programmable LCD Display Din Rail Microcomputer Time Relay NKG-4 by sinotimer
- **How much does it cost?** ₨25883 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/410236821-tm624-40-group-school-or-factory-automatic-bell-timer-controller)

## Best For

- sinotimer enthusiasts

## Why This Product

- Trusted sinotimer brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

TM624 40-Group School or Factory Automatic Bell Timer Controller 1~99 Seconds Interval Auto Ring Time Switch Digital Programmable LCD Display Din Rail Microcomputer Time Relay NKG-4

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | SINOTIMER |
| Model Number | TM624 |
| Colour | Black and White |
| Package Dimensions | 8.99 x 8 x 5.08 cm; 122.47 g |
| Material | Plastic |
| Item Weight | 122 g |

## Product Details

- **Colour:** Black and White
- **Brand:** SINOTIMER
- **Material:** Plastic
- **Number of settings:** 40
- **UPC:** 780744817743

## Images

![TM624 40-Group School or Factory Automatic Bell Timer Controller 1~99 Seconds Interval Auto Ring Time Switch Digital Programmable LCD Display Din Rail Microcomputer Time Relay NKG-4 - Image 1](https://m.media-amazon.com/images/I/51gu9DY-iML.jpg)
![TM624 40-Group School or Factory Automatic Bell Timer Controller 1~99 Seconds Interval Auto Ring Time Switch Digital Programmable LCD Display Din Rail Microcomputer Time Relay NKG-4 - Image 2](https://m.media-amazon.com/images/I/41JWFKlDCqL.jpg)
![TM624 40-Group School or Factory Automatic Bell Timer Controller 1~99 Seconds Interval Auto Ring Time Switch Digital Programmable LCD Display Din Rail Microcomputer Time Relay NKG-4 - Image 3](https://m.media-amazon.com/images/I/4169BmI5zTL.jpg)
![TM624 40-Group School or Factory Automatic Bell Timer Controller 1~99 Seconds Interval Auto Ring Time Switch Digital Programmable LCD Display Din Rail Microcomputer Time Relay NKG-4 - Image 4](https://m.media-amazon.com/images/I/41LtFFCKoOL.jpg)
![TM624 40-Group School or Factory Automatic Bell Timer Controller 1~99 Seconds Interval Auto Ring Time Switch Digital Programmable LCD Display Din Rail Microcomputer Time Relay NKG-4 - Image 5](https://m.media-amazon.com/images/I/51LeBT7vO8L.jpg)

## Frequently Bought Together

- TM624 40-Group School or Factory Automatic Bell Timer Controller 1~99 Seconds Interval Auto Ring Time Switch Digital Programmable LCD Display Din Rail Microcomputer Time Relay NKG-4
- Electromagnetic Power Relay, 8-Pin 10 AMP 24V AC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC - MY2NJ [Applicable for DIN Rail System]
- 2 Piece VAMRONE Aluminum DIN Rails, 12 Inch Long, 35mm Wide, 7.5mm High, Top Hat Slotted DIN Rail with RoHS, Extra Premium Screws Included for Hardware Components Mounting

---

## 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.lk/products/410236821-tm624-40-group-school-or-factory-automatic-bell-timer-controller](https://www.desertcart.lk/products/410236821-tm624-40-group-school-or-factory-automatic-bell-timer-controller)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-12*