---
product_id: 440304071
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: "€ 4.25"
currency: EUR
in_stock: false
url: https://www.desertcart.at/products/440304071-tm624-40-group-school-or-factory-automatic-bell-timer-controller
store_origin: AT
region: Austria
---

# 40 ON/OFF Groups 220V AC Power 1-99s Timer 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:** € 4.25
**Availability:** ❌ Out of Stock

## Summary

> ⏰ Time to Upgrade Your Control Game!

## 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?** € 4.25 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/440304071-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

## Key Features

- • **Precision Timing:** Set intervals from 1 to 99 seconds for ultimate control.
- • **Easy Installation:** Mounts seamlessly on a 35mm DIN rail for quick setup.
- • **Effortless Scheduling:** Automate your daily routines with 40 programmable settings.
- • **Robust Power Handling:** Handles loads up to 16A, perfect for schools and factories.
- • **User-Friendly Display:** LCD screen for clear visibility and easy programming.

## Overview

The TM624 Automatic Bell Timer Controller is a powerful digital solution designed for schools and factories, featuring 40 programmable ON/OFF settings, precise timing from 1 to 99 seconds, and robust load handling capabilities. Its user-friendly LCD display and easy DIN rail installation make it the perfect choice for efficient time management.

## 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 - desertcart.com

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09T6XKTNY |
| Brand Name | SINOTIMER |
| Color | Black and White |
| Customer Reviews | 5.0 5.0 out of 5 stars (1) |
| Manufacturer Part Number | TM624 |
| Material Type | Plastic |
| Number of settings | 40 |
| Screen Size | 2 Inches |
| UPC | 780744817743 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** SINOTIMER
- **Color:** Black and White
- **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

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**Shop now:** [https://www.desertcart.at/products/440304071-tm624-40-group-school-or-factory-automatic-bell-timer-controller](https://www.desertcart.at/products/440304071-tm624-40-group-school-or-factory-automatic-bell-timer-controller)

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-04-23*