---
product_id: 85724298
title: "SCHOOL BELL CONTROLLER SDM-10/U, 24÷250V AC/30÷300V DC"
brand: "xtechautomation"
price: "FREE"
currency: GBP
in_stock: false
url: https://www.desertcart.co.uk/products/85724298-school-bell-controller-sdm-10-u-24-250v-ac-30
store_origin: GB
region: United Kingdom
---

# SCHOOL BELL CONTROLLER SDM-10/U, 24÷250V AC/30÷300V DC

**Brand:** xtechautomation
**Price:** FREE
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** SCHOOL BELL CONTROLLER SDM-10/U, 24÷250V AC/30÷300V DC by xtechautomation
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/85724298-school-bell-controller-sdm-10-u-24-250v-ac-30)

## Best For

- xtechautomation enthusiasts

## Why This Product

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

## Description

The SDM-10/U school bell controller is designed for acoustic signalling control at schools using the school bells. The system control runs in an automatic mode according to the preset program. Program setting is operated by means of selecting the lesson duration, breaks duration and defining the beginning hour. The system is ready to implement some specials functions (alert bells, short lessons) by means of programmable control inputs. In case of power supply malfunction the unit battery sustain enables all settings saving and maintaining.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | XTECHAUTOMATION |
| Manufacturer | ZAMEL |
| Item model number | SDM-10/U |
| Cap Type | DIN RAIL TH-35 |
| Guaranteed software updates until | unknown |

## Images

![SCHOOL BELL CONTROLLER SDM-10/U, 24÷250V AC/30÷300V DC - Image 1](https://m.media-amazon.com/images/I/416+cdS3LIL.jpg)

---

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**Shop now:** [https://www.desertcart.co.uk/products/85724298-school-bell-controller-sdm-10-u-24-250v-ac-30](https://www.desertcart.co.uk/products/85724298-school-bell-controller-sdm-10-u-24-250v-ac-30)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-17*