---
product_id: 619000063
title: "Blackt Electrotech (BT-41D): 16/240V AC Programmable Daily/Weekly Digital LCD Display Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months)"
brand: "blackt electrotech"
price: "€ 27.88"
currency: EUR
in_stock: false
reviews_count: 5
category: "Blackt Electrotech"
url: https://www.desertcart.pt/products/619000063-blackt-electrotech-bt-41d-16-240v-ac-programmable-daily-weekly
store_origin: PT
region: Portugal
---

# 16 On/Off cycles daily Built-in rechargeable battery DIN rail mount for easy install Blackt Electrotech (BT-41D): 16/240V AC Programmable Daily/Weekly Digital LCD Display Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months)

**Brand:** blackt electrotech
**Price:** € 27.88
**Availability:** ❌ Out of Stock

## Summary

> ⏳ Automate your day, own your time!

## Quick Answers

- **What is this?** Blackt Electrotech (BT-41D): 16/240V AC Programmable Daily/Weekly Digital LCD Display Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months) by blackt electrotech
- **How much does it cost?** € 27.88 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/619000063-blackt-electrotech-bt-41d-16-240v-ac-programmable-daily-weekly)

## 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-In Power Backup:** Rechargeable battery ensures uninterrupted performance even during power glitches.
- • **Versatile Control Hub:** Perfect for street lamps, heaters, production equipment, and smart home appliances.
- • **Effortless Installation:** DIN rail mounting system designed for quick, professional setup.
- • **Precision Timing Mastery:** Set up to 16 on/off operations daily for flawless automation.
- • **Industrial-Grade Reliability:** High-precision chip with strong anti-interference for consistent control.

## Overview

The Blackt Electrotech BT-41D is a robust 16A/240V AC programmable timer switch featuring an LCD display and up to 16 daily on/off cycles. Designed with an industrial-grade chip and rechargeable battery, it offers precise, interference-resistant control for a wide range of electrical devices. Its DIN rail mounting ensures seamless integration into professional setups, making it an essential tool for smart automation in homes and industries alike.

## Description

Blackt Electrotech 16A/240V AC Digital LCD Display Programmable Control Counter/Relay Timer Time Switch: DIN Rail: This timer switch can automatically turn on/off all kinds of electrical equipment according to the time set by the user. It has a built-in rechargeable battery and an industrial grade chip with high precision and strong anti-interference ability, the timer switch is ideal for controlling street lamps, neon lamps, production equipment, radio and television and many other household appliances. Package Includes:1 x Timer Switch,1 x User Manual. Specifications: Contact Voltage: 16A 240V AC (50/60Hz), On/Off Operation: 16 On and 16 Off (Manual/Auto), Display: LCD Power: 4.5VA (Max. ), error: =2s/day (25), mounting method: DIN rail (not included), binding: 1 min to 168 hours, operating temperature: -10? To 55? Dimensions: 86 x 36 x 65 mm. Instructions: 1. When you use the timer switch for the first time, input AC and charge the built-in battery, then press the reset button. 2. The timer switch is in 24-hour mode as default. Press and hold the time button (bottom left, next to restart) for 5 seconds until it shows AM to set the 12-hour mode. Press and hold the time button for 5 seconds to return to 24 hours mode. 3. Full time clock setting (see more in user manual).

Review: I bought this product two numbers in 1st Feb 2020 and installed then in my two baloneys for switching on & off my grow light for my bonsais. Since then it has been doing the function regularly without any problem. However, a few days back one timer developed a problem that the clock was running very slow. I took up with the supplier and the response was immediate in few minutes came the reply both on desertcart and email. Then as battery was the probable cause I opened and told the supplier that it is fixed one and wanted to know where I can buy. They offered for sending it by currier only for the currier charges and a small amount for four battery. All these happened in about 5 days I got the battery installed and it is back in operation. My salute to the customer care they have and appreciate the response. Wish them all the best and wish they keep up the same trend.
Review: Good product

## Features

- Versatile: This timer switch can automatically turn on/off all kinds of electric equipment according to the time you set. It's perfect for controlling street lamps, Motor, heater, neon lamps, production equipment, radios, televisions, and other home appliances.
- High-Quality Components: The timer switch is built with a rechargeable battery and an industrial-grade chip that provides high precision and strong anti-interference ability.
- mer switch, and it can be mounted on a DIN rail for easy installation.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07HQLZYB5 |
| ASIN  | B07HQLZYB5 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #199,069 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #341 in Electrical Timers |
| Color | White |
| Customer Reviews | 4.0 4.0 out of 5 stars (1,571) |
| Customer reviews | 4.0 4.0 out of 5 stars (1,571) |
| Date First Available | 26 September 2018 |
| Date First Available  | 26 September 2018 |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 219 g |
| Item model number | BT-1040 |
| Item model number  | BT-1040 |
| Manufacturer | Blackt Electrotech |
| Manufacturer  | Blackt Electrotech |
| Material | Acrylonitrile Butadiene Styrene |
| Part number | BT-1040 |
| Product Dimensions | 3.6 x 8.6 x 6.5 cm; 219 g |
| Product Dimensions  | 3.6 x 8.6 x 6.5 cm; 219 g |
| Size | Standard |

## Product Details

- **Brand:** Blackt Electrotech
- **Colour:** White
- **Item weight:** 219 Grams
- **Material:** Acrylonitrile Butadiene Styrene
- **Number of settings:** 32

## Images

![Blackt Electrotech (BT-41D): 16/240V AC Programmable Daily/Weekly Digital LCD Display Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months) - Image 1](https://m.media-amazon.com/images/I/412mwd8JMlL.jpg)
![Blackt Electrotech (BT-41D): 16/240V AC Programmable Daily/Weekly Digital LCD Display Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months) - Image 2](https://m.media-amazon.com/images/I/41iOMd2P5xL.jpg)
![Blackt Electrotech (BT-41D): 16/240V AC Programmable Daily/Weekly Digital LCD Display Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months) - Image 3](https://m.media-amazon.com/images/I/51WdapMRb5L.jpg)
![Blackt Electrotech (BT-41D): 16/240V AC Programmable Daily/Weekly Digital LCD Display Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months) - Image 4](https://m.media-amazon.com/images/I/61Bx83kOouL.jpg)
![Blackt Electrotech (BT-41D): 16/240V AC Programmable Daily/Weekly Digital LCD Display Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 6 Months) - Image 5](https://m.media-amazon.com/images/I/71Y6hNQ-RxL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***T on 8 October 2023*

I bought this product two numbers in 1st Feb 2020 and installed then in my two baloneys for switching on & off my grow light for my bonsais. Since then it has been doing the function regularly without any problem. However, a few days back one timer developed a problem that the clock was running very slow. I took up with the supplier and the response was immediate in few minutes came the reply both on amazon and email. Then as battery was the probable cause I opened and told the supplier that it is fixed one and wanted to know where I can buy. They offered for sending it by currier only for the currier charges and a small amount for four battery. All these happened in about 5 days I got the battery installed and it is back in operation. My salute to the customer care they have and appreciate the response. Wish them all the best and wish they keep up the same trend.

### ⭐⭐⭐⭐ Review
*by R***I on 30 November 2025*

Good product

### ⭐⭐⭐⭐⭐ Review
*by Y***A on 11 December 2025*

Timer is functioning well to for programing AC to turn on / off

## Frequently Bought Together

- Blackt Electrotech (BT41D): 16/240V AC Programmable Daily/Weekly Digital LCD Display Control Counter/Time Timer Relay Switch: DIN Rail Type (Warranty 12 Months)
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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-02-06*