Can it be used with just batteries ?

The bell requires 8 volt ac., it does not work on DC.

Is the transformer build into the bell structure or a separate piece of kit ?

Transformer is separate. The enclosure is similar to, but not the same as, RS part number 194-7576 to fit a DIN rail like 771-9565. . There are screw holes which would enable the enclosure to be screwed to a wall.

does this need to be plugged into a mains socket?

It’s 12v, so it would be mains in then a 12v transformer to step down the voltage to make it work, if you connect 240v directly to it, you’ll blow it

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

SCS Sentinel, CFI0018, Electromechanical Wired Doorbell with 8V AC 1A Offset Transformer, User Manual, RetroBell

SCS Sentinel, CFI0018, Electromechanical Wired Doorbell with 8V AC 1A Offset Transformer, User Manual, RetroBell

Product ID: 172473434

⚡8V AC 1A offset transformer included

🔔80 dB loud ringer

🔧2-wire easy installation

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

3113553₫

Duties & taxes included

In stock

Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vietnam.

Secure transaction

Description

🔔 Ring in timeless style with power and clarity!

CLEAR LOUD - 80 decibel sound ensures your doorbell is heard loud and clear, even in busy environments.
EFFORTLESS SETUP - Simple 2-wire connection makes installation quick and hassle-free for any DIY enthusiast.
PLUG PLAY POWER - Comes with a dedicated 8V AC 1A transformer—no extra purchases or batteries needed.
SEAMLESS STYLE MATCH - Blends perfectly with industrial, vintage, modern, or quirky interiors for a curated aesthetic.
RETRO VIBES MODERN RELIABILITY - Classic electromechanical chime with a stylish vintage look that elevates any space.

The SCS Sentinel CFI0018 RetroBell is an electromechanical wired doorbell featuring a loud 80 dB ringer powered by an included 8V AC 1A offset transformer. Designed for easy 2-wire installation, it combines vintage aesthetics with modern reliability, requiring no batteries and fitting seamlessly into diverse interior styles.

Specifications

ASIN	B071Z6KKW3
Batteries Required?	No
Batteries included?	No
Best Sellers Rank	225,390 in DIY & Tools ( See Top 100 in DIY & Tools ) 45 in Door Bell Transformers
Colour	Black
Customer Reviews	4.3 4.3 out of 5 stars (541)
Date First Available	16 May 2017
Included Components	1 x wired chime; 1 x offset transformer; 1 x instruction manual
Item Package Quantity	1
Item Weight	486 g
Item model number	SEN5200275
Manufacturer	SCS SENTINEL
Measurement System	Metric
Number of Pieces	1
Part Number	CFI0018
Product Dimensions	3.2 x 7.5 x 15 cm; 486 g

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.