I have a nest hello, and i have had a problem with power. this product was suggested to me, but, what chime could i use?

You should be able to use it with any chime that requires 24V power.

I have bought this transformer, it says it is 24v. i am reading 30v at the doorbell button. anybody know if it will cause a problem with a ring pro?

24 vac transformers normally put out 28 - 30 volts. Any doorbell transformer that I have ever replaced is a 15 volt output transformer.

There are 2 points, labeled "R" and "C", on the transformer where you attach wires with screws. What do "R" and "C" stand for? "Remote" and "Chime"?

“R” stands for “Red,” not rear. It is the hot terminal. The hot wires in 24 volt AC systems are typically red. “C” stands for common.

Will this work with 16v chime

I talked to Nutone, and they said their chimes take only 16V. This transformer may eventually blow out the chime. We got a NEST door bell, and it is rated for 16V-24V and 10-40VA. I got this b/c I want the higher voltage and higher watt requirements. If the chime burns out, so be it. A chime costs $20, I am not going to worry about it.

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Maxdot Doorbell Transformer 24V 40VA Compatible with Ring Doorbell

Maxdot Doorbell Transformer 24V 40VA Compatible with Ring Doorbell

Product ID: 96546146

Details

Brand
Maxdot
Mounting Type
Surface Mount
Power Source
Corded
Product Dimensions
4.13"D x x
Specification Met
UL

⚡24V output power

🔒UL safety certified

🔧Easy installation

₩76765

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Description

🔔 Power your smart home with confidence and style!

UL LISTED FOR SAFETY - Certified to reduce fire risks and ensure long-lasting, worry-free operation.
RELIABLE 24 V 40 VA POWER - Delivers consistent voltage to keep your smart doorbell running flawlessly.
UNIVERSAL COMPATIBILITY - Seamlessly powers Ring, Nest, Ecobee, Honeywell, and Sensi devices.
HASSLE FREE INSTALLATION - Clear wiring diagrams and versatile mounting options make setup a breeze.
DEDICATED CUSTOMER SUPPORT - Responsive service guarantees satisfaction or your money back.

The Maxdot Doorbell Transformer provides a stable 24V/40VA power supply compatible with leading smart doorbells like Ring and Nest. UL listed for enhanced safety, it ensures reliable performance while being easy to install with multiple mounting options. Backed by professional customer service, it’s the smart upgrade your home deserves.

Specifications

ASIN	B07L9X9V57
Best Sellers Rank	#32,206 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #20 in Door Bell Transformers
Brand Name	Maxdot
Customer Reviews	4.3 4.3 out of 5 stars (4,682)
Included Components	Doorbell Transformer
Item Dimensions D x W x H	4.13"D x 3.94"W x 3.07"H
Item Highlight	Safe UL Listed, Wired 24 Volt Door Bell Kit, Easy to Install
Item Weight	1.6 pounds
Manufacturer	Maxdot
Maximum Frequency	60 hertz
Minimum Frequency	60 hertz
Model	Maxdot-Transformator-0491
Mounting Type	Surface Mount
Number of Items	1
Part Number	Maxdot-Termostato-0491
Power Source	Corded Electric
Specification Met	UL
UPC	797153595773

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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

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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₩76765

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered 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 South Korea.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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