---
product_id: 4555119
title: "Honeywell Ademco 1321 16.5V Plug-In Transformer"
brand: "honeywell"
price: "₩89964"
currency: KRW
in_stock: true
reviews_count: 8
url: https://www.desertcart.kr/products/4555119-honeywell-ademco-1321-16-5v-plug-in-transformer
store_origin: KR
region: South Korea
---

# 16.5V output power Plug-in convenience Reliable Honeywell quality Honeywell Ademco 1321 16.5V Plug-In Transformer

**Brand:** honeywell
**Price:** ₩89964
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your peace of mind with Honeywell’s trusted transformer!

## Quick Answers

- **What is this?** Honeywell Ademco 1321 16.5V Plug-In Transformer by honeywell
- **How much does it cost?** ₩89964 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/4555119-honeywell-ademco-1321-16-5v-plug-in-transformer)

## Best For

- honeywell enthusiasts

## Why This Product

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

## Key Features

- • **Plug-In Simplicity:** Easy installation with a compact plug-in design that fits seamlessly into any setup.
- • **Compact & Space-Saving:** Sleek form factor that won’t clutter your workspace or security panel area.
- • **Consistent 16.5V Output:** Ensures stable power for your security systems without interruption.
- • **Trusted Brand Reliability:** Honeywell Ademco’s proven durability guarantees long-lasting performance.
- • **Optimized for Security Systems:** Specifically engineered to power Ademco alarm systems efficiently and safely.

## Overview

The Honeywell Ademco 1321 is a 16.5V plug-in transformer designed to provide reliable, consistent power to Ademco security systems. Its compact design ensures easy installation and space-saving convenience, backed by Honeywell’s reputation for durable, high-quality components.

## Description

Honeywell Ademco 1321 16.5V Plug-In Transformer

## Features

- Honeywell Ademco 1321

## Product Details

- **Brand:** Honeywell
- **Power Source:** Corded Electric
- **Maximum Frequency:** 60 Hz
- **Minimum Frequency:** 50 Hz
- **Specification Met:** UL

## Images

![Honeywell Ademco 1321 16.5V Plug-In Transformer - Image 1](https://m.media-amazon.com/images/I/71rJLlhhSoL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Power Up Your Security System
*by K***J on May 13, 2024*

Keep your security system running smoothly and reliably with the Honeywell Ademco 1321 16.5V Plug-In Transformer, the essential power source for your home or business security setup. Engineered with Honeywell's renowned quality and reliability, this transformer delivers consistent power to your security devices, ensuring uninterrupted protection for your property and peace of mind for you and your loved ones. Say goodbye to power interruptions and system failures – with the Honeywell Ademco 1321 Transformer, your security system stays powered up and ready to guard against intruders and emergencies.Reliable Power Source: The standout feature of the Honeywell Ademco 1321 16.5V Plug-In Transformer is its reliability in providing steady and uninterrupted power to your security system components. With its robust construction and precision engineering, this transformer delivers a constant voltage of 16.5 volts, ensuring optimal performance and longevity for your security devices. Whether you're powering control panels, keypads, sensors, or sirens, the Honeywell Ademco 1321 Transformer provides the reliable power source your security system needs to operate effectively day and night.Plug-and-Play Convenience: Designed for hassle-free installation, the Honeywell Ademco 1321 Transformer features a plug-in design that allows for quick and easy setup with standard electrical outlets. Simply plug the transformer into a nearby outlet, connect it to your security system, and you're ready to go – no complicated wiring or professional installation required. The plug-and-play convenience of the Honeywell Ademco 1321 Transformer saves time and effort, allowing you to get your security system up and running in minutes without any technical expertise.Versatile Compatibility: Compatible with a wide range of Honeywell and Ademco security systems, the Honeywell Ademco 1321 Transformer offers versatile compatibility for seamless integration with your existing setup. Whether you're upgrading an older system or installing a new one, this transformer is compatible with most Honeywell and Ademco control panels, keypads, sensors, and accessories, ensuring compatibility and interoperability across your entire security network. With its versatile compatibility, the Honeywell Ademco 1321 Transformer provides a flexible and future-proof power solution for your security needs.Compact and Space-Saving Design: Featuring a compact and space-saving design, the Honeywell Ademco 1321 16.5V Plug-In Transformer is ideal for installations where space is limited or aesthetics are important. The sleek and low-profile design blends seamlessly into any environment, whether it's installed in a residential home, commercial office, or industrial facility. With its compact size and unobtrusive appearance, the Honeywell Ademco 1321 Transformer offers discreet and space-efficient power distribution for your security system, allowing you to maintain a clean and organized installation without sacrificing functionality or performance.Trusted Brand Reputation: Backed by Honeywell's decades-long legacy of excellence and innovation in the security industry, the Honeywell Ademco 1321 16.5V Plug-In Transformer is a trusted and reliable choice for homeowners, businesses, and security professionals worldwide. Honeywell's commitment to quality, reliability, and customer satisfaction ensures that every transformer is manufactured to the highest standards of excellence, delivering superior performance and peace of mind for years to come. With Honeywell, you can trust that your security system is in good hands, backed by a brand that's synonymous with trust and reliability.In conclusion, the Honeywell Ademco 1321 16.5V Plug-In Transformer is the ultimate power solution for your home or business security system, offering reliable performance, plug-and-play convenience, versatile compatibility, compact design, and the trusted reputation of Honeywell. Whether you're upgrading an existing system or installing a new one, this transformer provides the power your security devices need to operate effectively and protect your property against intruders and emergencies. Upgrade to the Honeywell Ademco 1321 Transformer today and experience the difference in reliability and peace of mind.

### ⭐⭐⭐⭐⭐ Exactly what we needed.
*by K***R on April 29, 2024*

The old thermostat was heating up.This new unit is working perfectly after one week.

### ⭐⭐⭐⭐ Perfect fit
*by D***T on July 11, 2019*

Direct replacement for old part. My doorbell works again

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**Shop now:** [https://www.desertcart.kr/products/4555119-honeywell-ademco-1321-16-5v-plug-in-transformer](https://www.desertcart.kr/products/4555119-honeywell-ademco-1321-16-5v-plug-in-transformer)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-28*