1. Alarm Sensors & Motion Detectors Items
  2. sku: 5134795887236883
  3. CHANGZHOU HENGDUN ELECTRONIC TECHNOLOGY LTD SF19

CHANGZHOU HENGDUN ELECTRONIC TECHNOLOGY CO LTD SF19 Wireless 711181308259 Security Alarm Magnetic Door Window Burglar Sensor

Sf19 Changzhou Hengdun Electronic Technology Co Ltd Wireless Home Security Burglar Alarm Magnetic Sensor Door Window Super L

( Brand: Changzhou Hengdun Electronic Technology Co Ltd ), ( Manufacturer Part Number: SF19 ), ( Part Type: Security Alarm Sensor ), ( Battery Cell Type: Alkaline ), ( Power Source: Battery Powered ), ( Noise Level: 110 Db ), ( Country Of Origin: China ), ( Switch Style: Slide Switch ), ( Batteries Included : Yes ), ( Product Dimensions: 1.97l X 1.57w X 0.59h ), ( Shape: Square ), ( Installation Method: Self-adhesive ), ( Is Discontinued By Manufacturer: No ), ( Control Method: Touch ), ( Item Weight: 1.25 Ounces ), ( Special Features: Easy To Install ), ( Number Of Batteries: 3 Lr44 Batteries Required. ), ( Color: White ), ( Sensor Technology: Contact Sensor ), ( Compatible Devices: Home Security System ), ( Voltage: 4.5 Volts ), ( Size: Small ), ( UPC: 711181308259 )

Review CHANGZHOU HENGDUN ELECTRONIC TECHNOLOGY CO LTD Wireless Home Security Burglar Alarm Magnetic Sensor Door Window Super

The Changzhou Hengdun SF19 wireless security burglar alarm magnetic sensor is a compact and effective security solution for securing doors and windows in your home or business. This magnetic sensor is designed to detect any opening or closure of the protected area, triggering an alarm when intrusion is detected.

Measuring only 7.5 cm x 3.5 cm x 1.4 cm, the SF19 is a discreet and unobtrusive addition to any security system. It utilizes wireless technology, allowing for easy installation and flexible placement without the need for wires or cables. The sensor operates on a frequency of 433.92 MHz and has a transmission distance of up to 100 meters, ensuring reliable communication between the sensor and the main control panel.

The SF19 magnetic sensor is equipped with a powerful 12V DC magnetic reed switch, which can detect magnetic fields created by doors or windows being opened. The sensor has a wide detection angle of up to 15 degrees, making it suitable for securing various types of doors and windows, including hinged doors, sliding doors, and windows.

The sensor is also designed to be weather-resistant, making it suitable for both indoor and outdoor use. It features a waterproof IP65 rating, ensuring that it can withstand harsh weather conditions, such as rain, snow, and extreme temperatures.

The SF19 wireless magnetic sensor is easy to install, with no wiring or drilling required. It comes with pre-installed batteries, which have a long life of up to 3 years, reducing the need for frequent battery replacements. The sensor also features a testing function, allowing for easy self-diagnosis and troubleshooting.

This magnetic sensor is compatible with various types of alarm systems and control panels, making it a versatile and flexible security solution. It is designed to work with the Changzhou Hengdun SF11, SF12, SF13, and SF14 series alarm panels, as well as other compatible alarm systems.

In summary, the Changzhou Hengdun SF19 wireless security burglar alarm magnetic sensor is a reliable, effective, and convenient security solution for securing doors and windows. Its wireless design, weather-resistant construction, and long battery life make it an ideal choice for both residential and commercial applications. With its wide detection angle and easy installation, the SF19 magnetic sensor provides peace of mind and added security for your property.

Pros and Cons of Buying Changzhou Hengdun SF19 Wireless Security Magnetic Sensor for Doors and Windows

1. Pros:

a. Easy Installation: The SF19 wireless magnetic sensor is simple to install, as it doesn't require any wiring or drilling.

b. Long Battery Life: The sensor uses a CR2032 battery that can last up to 3 years, reducing the frequency of battery replacements.

c. Adjustable Sensitivity: The sensitivity of the sensor can be adjusted to accommodate different door and window sizes or user preferences.

d. Instant Alerts: The SF19 sensor sends an alarm signal to the control panel and the connected smartphone app as soon as the magnetic contact is broken, ensuring quick response to potential intrusions.

e. Cost-Effective: Compared to wired systems or professional installation services, the SF19 wireless magnetic sensor is a budget-friendly option for securing doors and windows.

2. Cons:

a. Limited Range: The SF19 sensor has a limited transmission range of about 30 meters in an open space, which might not be sufficient for large properties.

b. Dependent on the Main Control Panel: The magnetic sensor relies on the main control panel to function effectively, so if the control panel is not compatible or malfunctions, the sensor may not work optimally.

c. False Alarms: Magnetic sensors can sometimes trigger false alarms due to wind, vibrations, or other external factors, which might lead to unnecessary anxiety or inconvenience.

3. Conclusion:

The Changzhou Hengdun SF19 wireless security magnetic sensor offers several advantages, including easy installation, long battery life, adjustable sensitivity, instant alerts, and cost-effectiveness. However, it also has some drawbacks, such as a limited transmission range, dependency on the main control panel, and susceptibility to false alarms.

4. Recommendation:

If you're looking for a budget-friendly and easy-to-install solution for securing doors and windows in a small to medium-sized property, the Changzhou Hengdun SF19 wireless security magnetic sensor could be a suitable option. However, it's essential to consider the potential limitations, such as the transmission range and false alarm risk, and ensure that the main control panel is compatible and reliable.

Details:

Yes, Battery Alkaline, Batteries required. Yes, Product Dimensions 1.97 L x 1.57 W 0.59 H, Shape Square, Installation Method Self-Adhesive, Pile Alkaline, Is Discontinued By Manufacturer No, Changzhou Hengdun Electronic Technology Co Ltd, Item Package Quantity 1, Control Touch, Weight 1.25 ounces, Special Features Easy to Install, Number of Batteries 3 LR44 batteries required. Installation instruction: How to install?: There is double-sided adhesive on the Alarm and Magnet box, just peel stick doors. Storm Windows: Can be installed in doors /windows refrigerator/drawer and other special places.

EASILY INSTALLATED - in pool doors /refrigerator/drawer/freezers/interior door for kids safety. ALARM ACTIVATED - when the parts are separated, recombined stops. Included, voltage 4.5 volts , Brand HENDUN, Size small. Place the main unit and magnetic strip together.

Included, Part Number SF19, Mounting Type self-adhesive, Color White, Sensor Technology Contact Sensor, Compatible Devices Home Security System, Batteries 3 LR44 batteries required. Door alarm size: veritable little body big functions. And the alarm is in constant mode. Battery can last longer.

Wireless Home Security Burglar Alarm, Magnetic Sensor Door Window Super Loud 110Db, Pool Alarm for Kids Pack of 4:: Item model number SF19, Battery Cell Type Alkaline, Power Source Powered, Noise Level 110 dB, Country Origin China, Switch Slide switch, Batteries Included. Turn off the alarm first. Pool door alarm for kids safety: The will sound when a child opens the door, and continue to until an adult turn it off. CHIME MODE - is ideal to prompt you when child, guests or dementia patients are opening the door.

Detector mode: magnetic door sensor. Different location: Even if door and frame are not on the same flat surface, alarm works properly. Triggered immediately. When the door opened, it made a Ding dong sound.

specifications secimotions:

  • brand: Changzhou Hengdun Electronic Technology Co Ltd
  • mpn: Sf19
  • part type: Security Alarm Sensor
  • battery cell type: Alkaline
  • power source: Battery Powered
  • noise level: 110 Db
  • country of origin: China
  • switch style: Slide Switch
  • batteries included : Yes
  • product dimensions: 1.97l X 1.57w X 0.59h
  • shape: Square
  • installation method: Self-adhesive
  • is discontinued by manufacturer: No
  • control method: Touch
  • item weight: 1.25 Ounces
  • special features: Easy To Install
  • number of batteries: 3 Lr44 Batteries Required.
  • color: White
  • sensor technology: Contact Sensor
  • compatible devices: Home Security System
  • voltage: 4.5 Volts
  • size: Small
  • upc: 711181308259

payments secimotions:

  • credit card: Discover
  • other
  • wallet: Paypal

returns secimotions:

  • policy: Returns Accepted
  • paid by: Seller
  • time: 30 Days
  • method: Money back

shipping secimotions:

  • service: Standard
  • type: Fixed
  • class: Standard
  • transit: 3-8 Days
  • cost: $0.00

offer secimotions:

  • started: June 25, 2025
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • quantity: 1

general secimotions:

  • condition: New
  • Surveillance Smart Home Electronics > Home Surveillance > Sensors Motion Detectors

seller secimotions:

  • # reviews: 36
  • rating: 100.0%
  • city: Denver, Colorado
part type: security alarm sensor, battery cell type: alkaline, power source: battery powered, noise level: 110 db, country of origin: china, switch style: slide switch, batteries included: yes, product dimensions: 1.97l x 1.57w x 0.59h, shape: square, installation method: self-adhesive, is discontinued by manufacturer: no, control method: touch, item weight: 1.25 ounces, special features: easy to install, number of batteries: 3 lr44 batteries required., sensor technology: contact sensor, compatible devices: home security system, voltage: 4.5 volts, size: small,
category: electronics > surveillance smart home electronics > home surveillance > sensors motion detectors, color: white, sku: 5134795887236883,

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