SKU: 3769831854

AJAX DoorProtect Plus Jeweller Wireless Opening, Shock, and Tilt Detector, Black

Sale price$495.56 Regular price$550.62
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

AJAX DoorProtect Plus Jeweller Wireless Opening, Shock, and Tilt Detector, BlackAdvanced 3 in 1 Protection for Every Entry Point Secure your home or business with the AJAX DoorProtect Plus Jeweller, a sophisticated wireless detector that offers three layers of security for any door or window. This device instantly detects opening, shock, and changes in tilt, providing comprehensive protection against intrusion. Its advanced sensors are designed to protect even windows left open for ventilation, as the built in accelerometer will

Advanced 3-in-1 Protection for Every Entry Point

Secure your home or business with the AJAX DoorProtect Plus Jeweller, a sophisticated wireless detector that offers three layers of security for any door or window. This device instantly detects opening, shock, and changes in tilt, providing comprehensive protection against intrusion. Its advanced sensors are designed to protect even windows left open for ventilation, as the built-in accelerometer will register vibrations, impacts from attempted force, or any change in vertical angle. Housed in a sleek black casing, it seamlessly blends with your interior while offering powerful, professional-grade security.

Key Features:

  • Triple-Sensor Detection: Combines a high-end reed switch for opening detection with a sensitive accelerometer that registers shock, vibration, and tilt. The tilt sensor's activation threshold is adjustable from 5° to 25°.
  • Jeweller Wireless Technology: Employs Ajax's proprietary Jeweller radio technology for secure, encrypted two-way communication with the hub at a distance of up to 1,200 meters in open space. It features frequency hopping to prevent jamming and ensure reliable alarm delivery.
  • Adjustable Sensitivity: The shock sensor has three adjustable sensitivity levels, allowing you to fine-tune the detector to your specific environment and prevent false alarms.
  • External Detector Input: Includes a terminal for connecting a third-party wired detector with a normally closed (NC) contact type, expanding your security system's capabilities.
  • Long Battery Life: Operates for up to 5 years on the pre-installed CR123A battery, minimizing maintenance. The system will notify you well in advance when the battery needs replacing.
  • Effortless Installation: Ready to work straight out of the box. The SmartBracket mount allows for quick, easy installation without disassembling the detector's body. Connecting to an Ajax hub is as simple as scanning a QR code with the app.

How It Works

The DoorProtect Plus consists of two parts: the detector and a magnet. The opening is detected by a British-made reed switch when the magnet moves away from the sensor. Simultaneously, the integrated accelerometer stands guard against forced entry attempts by detecting vibrations and impacts, or if an intruder tries to open a window that is tilted for ventilation. In case of any event, an alarm signal is sent to the Ajax hub in just 0.15 seconds.

In The Box:

  • DoorProtect Plus Jeweller Detector (Black)
  • SmartBracket Mounting Panel
  • CR123A Battery (pre-installed)
  • Large Magnet
  • Small Magnet
  • External Contact Connection Terminal
  • Installation Kit
  • Quick Start Guide

Technical Specifications

General
Type Wireless opening, shock, and tilt detector
Installation Indoor
Color Black
Detection Elements
Sensitive Elements 1 × Reed Switch, 1 × Accelerometer
Activation Threshold (Magnet) Small magnet: up to 1 cm; Large magnet: up to 2 cm
Shock Sensitivity 3 adjustable levels
Tilt Sensor Threshold Adjustable from 5° to 25°
External Detector Connection Yes, for third-party wired detectors with NC (normally closed) contact type
Jeweller Radio Technology
Compatibility All Ajax hubs and radio signal range extenders
Communication Range Up to 1,200 m (3,900 ft) in an open space
Communication Protocol Jeweller (868.0-868.6 MHz or other frequencies depending on sales region)
Security Block encryption with a dynamic key, frequency hopping, device authentication
Alarm Signal Delivery Time 0.15 s
Power & Enclosure
Power Supply 1 × CR123A battery, 3 V (pre-installed)
Battery Life Up to 5 years
Tamper Protection Yes
Dimensions Ø 20 × 90 mm (Ø 0.79″ × 3.54″)
Weight 29 g (1.02 oz)
Operating Temperature Range -10°C to +40°C (14°F to 104°F)
Operating Humidity Up to 75%
Protection Class IP50
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3769831854

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4.4 ★★★★★
Based on 11 reviews
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M
Verified Purchase
Mike M
Alexandria, US
★★★★★ 5
Nice upgrade 51mm for me
Color: Silver
This is my second 51mm machine. I never used the included handle or basket… I kept my existing HUGH IMS precision basket and bottomless portafilter. The temp and preinfusion are set and not adjustable but fine (reduced variables). I defeated the shut off by volume by setting higher than needed (wish that was easier to turn off). I like to manually shut off when I hit 30g on my scale. The machine will drip since there is not solenoid valve so I just pull the scale from the try when mouse tail breaks and drip starts. The steam wand and hot water dispenser is a massive upgrade (from Capresso EC50) and the real reason for my upgrade. I would have paid $50-100 more for the improvements listed… but I guess most people would not so this is about the best option for me with 51mm (keeping all the 51mm three lug portafilter stuff I own). 5 stars = for me and the price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
A
Verified Purchase
angelo gaz
Louisville, US
★★★★★ 5
Reliably makes a good cup of coffee!
Color: Rose Golden, Color: Rose Golden
This espresso machine is great. I wanted something simple and reliable and that’s exactly what it is. In fact, the espresso comes out with a nice creamy coffee froth on top and the flavor is excellent. I don’t normally write reviews, but I think this one is worth it and I want them to stay in business because I’ll probably be sending some of these out as gifts come next Christmas.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
W
Verified Purchase
walter Gmuer
Lowell, US
★★★★★ 4
Easy to use
Color: Silver
Easy to use compact and easy to set up pulls some great espresso shots
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
C
Verified Purchase
Caroline Stephany
West Palm Beach, US
★★★★★ 5
Authentic
Color: Black, Color: Black
This machine is amazing. We just returned from Italy and this is as close to a cafe as you can get. It leaves a dense foam on top from the high pressure water system making truly authentic. It is easy to use and clean!! I loved the size too as it fits perfectly on our shelf. Highly recommend if you want an italian cafe to enjoy!
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Reviewed in the United States on February 4, 2026
B
Verified Purchase
Bruce Hunt
Carnegie, US
★★★★★ 5
Bargain Espresso Machine Works Great
Color: Silver
Great espresso machine, and a bargain at only $100! Pulls perfect shots with a generous amount of crema. And, it comes with a high-quality tamper. Tips: When you first turn it on, remember to run the steam wand for a couple seconds to prime the system. Test/experiment with the grind to get it just right--40 seconds with my blade grinder is working for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 26, 2026

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