# Door/window sensor Ajax DoorProtect Plus Wireless, White, CR123A battery, 3V, 60-month life, 20×20×90 mm

**URL:** https://aio.lv/en/product--ajax-3810113wh1-48231140149--6834557
**Data updated:** 2026-04-03 16:14 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** Ajax
**Manufacturer code:** 38101.13.WH1 48231140149
**EAN:** 4823114014918
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 61.99 €
**Prices and availability valid until:** 2026-08-13 23:59
**Price without VAT (21%):** 51.23 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ajax-3810113wh1-48231140149--6834557

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Friday | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

Ajax DoorProtect Plus is a wireless door/window sensor in white designed for intrusion detection. It uses RF wireless connectivity, is powered by a CR123A 3 V battery with up to 60 months battery life, and measures 20×20×90 mm. The sensor detects opening/closing of doors and windows and integrates into Ajax security systems for residential and commercial monitoring.

## Long description

Ajax DoorProtect Plus Wireless in white is a compact door and window opening detector designed for integration with Ajax security systems. The sensor measures 20×20×90 mm and uses RF wireless communication to report opening and tampering events to the system hub. It is powered by a preinstalled CR123A 3 V battery providing long service life and supports connection of a wired external contact for third‑party detectors. Built-in reed switches detect opening and closing, and an accelerometer senses vertical tilt, impacts and vibrations to register attempts to force or manipulate the protected entry.
Advantages
The device combines reliable magnetic detection with an accelerometer for multi‑vector intrusion sensing, allowing protection of doors, windows and even roof windows left ajar for ventilation. RF encryption, authentication and jamming detection enhance communication security with the hub. The sensor comes ready to use with the battery preinstalled and offers long battery life, reducing maintenance. A tamper alarm and the option to connect external wired detectors expand installation flexibility.
Suitable for
 Residential entry doors and windows
 Commercial office doors and storefront windows
 Roof and attic windows that may remain slightly open for ventilation
 Integration into wireless Ajax alarm systems and monitored security setups
Key specifications
 Form factor: compact surface-mounted detector, 20×20×90 mm
 Power source: CR123A 3 V battery (preinstalled)
 Battery life: up to 60 months under normal use
 Interface: RF wireless communication with hub
 Detection methods: magnetic reed switches for opening/closing, accelerometer for tilt, impact and vibration
 External input: contact for connecting a wired third‑party detector
 Color: white
 Mounting: SmartBracket-compatible surface mount
How to use
Mount the sensor and its magnet on the door or window frame and the moving leaf so that the magnetic elements align when closed, maintaining the recommended gap specified in the installation instructions. The device is supplied with the battery already installed; add it to the Ajax hub via the mobile application with a single click and follow app prompts to assign location and settings. If required, connect a wired external contact to the detector’s input according to the wiring diagram, and secure the housing on the SmartBracket to enable tamper protection.
Usage recommendations
Place the sensor on rigid parts of doors and windows to ensure stable magnetic contact and reliable accelerometer readings. Verify RF signal strength from the mounting point to the hub during setup and relocate either device or add a signal range extender if signal is weak. Periodically check the device status in the hub application and replace the battery when the system indicates low power.

## Specifications

| Feature | Value |
|---|---|
| Interface | RF Wireless |
| Weight | 0.029 kg |
| Certification | DSTU EN 50131 |
| Security algorithms | AES |
| Operating relative humidity (H-H) | 0 - 75 |
| Battery type | CR123A |
| Operating temperature (T-T) | -10 - 40 |
| Height | 90 mm |
| LED indicators | Y |
| Width | 20 mm |
| Depth | 20 mm |
| Connectivity technology | Wireless |
| Product colour | White |
| Compatible products | Ajax Hub, Hub Plus, Hub 2, ReX |
| Quick start guide | Yes |
| Battery voltage | 3 V |
| Transmission distance | 1200 m |
| Suitable for | Door/Window |
| Battery life | 60 month(s) |
| Ambient temperature (max) | 40 °C |
| Ambient temperature (min) | -10 °C |
| Battery included | Yes |
| Suitable for indoor use | Yes |
| Tamper protection | Yes |

## FAQ

### How much does the Ajax DoorProtect Plus wireless door/window sensor cost, and is it available for purchase?

The price is 61.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 106 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Friday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Ajax products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Ajax service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/6834557/68157594_large.webp