# Magnetic door and window opening detector Ajax 000001135 black — wireless magnetic contact sensor

**URL:** https://aio.lv/en/product--ajax-000001135--4111167
**Data updated:** 2025-12-29 15:37 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** Ajax
**Manufacturer code:** 000001135
**EAN:** 9990000000029
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 34.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 28.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ajax-000001135--4111167

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.89 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Ajax 000001135 is a black magnetic door and window opening detector designed to detect opening events via a reed/magnetic contact. Intended for use with Ajax security systems, this compact wireless sensor monitors doors and windows, triggering alarms when contacts separate. It is suitable for residential and small commercial installations, providing discreet perimeter protection and simple integration with the system.

## Long description

Ajax 000001135 is a compact wireless magnetic door and window opening detector in black, designed to detect opening events using a reed (magnetic) contact. Intended for use with Ajax security systems, the detector provides discrete perimeter monitoring for homes and small commercial objects, connecting wirelessly to the Ajax Hub and triggering alerts when the contact separates. The device includes two magnets and a pre-installed CR123A battery.
Advantages
The detector offers long-range wireless communication up to 1,200 meters in open space and supports connection to third-party detectors via uartBridge and ocBridge Plus. It uses authentication, encrypted signals and frequency-hopping to protect against interference and fraud, and features a tamper-resistant body. British-made reed switches ensure mechanical reliability for over 1,000,000 cycles, while two-way communication with Ajax Hub allows periodic testing and remote configuration. Power consumption is optimized according to distance from the hub for a battery life of up to 7 years when pinging once per minute.
Suitable for
Residential doors and windows
Small offices and commercial premises
Perimeter protection in multi-floor buildings
Integration with Ajax Hub or third-party systems via bridge modules
Key specifications
Detector type: Wireless magnetic contact
Mounting: Surface-mounted (SmartBracket)
Distance to magnet: Up to 1 cm (small magnet), up to 2 cm (big magnet)
Detecting element: Reed switch
Additional wired input: Available
Tamper protection: Available
Radio power & protocol: 20 mW, Jeweller (868.0–868.6 MHz)
Maximum range to hub: Up to 1,200 m (open area)
Power supply: CR123A battery, 3 V
Battery life: Up to 7 years (ping once per minute)
Operating temperature: 0°C to +50°C
Operating humidity: Up to 80%
Dimensions: 20 × 90 mm
How to use
Mount the main unit and magnet on the door and frame using the SmartBracket mounting plate — there is no need to disassemble the body for installation. Position the appropriate magnet so the gap between magnet and detector does not exceed the specified distance (1 cm for the small magnet, 2 cm for the big magnet). Connect the detector to the Ajax Hub with a single click in the Ajax app; the connection quality and detection area can be tested remotely. If required, connect external wired detectors to the additional input and integrate third-party devices via uartBridge or ocBridge Plus.
Usage recommendations
Install the detector indoors within the specified temperature and humidity ranges, place magnets aligned with the detector to ensure reliable contact detection, and perform regular remote tests via the Ajax Hub to verify battery status and communication quality.

## FAQ

### How much does the Magnetic door/window detector Ajax 000001135 cost, and is it available for purchase?

The price is 34.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 03.07.2026 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: 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/4111167/51434044_large.webp