# Door contact sensor BLOW 2765# model HO-03IK magnetic reed switch

**URL:** https://aio.lv/en/product--blow-2765--11863671
**Data updated:** 2026-03-09 17:40 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** BLOW
**Manufacturer code:** 2765#
**EAN:** 5900804117940
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 19.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 16.11 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blow-2765--11863671

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

Wired door contact sensor BLOW 2765# (model HO-03IK) is a magnetic reed switch designed to detect opening and closing of doors or windows. The compact sensor pair mounts on frame and sash, closing the circuit when aligned. Suitable for basic alarm, security and access control systems where a simple, reliable door/window state input is required.

## Long description

Wired door contact sensor BLOW 2765# (model HO-03IK) is a magnetic reed switch intended to detect the open or closed state of doors and windows. The sensor consists of two compact parts: a magnet and a reed switch. When mounted on a frame and the corresponding sash or door, the circuit closes as the two parts align, providing a clear binary signal suitable for integration with alarm panels, access control units and other security inputs.
Advantages
The sensor offers a simple wired connection that ensures continuous power and a stable signal without reliance on batteries. Its compact dimensions allow discreet mounting on most door and window profiles. The magnetic reed design provides reliable mechanical operation with low power consumption at the input stage of a security system. Installation is straightforward and the device yields a clear open/closed status suitable for monitoring and automation.
Suitable for
Basic alarm systems and wired security installations
Access control systems requiring door state input
Window and door monitoring in residential and commercial buildings
Integration with automation systems for state-dependent actions
Key specifications
Type: Wired magnetic reed contact (magnet + switch)
Function: Detects open/closed state of doors and windows
Mounting: Surface mount on frame and sash
Signal: Binary closed/open circuit output
Construction: Compact two-piece design for discreet installation
How to use
Position the magnet and the reed switch so they align when the door or window is closed, keeping the specified gap recommended by the manufacturer for reliable operation. Secure both parts to the frame and sash using screws or adhesive as appropriate for the surface. Connect the wired terminals to the corresponding input zone on the alarm panel or access control device following the wiring diagram and ensuring correct polarity where applicable. Perform a functional test by opening and closing the door or window to verify the panel registers the state changes consistently.
Usage recommendations
For best performance, install the sensor away from strong external magnetic fields and ensure the mounting surfaces are clean and flat. Verify compatibility with the control panel input type (normally closed or normally open) before finalizing connections. Regularly inspect mounting and wiring during maintenance checks to maintain reliable detection.

## FAQ

### How much does the Door contact sensor BLOW 2765# HO-03IK cost, and is it available for purchase?

The price is 19.49 € (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 09.07.2026 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 BLOW 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 BLOW 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

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