# Door and window sensor Nous NOUS-E3 ZigBee battery-powered wireless, magnetic contact

**URL:** https://aio.lv/en/product--nous-nous-e3--5044050
**Data updated:** 2025-12-31 13:07 (EET)
**Category:** Other goods
**Manufacturer:** Nous
**Manufacturer code:** NOUS-E3
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 19.85 €
**Prices and availability valid until:** 2026-10-23 23:59
**Price without VAT (21%):** 16.40 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--nous-nous-e3--5044050

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Monday | free |
| Pickup points | 01.10.2026 | 1.99 EUR |
| Courier delivery to door | 01.10.2026 | 4.99 EUR |

## Summary description

Wireless door and window sensor Nous NOUS-E3 uses ZigBee connectivity and battery power to detect open/close status via a magnetic contact. Designed for home security and automation, it integrates with ZigBee hubs to trigger alarms, notifications or smart scenes. Compact and easy to install on doors or windows, it helps monitor access and enhance safety.

## Long description

Smart ZigBee Door & Window Sensor NOUS E3 is a battery-powered wireless contact sensor designed to monitor doors and windows. It communicates over the Zigbee 3.0 protocol and integrates with the Nous Smart Home app for smartphone control. The compact sensor includes a main unit and a magnet, and is compatible with voice assistants such as Alexa and Google Assistant as well as IFTTT automation.
Advantages
The NOUS E3 provides reliable contact detection with a detecting distance up to 20 mm and low-power operation using a CR2 3V battery with an estimated service life of up to 5 years. Its small dimensions and light weight (29 g) make installation discreet. Zigbee 3.0 connectivity ensures stable integration into Zigbee-based smart home networks while Wi‑Fi/IEEE 802.15.4 compatibility supports broad ecosystem use.
Suitable for
Monitoring entrances and exterior doors
Securing windows and balcony doors
Integrating door/window status into home automation scenes
Triggering alerts or actions via Alexa, Google Assistant or IFTTT
Key specifications
Model: NOUS E3
Dimensions (main unit / magnet): 56 x 28 x 18 mm / 30 x 15 x 11 mm
Weight: 29 g
Battery type: CR2, 3 V; battery life: up to 5 years
Operating temperature: -10 °C to +50 °C
Detecting distance: ≤ 20 mm
Wireless: Zigbee 3.0; Communication standard: Wi‑Fi IEEE 802.15.4
Range (Wi‑Fi empty area): up to 90 m
Smartphone app: Nous Smart Home (Android 4.0+; iOS 8.0+)
Voice assistants: Alexa, Google Assistant; supports IFTTT
How to use
Mount the main unit and the magnet on the door and frame so that the gap between them does not exceed the detecting distance (≤ 20 mm). Insert a CR2 3 V battery and follow the pairing instructions in the Nous Smart Home app to add the sensor to a Zigbee network. Once paired, verify the sensor status in the app and set desired automations or notifications. Keep the device within recommended operating temperature limits for reliable performance.
Usage recommendations
For best results place the sensor on clean, dry surfaces and test the alignment before final mounting. Replace the CR2 battery when the app indicates low battery and avoid installing the sensor in locations exposed to extreme temperatures or moisture.

## FAQ

### How much does the Door & window sensor Nous NOUS-E3 ZigBee cost, and is it available for purchase?

The price is 19.85 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 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 Monday 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 Nous 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 Nous 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/5044050/69932221_large.webp