# Optical detector Ei Electronics Ei650RF

**URL:** https://aio.lv/en/product--ei-electronics-ei650rf-3xd--1466478
**Data updated:** 2026-01-06 11:05 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** ei electronics
**Manufacturer code:** Ei650RF-3XD
**EAN:** 5099383005349
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 108.49 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 89.66 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ei-electronics-ei650rf-3xd--1466478

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

The Ei Electronics Ei650RF is a wireless optical detector powered by a 3V lithium battery. It features a diameter of 11.5 cm and a height of 45 mm, weighing 210 g. This device is designed for reliable smoke detection, ensuring safety in your home or office. Its compact size and lightweight design make it easy to install and maintain, providing peace of mind with advanced smoke sensing technology.

## Long description

The Ei Electronics Ei650RF optical smoke alarm uses a photoelectric sensor to detect low-energy smoke particles, making it particularly effective at sensing smouldering fires while remaining suitable for all common domestic fire types. The unit is powered by a sealed 3V lithium battery with a 10-year service life under normal use and has a compact form factor (diameter 11.5 cm, height 45 mm, weight 210 g). The alarm is supplied with a preinstalled Ei600MRF RadioLINK+ module to enable wireless communication with compatible Ei Electronics devices; up to 12 RF devices can be interconnected. In standby there are no visible or audible indicators, which makes the alarm appropriate for bedrooms and children’s rooms.
Advantages
The Ei650RF combines a high-performance optical detection chamber with a sealed mesh screen to reduce insect and dust ingress and EMC protection to minimise false alarms. A twist-on mounting base prevents battery drain during storage because the alarm is not powered until fitted. The large test/silence button allows easy regular testing and temporarily silencing nuisance alarms for 10 minutes. The alarm performs automatic self-checks of the sensor chamber, battery voltage and internal circuitry every 40 seconds and signals any fault with LED flashes and/or beeps.
Suitable for
 Bedrooms and children’s rooms where visual/audible standby indicators are undesirable
 Homes and small offices requiring interlinked wireless smoke detection (up to 12 devices)
 Areas where sensitivity to smouldering fires is important (e.g., living rooms, bedrooms)
Key specifications
 Type: Optical (photoelectric) smoke alarm
 Model/MPN: Ei650RF-3XD
 Power: Sealed 3V lithium battery, 10-year life
 Wireless: Ei600MRF RadioLINK+ preinstalled, up to 12 RF devices interconnectable
 Dimensions: Ø 11.5 cm, height 45 mm
 Weight: 210 g
 Fault/self-check interval: Every 40 seconds (sensor, battery, circuitry)
How to use
Install the twist-on mounting base to the chosen ceiling or wall location using the multiple fixing points, then twist the alarm onto the base to power the unit. Use the large Test button to perform regular checks: press once to start a progressive-volume test sequence and verify alarm operation. If the alarm is triggered by nuisance sources such as cooking fumes, press the Test/Silence button to mute the alarm for 10 minutes. The unit will continue automatic self-checks and signal any fault conditions through red LED flashes and/or beeps.
Usage recommendations
Install alarms on every level of the property and in sleeping areas; avoid mounting directly over stoves or in very dusty/dirty locations. Test the alarm regularly using the Test button and replace the alarm according to manufacturer lifetime guidance once the 10-year battery life is exceeded or if persistent faults occur.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.21 kg |
| Battery technology | Lithium |
| Operating relative humidity (H-H) | 15 - 95 |
| Package weight | 260 g |
| Operating temperature (T-T) | -10 - 40 |
| Power source | Battery |
| Alarm decibels | 85 dB |
| Height | 45 mm |
| LED indicators | Y |
| Connectivity technology | Wireless |
| Product colour | White |
| Diameter | 115 mm |
| Package depth | 120 mm |
| Package height | 56 mm |
| Package width | 150 mm |
| Easy to install | Yes |
| Battery voltage | 3 V |
| Detector type | Optical detector |
| Test button | Yes |
| Screws included | Yes |
| Product life | 10 year(s) |

## FAQ

### How much does the Optical detector Ei Electronics Ei650RF cost, and is it available for purchase?

The price is 108.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 171 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 07.07.2026 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. 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 ei electronics 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 ei electronics 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/1466478/57963574_large.webp