# DIN rail twilight sensor ORNO OR-CR-231 with external boxed probe, 3000W, sensitivity 2–100 lx, IP65/IP20

**URL:** https://aio.lv/en/product--orno-or-cr-231--12070981
**Data updated:** 2026-03-12 21:50 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** ORNO
**Manufacturer code:** OR-CR-231
**EAN:** 5901752483972
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.49 €
**Prices and availability valid until:** 2026-08-07 23:59
**Price without VAT (21%):** 11.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--orno-or-cr-231--12070981

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

ORNO OR-CR-231 is a DIN-rail mounted twilight (dusk) sensor with an external probe housed in a junction box. Rated for up to 3000 W switching, it detects ambient light with adjustable sensitivity from 2 to 100 lux. The unit features IP20 protection for the DIN module and IP65 for the external probe, suitable for automatic lighting control in corridors, outdoor fixtures, façades and industrial installations.

## Long description

ORNO OR-CR-231 is a DIN-rail mounted twilight sensor designed for automatic switching of lighting circuits based on ambient light levels. The device includes an external light probe contained in a weatherproof junction box, allowing accurate measurement of outdoor or sheltered locations while the DIN module remains installed in a distribution enclosure. The sensor is suitable for control of lighting loads up to 3000 W and offers an adjustable sensitivity range to match different installation conditions.
Advantages
The separated external boxed probe provides IP65 protection at the sensing point while the DIN module is protected to IP20, ensuring reliable operation in mixed indoor/outdoor configurations. Adjustable sensitivity from 2 to 100 lux allows precise dusk/dawn switching for varied environments. The DIN-rail format enables tidy installation in standard distribution panels and simplifies wiring to existing switchgear. The device supports a high switching capacity suitable for large lighting circuits.
Suitable for
Automatic control of corridor and stairwell lighting
Switching outdoor fixtures and façade illumination
Industrial lighting where sensor must be mounted remotely from the distribution board
Energy-saving lighting control in warehouses and service areas
Key specifications
Mounting: DIN-rail module with external boxed light probe
Switching capacity: up to 3000 W (resistive load)
Sensitivity range: adjustable from 2 to 100 lux
Probe protection rating: IP65
DIN module protection rating: IP20
How to use
Install the DIN module on a standard 35 mm DIN rail inside the distribution cabinet and route the probe cable to the desired mounting location. Fix the external probe in a suitable position using the provided junction box to ensure the sensor faces ambient light without artificial interference. Connect the load and supply according to the wiring diagram provided by the manufacturer, then adjust the sensitivity control to the preferred lux level so the lighting switches at the required dusk/dawn point.
Usage recommendations
Position the external probe away from direct artificial light sources such as nearby lamps, reflected light from windows, or heat-emitting fixtures to avoid false switching. For outdoor applications, mount the boxed probe under a small overhang to reduce direct rain exposure, even though the probe itself is IP65. Verify load type and derating requirements when controlling inductive or capacitive loads and consult wiring instructions to ensure correct protective devices are used.

## FAQ

### How much does the DIN-rail twilight sensor ORNO OR-CR-231 cost, and is it available for purchase?

The price is 14.49 € (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 27.07.2026 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 ORNO 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 ORNO 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/12070981/67555882_large.webp