---
product_id: 486388169
title: "Seco-Larm E-931-S35RRQ NIR Reflective Photoelectric Sensor (Pack of 2); For outdoors gates, garage doors, etc; Weatherproof (IP66) construction for indoor/outdoor usage; Adjustable sensing distance"
brand: "seco-larm"
price: "HK$1964"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/486388169-seco-larm-e-931-s35rrq-nir-reflective-photoelectric-sensor-pack
store_origin: HK
region: Hong Kong
---

# Ultra-fast 10ms response time Adjustable sensing range 0.5'–35' IP66 Weatherproof for all conditions Seco-Larm E-931-S35RRQ NIR Reflective Photoelectric Sensor (Pack of 2); For outdoors gates, garage doors, etc; Weatherproof (IP66) construction for indoor/outdoor usage; Adjustable sensing distance

**Brand:** seco-larm
**Price:** HK$1964
**Availability:** ✅ In Stock

## Summary

> 🚪 Secure your space with lightning speed and weatherproof confidence!

## Quick Answers

- **What is this?** Seco-Larm E-931-S35RRQ NIR Reflective Photoelectric Sensor (Pack of 2); For outdoors gates, garage doors, etc; Weatherproof (IP66) construction for indoor/outdoor usage; Adjustable sensing distance by seco-larm
- **How much does it cost?** HK$1964 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/486388169-seco-larm-e-931-s35rrq-nir-reflective-photoelectric-sensor-pack)

## Best For

- seco-larm enthusiasts

## Why This Product

- Trusted seco-larm brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lightning-Fast Response:** 10ms max response time guarantees instant detection, keeping your property secure without delay.
- • **Plug & Play Convenience:** Comes with pre-wired 6ft cord and mounting hardware for effortless installation.
- • **Dual Voltage Compatibility:** Operates seamlessly on 12-24V DC/AC, fitting a wide range of power setups with ease.
- • **Built to Brave the Elements:** IP66-rated weatherproof design ensures flawless outdoor performance rain or shine.
- • **Precision Detection on Your Terms:** Customizable sensing distance from 0.5 to 35 feet adapts perfectly to your gate or garage setup.

## Overview

The Seco-Larm E-931-S35RRQ is a compact, weatherproof (IP66) NIR reflective photoelectric sensor designed for outdoor gates and garage doors. It features an adjustable sensing range from 0.5 to 35 feet, ultra-fast 10ms response time, and supports 12-24V DC/AC operation. Included mounting hardware and a pre-wired 6ft cord make installation quick and hassle-free.

## Description

Seco-Larm E-931-S35RRQ NIR Reflective Photoelectric Sensor (Pack of 2); For outdoors gates, garage doors, etc; Weatherproof (IP66) construction for indoor/outdoor usage; Adjustable sensing distance

## Features

- For outdoors gates, garage doors, etc; Weatherproof (IP66) construction for indoor/outdoor usage
- Dark ON operation, Adjustable sensing distance, Compact size
- 12 240VDC / 24 240VAC Operation, Current: Up to 40mA@12VDC
- Bracket and mountinghardware Included, Pre wired 6ft (1.8m) cord
- Sensing Range: 0.5' to 35' (0.1 11m), Response Time: 10ms (Max)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions L x W x H | 17.3 x 12.7 x 11.8 centimetres |
| Package Weight | 1.29 Kilograms |
| Brand | Seco-Larm |
| Part number | E-931-S35RRQ |
| Guaranteed software updates until | unknown |

## Images

![Seco-Larm E-931-S35RRQ NIR Reflective Photoelectric Sensor (Pack of 2); For outdoors gates, garage doors, etc; Weatherproof (IP66) construction for indoor/outdoor usage; Adjustable sensing distance - Image 1](https://m.media-amazon.com/images/I/61UtONozhXL.jpg)
![Seco-Larm E-931-S35RRQ NIR Reflective Photoelectric Sensor (Pack of 2); For outdoors gates, garage doors, etc; Weatherproof (IP66) construction for indoor/outdoor usage; Adjustable sensing distance - Image 2](https://m.media-amazon.com/images/I/512Cgl9DMLL.jpg)

## Questions & Answers

**Q: This will work on ghost control systems**
A: We asked the Manufacturer and they replied: "We’ve had these units used in “haunted houses” to control some of the displays to scare people.  But not entirely sure of what they are asking for."

**Q: What is the ambient illuminance rating for the reflective photoelectric sensor?**
A: We asked the Manufacturer and they replied: "It is an IR sensor so we would say no ambient illumination."

**Q: Do they operate in daylight ? What is dark on ?**
A: Yes, they work in daylight.  The Dark-On/Light-On has to do with the relay status when the unit is powered off.

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**Shop now:** [https://www.desertcart.hk/products/486388169-seco-larm-e-931-s35rrq-nir-reflective-photoelectric-sensor-pack](https://www.desertcart.hk/products/486388169-seco-larm-e-931-s35rrq-nir-reflective-photoelectric-sensor-pack)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-23*