--- product_id: 68587740 title: "Dual Laser Detector Alarm Beam Sensor Indoor 300m Outdoor 60m Infrared Detector 6.7\"x3.1\"" brand: "dahszhi" price: "€ 84.09" currency: EUR in_stock: true reviews_count: 13 category: "Dahszhi" url: https://www.desertcart.hr/products/68587740-dual-laser-detector-alarm-beam-sensor-indoor-300m-outdoor-60m store_origin: HR region: Croatia --- # Auto power adjustment extends lifespan 300m indoor detection range False alarm immunity in rain & mist Dual Laser Detector Alarm Beam Sensor Indoor 300m Outdoor 60m Infrared Detector 6.7"x3.1" **Brand:** dahszhi **Price:** € 84.09 **Availability:** βœ… In Stock ## Summary > 🚨 Lock down your space with laser precision β€” security that’s always a step ahead! ## Quick Answers - **What is this?** Dual Laser Detector Alarm Beam Sensor Indoor 300m Outdoor 60m Infrared Detector 6.7"x3.1" by dahszhi - **How much does it cost?** € 84.09 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/68587740-dual-laser-detector-alarm-beam-sensor-indoor-300m-outdoor-60m) ## Best For - dahszhi enthusiasts ## Why This Product - Trusted dahszhi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Smart Power Management:** Automatic transmit power adjustment maximizes component life while reducing energy consumption. - β€’ **Ultra-Long Indoor Range:** Detects movement up to 300 meters indoors, covering expansive office or home spaces effortlessly. - β€’ **Weatherproof Reliability:** Advanced optics and design resist false triggers from rain, snow, and environmental noise. - β€’ **Precision Twin-Beam Security:** Dual infrared beams ensure pinpoint perimeter protection with minimal false alarms. - β€’ **Seamless Installation & Maintenance:** Built-in laser alignment and removable electronics make setup and upkeep a breeze. ## Overview The Dahszhi Dual Laser Detector Alarm Beam Sensor delivers robust perimeter security with dual infrared beams capable of detecting up to 300 meters indoors and 60 meters outdoors. Its advanced lensed optics minimize false alarms caused by environmental factors like rain and animals. Featuring automatic power adjustment for extended device longevity and a built-in laser alignment system, this sensor is ideal for professional-grade security in offices, homes, and commercial spaces. ## Description Specification Number of Beams: 2 beams Install Distance(Max.) Outdoor: 60m/ Indoor: 300m Dtection Mode: 2 beams blocked simultaneous Optical Source: Infrared digital pulse beam Relay Contact Output: NO.NC Response Speed: 50 ~ 700msec Contact Rating Output: AC/DC30V 0.5AMax Operation Temperature: -25 Β°C - 55 Β°C Operation Humidity: 5% - 95% RH (relative humidity) Power Supply: DC 13.8 ~ 24V AC 11 ~ 18V P β‰₯ 15W Product Feature 1.The sensor has a built-in laser beam alignment system that speeds accurate, reliable positioning. 2.Ensure the safety of your property by adding this perimeter-style photobeam sensor to your security system. Package Content 1 x Laser detector laser alarm beam sensor(1x transmiter, 1x receiver) 1 x Installation accessories(Including screws) 1 x Operating instruction. Review: Works well and not that hard to set up. - This review is for a "Dahszhi Dual Laser Detector Alarm Beam Sensor Indoor 300m Outdoor 60m Infrared Detector" This is a reliable alarm that doesn't give false trips and its not tripped by cats, dogs etc. (unless they are over 3 feet tall). The internal NC/NO switch is rated at only a few milliamps so you'll burn it if you try to drive a load directly. A few basic components have to be added for a complete circuit. A relay, transistor or triac, alarm buzzer or equivalent (depending on application) and a power supply at both ends. My installation has the receiver and transmitter about 60 feet apart. The setup isn't hard and tools are provided to simplify it. A small mirror assembly helps with aiming and a signal strength test point (VDC) makes it so you can tell when the beams are properly aligned. The most involved part is running wires. === Update: Had one of these running almost a year now, 24/7 with no problems. I bought a second set that establishes a beam across the entire width of our front yard and rings a door bell. Visitors don't have to press a doorbell button because they trip this beam and it does the same thing. And anyone approaching the carport trips it as well. These units are well sealed from weather and I've found them to be very reliable. I was using one with a 12V 30 milliamp relay coil for a while, but that may be pushing the operational limits so I added a simple transistor circuit to reduce the current through the normally open contacts to about 4 milliamps. A cat was able to trip the doorbell by jumping off the car hood -- through the laser beam, but aside from that, no false alarms. :) I don't see any issue about how well these units are constructed. They are built well for the application. The entire electronics assembly is easy to completely remove from the housing for maintenance if it ever becomes necessary. Very good product. Review: Indoor :excellence prorformance - Installed 40 of this puppies. They have no issue with distance. 4 of them shoot through a cut out in a wall halph way from the receiver. They work as advertised. Each shot was 260 to 310 feet. ## Features - Reliable & Safe: Yohii laser alarm with twin infrared beams provide reliable perimeter security, minimizing false alarms from falling leaves, birds, etc. Lensed optics reinforces beam strength & provides excellent immunity to false alarms due to rain, snow, mist, etc. - Principle: This is Alarm Two Beam photoelectric infrared detector ABT: 60m. Install them at the opposite positions. Then there is a infrared area between these two detector parts. When someone passes the infrared region for an adjusted response time, the detector will send alarm signal to the security alarm host (which not included here) work with 2pcs power apater - Powerful Function: Holographic spot real:time report. Unique displacing receiving, transmitting parts with big power. Full function checking, self:adaption in environment and trouble locking - Durable: Powerful Automatic Adjustment Design:The transmit power will be adjusted automatically according to the environmental conditions, which greatly extends the life of the launching tube, while lowering power consumption - Scope of Application: Great to be installed for security system in school, office building, hospital, home yard, etc. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07CSHT8RB | | Best Sellers Rank | #67,040 in Electronics ( See Top 100 in Electronics ) #269 in Motion Detectors (Electronics) | | Brand | Dahszhi | | Color | Black | | Compatible Devices | Security Systems | | Customer Reviews | 4.0 out of 5 stars 131 Reviews | | Manufacturer | Shenzhendahongsuanzhidianzishangwuyouxiangongsi | | Maximum Range | 300 Meters | | Mfr Part Number | 136 | | Model Number | 5823824122 | | Mounting Type | Wall Mount | | Power Source | External Power Supply | | Sensor Technology | Infrared Sensor | | Size | 6.7" x 3.1" | | UPC | 604213498229 | ## Product Details - **Brand:** Dahszhi - **Color:** Black - **Maximum Range:** 300 Meters - **Mounting Type:** Wall Mount - **Power Source:** External Power Supply ## Images ![Dual Laser Detector Alarm Beam Sensor Indoor 300m Outdoor 60m Infrared Detector 6.7"x3.1" - Image 1](https://m.media-amazon.com/images/I/51sU3gMtUCL.jpg) ![Dual Laser Detector Alarm Beam Sensor Indoor 300m Outdoor 60m Infrared Detector 6.7"x3.1" - Image 2](https://m.media-amazon.com/images/I/512vZqL3NSL.jpg) ![Dual Laser Detector Alarm Beam Sensor Indoor 300m Outdoor 60m Infrared Detector 6.7"x3.1" - Image 3](https://m.media-amazon.com/images/I/61bfEfwuclL.jpg) ![Dual Laser Detector Alarm Beam Sensor Indoor 300m Outdoor 60m Infrared Detector 6.7"x3.1" - Image 4](https://m.media-amazon.com/images/I/61PBwf2XXWL.jpg) ![Dual Laser Detector Alarm Beam Sensor Indoor 300m Outdoor 60m Infrared Detector 6.7"x3.1" - Image 5](https://m.media-amazon.com/images/I/61yqEzKn56L.jpg) ## Questions & Answers **Q: Does this make a noise when the beam is broken ?** A: No. You must use a relay to power a siren or strobe. All the beam sensors operate this way. You have open or closed contacts. I use 4 of these sensors connected to a niles ipc6 intelligent power controller to turn on an electric fence, a 135 db siren, strobe lights, a laser show and multiple light beams. All trigger on in a programmed on and off sequence when the beam is tripped. **Q: Minimum Spacing between sensors?** A: 6 ft was the shortest distance I achieved **Q: What is the signal output when a person is detected?** A: Good day,this item the signal output when a person is detected is 100 meter **Q: Are they just IR sensors, what are power supply they need ?** A: Need 12v power supply,have a Positive and negative ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works well and not that hard to set up. *by J***T on January 26, 2022* This review is for a "Dahszhi Dual Laser Detector Alarm Beam Sensor Indoor 300m Outdoor 60m Infrared Detector" This is a reliable alarm that doesn't give false trips and its not tripped by cats, dogs etc. (unless they are over 3 feet tall). The internal NC/NO switch is rated at only a few milliamps so you'll burn it if you try to drive a load directly. A few basic components have to be added for a complete circuit. A relay, transistor or triac, alarm buzzer or equivalent (depending on application) and a power supply at both ends. My installation has the receiver and transmitter about 60 feet apart. The setup isn't hard and tools are provided to simplify it. A small mirror assembly helps with aiming and a signal strength test point (VDC) makes it so you can tell when the beams are properly aligned. The most involved part is running wires. === Update: Had one of these running almost a year now, 24/7 with no problems. I bought a second set that establishes a beam across the entire width of our front yard and rings a door bell. Visitors don't have to press a doorbell button because they trip this beam and it does the same thing. And anyone approaching the carport trips it as well. These units are well sealed from weather and I've found them to be very reliable. I was using one with a 12V 30 milliamp relay coil for a while, but that may be pushing the operational limits so I added a simple transistor circuit to reduce the current through the normally open contacts to about 4 milliamps. A cat was able to trip the doorbell by jumping off the car hood -- through the laser beam, but aside from that, no false alarms. :) I don't see any issue about how well these units are constructed. They are built well for the application. The entire electronics assembly is easy to completely remove from the housing for maintenance if it ever becomes necessary. Very good product. ### ⭐⭐⭐⭐⭐ Indoor :excellence prorformance *by N***N on August 18, 2025* Installed 40 of this puppies. They have no issue with distance. 4 of them shoot through a cut out in a wall halph way from the receiver. They work as advertised. Each shot was 260 to 310 feet. ### ⭐⭐⭐⭐ They work well--- Eventually *by L***Y on June 11, 2025* After I finally got it working it performs well. Instructions are a clear detriment. The alignment mirror device is not clearly explained, and in the end, a useless component. Just align the two unit by eyeball and use a voltmeter to confirm sufficient accuracy. I needed these to alert intrusions by javelinas, coyotes, and donkeys in my Arizona back yard. They are positioned about 100 ft apart and operate correctly. However, I had setup the trial in my garage, about 10 ft apart. Here, I could never get them to function consistently. After hours of messing with settings and connections, I realized that the lenses needed considerable dampening. The darkly tinted housings accomplish this, which became apparent after I covered one pair of lenses with masking tape. I had put the masking tape there so that I could use a laser to assist with alignment. To my surprise, that is when they started to function as desired. I never considered putting the housings on in the trial setup, since I was still dealing with wiring issues and internal adjustment mechanisms. Hard to do with covers installed. Again, this could have been mentioned in the instructions. Seems that not everyone is as persistent as me and simply return them to Amazon out of frustration. ## Frequently Bought Together - Dahszhi Dual Laser Detector Alarm Beam Sensor Indoor 300m Outdoor 60m Infrared Detector 6.7"x3.1" - Tokatuker Wired Alarm Siren Horn 15W DC 6 to 12V Security Siren with Bracket for Home Security Alarm System - SmoTecQ 12V 2A Power Supply AC Adapter 2 Pack for CCTV Security Camera, Led Strip Lights, Router, Printer, Breast Bump and Other 12 Volt Electronics Devices Less Than 2 Amp --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/68587740-dual-laser-detector-alarm-beam-sensor-indoor-300m-outdoor-60m](https://www.desertcart.hr/products/68587740-dual-laser-detector-alarm-beam-sensor-indoor-300m-outdoor-60m) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-07*