--- product_id: 68587740 title: "Dahszil Dual Laser Alarm Beam Sensor,300m Outdoor 60m Infrared Detector" brand: "dahszhi" price: "$112.45" currency: USD in_stock: true reviews_count: 13 url: https://www.desertcart.us/products/68587740-dahszil-dual-laser-alarm-beam-sensor-300m-outdoor-60m-infrared store_origin: US region: United States of America --- # Auto power adjustment for efficiency 300m max detection range Rain & false alarm resistant optics Dahszil Dual Laser Alarm Beam Sensor,300m Outdoor 60m Infrared Detector **Brand:** dahszhi **Price:** $112.45 **Availability:** ✅ In Stock ## Summary > 🚨 Lock down your perimeter with laser precision — don’t let security be an afterthought! ## Quick Answers - **What is this?** Dahszil Dual Laser Alarm Beam Sensor,300m Outdoor 60m Infrared Detector by dahszhi - **How much does it cost?** $112.45 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/68587740-dahszil-dual-laser-alarm-beam-sensor-300m-outdoor-60m-infrared) ## 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 - • **Smart Power Management:** Automatic transmit power adjustment extends sensor life while reducing energy consumption. - • **Weatherproof & Reliable:** Advanced lensed optics provide immunity against rain, snow, mist, and even falling leaves or birds. - • **Precision Laser Alignment:** Built-in laser beam system ensures ultra-accurate sensor positioning for foolproof perimeter security. - • **Versatile Security Solution:** Ideal for offices, schools, hospitals, and home yards—professional-grade protection wherever you need it. - • **Dual Infrared Beam Detection:** Two simultaneous beams cover up to 60m outdoors, minimizing false alarms from environmental noise. ## Overview The Dahszil Dual Laser Alarm Beam Sensor offers a cutting-edge 300m indoor and 60m outdoor detection range using dual infrared beams. Its built-in laser alignment system guarantees precise installation, while advanced optics minimize false alarms caused by weather or wildlife. Featuring automatic power adjustment, this durable sensor optimizes energy use and extends lifespan, making it a reliable choice for professional-grade perimeter security in diverse environments. ## 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 °C - 55 °C Operation Humidity: 5% - 95% RH (relative humidity) Power Supply: DC 13.8 ~ 24V AC 11 ~ 18V P ≥ 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. ## 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 | #116,412 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #404 in Household Sensors & Alarms | | Brand | Dahszhi | | Color | Black | | Compatible Devices | Security Systems | | Customer Reviews | 3.9 3.9 out of 5 stars (135) 3.9 out of 5 stars | | Item Dimensions L X W X H | 6.7"L x 6.7"W x 6.7"H | | Manufacturer | Shenzhendahongsuanzhidianzishangwuyouxiangongsi | | Maximum Range | 300 meters | | Mfr Part Number | 136 | | Model Number | 5823824122 | | Mounting Type | Wall Mount | | Number Of Items | 2 | | Number Of Packs | 1 | | Sensor Technology | Infrared Sensor | | Size | 6.7" x 3.1" | | Upc | 604213498229 | ## Product Details - **Brand:** Dahszhi - **Color:** Black - **Compatible Devices:** Security Systems - **Power Source:** External Power Supply - **Product Dimensions:** 6.7"L x 6.7"W x 6.7"H ## Images ![Dahszil Dual Laser Alarm Beam Sensor,300m Outdoor 60m Infrared Detector - Image 1](https://m.media-amazon.com/images/I/51sU3gMtUCL.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 on Reviewed in the United States 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. ### ⭐⭐⭐⭐⭐ VERY RELIABLE - NO FALSE ALARMS *by on Reviewed in the United States November 10, 2024* I have been using these sensors for various purposes for 12 hears. They are excellent. If the alarm is tripped, it has never been a false alarm. Heavy Snow, Heavy rain, falling leaves have never tripped it but it always gets tripped if a person, auto , deer etc passes between the xmitter and receiver. ### ⭐⭐⭐⭐ They work well--- Eventually *by on Reviewed in the United States 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? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/68587740-dahszil-dual-laser-alarm-beam-sensor-300m-outdoor-60m-infrared](https://www.desertcart.us/products/68587740-dahszil-dual-laser-alarm-beam-sensor-300m-outdoor-60m-infrared) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-30*