--- product_id: 183348642 title: "System Sensor P2RL Horn Strobe" brand: "system sensor" price: "NT$3773" currency: TWD in_stock: true reviews_count: 2 category: "System Sensor" url: https://www.desertcart.tw/products/183348642-system-sensor-p2rl-horn-strobe store_origin: TW region: Taiwan --- # 7 field-selectable candela levels 88+ dBA horn with tone & volume control Plug-in design, easy install System Sensor P2RL Horn Strobe **Brand:** system sensor **Price:** NT$3773 **Availability:** ✅ In Stock ## Summary > 🚨 Elevate safety with style and precision — never miss a signal! ## Quick Answers - **What is this?** System Sensor P2RL Horn Strobe by system sensor - **How much does it cost?** NT$3773 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/183348642-system-sensor-p2rl-horn-strobe) ## Best For - system sensor enthusiasts ## Why This Product - Trusted system sensor brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Legacy Friendly:** Works with SpectrAlert systems and MDL3 sync modules - • **Tailored Audio Warning:** Rotary switch offers horn tone and dual volume options - • **Power Smart & Versatile:** Auto-selects 12V or 24V operation for seamless compatibility - • **Customizable Visual Alerts:** Choose from 15 to 185 candela to fit any environment - • **Effortless Plug-In Installation:** Minimal back box intrusion for fast, foolproof setup ## Overview The System Sensor P2RL Horn Strobe is a professional-grade, plug-in wall-mounted fire alarm device featuring tamper-resistant construction, automatic 12/24V operation, and seven field-selectable candela settings. Its 88+ dBA horn includes tone and volume customization, ensuring clear alerts in any commercial or industrial setting. Designed for quick installation with minimal back box intrusion, it’s compatible with legacy SpectrAlert systems and built to meet rigorous safety standards. ## Description System Sensor P2RL 2-Wire Wall Horn Strobe, Red, Marked FIRE; Plug-in Design with Minimal Intrusion Into the Back Box; Tamper-resistant Construction; Horn Rated at 88+ dBA at 16 Volts The System Sensor L-Series offers the most versatile and easy-to-use line of horns, strobes, and horn strobes in the industry with lower current draws and modern aesthetics. With white and red plastic housings, standard and compact devices, and plain, FIRE, and FUEGO-printed devices, System Sensor L-Series can meet virtually any application requirement. The L-Series line of wall-mount horns, strobes, and horn strobes include a variety of features that increase their application versatility while simplifying installation. All devices feature plug-in designs with minimal intrusion into the back box, making installations fast and foolproof while virtually eliminating costly and time-consuming ground faults. Key Features - Plug-in design with minimal intrusion into the back box - Tamper-resistant construction - Automatic selection of 12- or 24-volt operation at 15 and 30 candela - Field-selectable candela settings on wall units: 15, 30, 75, 95, 110, 135, and 185 - Horn rated at 88+ dBA at 16 volts - Rotary switch for horn tone and two volume selections - Mounting plate for all standard and all compact wall units - Mounting plate shorting spring checks wiring continuity before device installation - Electrically Compatible with legacy SpectrAlert and SpectAlert Advance devices - Compatible with MDL3 sync module Specifications - Standard Operating Temperature: 32°F to 120°F - Humidity Range: 10 to 93% non-condensing - Strobe Flash Rate: 1 flash per second - Nominal Voltage: Regulated 12 DC or regulated 24 DC/FWR1,2 - Operating Voltage Range: 8 to 17.5 V (12 V nominal) or 16 to 33 V (24 V nominal) - Input Terminal Wire Gauge: 12 to 18 AWG - Wall-Mount Dimensions: 5.6"L x 4.7"W x 1.91"D Review: Works great - Cheap and works perfectly, my preferred combination. Passed inspection on a commercial application with no problems. Review: Do not recommend if you’re not an electrician or hire one - Item description doesn’t give much detail about how to wire. There are wires and other items needed for this to work ## Features - Plug-in design with minimal intrusion into the back box - Automatic selection of 12- or 24-volt operation at 15 and 30 candela - Field-selectable candela settings on wall units: 15, 30, 75, 95, 110, 135, and 185 - Rotary switch for horn tone and two volume selections - Mounting plate for all standard and all compact wall units ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07B1KDDHP | | Batteries | 1 AAA batteries required. | | Battery Description | Rechargeable lithium-ion battery included. | | Best Sellers Rank | #43,410 in Electronics ( See Top 100 in Electronics ) #159 in Security Horns & Sirens | | Control Method | Push Button | | Customer Reviews | 4.4 4.4 out of 5 stars (31) | | Date First Available | July 29, 2017 | | Item Weight | 0.01 ounces | | Item model number | SPSRL | | Manufacturer | SYSTEM SENSOR | | Mounting Type | Wall Mount | | Noise Level | 86 Decibels | | Number of Batteries | 1 AAA batteries required. | | Product Dimensions | 6.7 x 5.5 x 3.4 inches | | Size | large | | UPC | 783863047732 783863048326 | | Voltage | 24 Volts | ## Product Details - **Brand:** System Sensor - **Color:** red - **Compatible Devices:** MDL3 sync module, legacy SpectrAlert, SpectAlert Advance devices - **Power Source:** Corded Electric - **Product Dimensions:** 6.7"L x 5.5"W x 3.4"H ## Images ![System Sensor P2RL Horn Strobe - Image 1](https://m.media-amazon.com/images/I/61pPb2rB0KL.jpg) ## Questions & Answers **Q: The title says it's a p2rl, but the picture is a low frequency sounder, which has a model number of p2rl-lf. what will i receive if i order this?** A: It's a System Sensor P2RL . **Q: Product heading says p2rl, but product description says spsrl, one is a horn strobe and one is a speaker strobe. which one is this?** A: Hello, Both are Wall Horn Strobes. Thank you ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great *by N***S on November 6, 2024* Cheap and works perfectly, my preferred combination. Passed inspection on a commercial application with no problems. ### ⭐⭐ Do not recommend if you’re not an electrician or hire one *by M***Y on January 31, 2024* Item description doesn’t give much detail about how to wire. There are wires and other items needed for this to work ## Frequently Bought Together - System Sensor P2RL Horn Strobe - Fire Lite Alarms BG-12L Dual Action Pull Station w/Key Lock --- ## 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.tw/products/183348642-system-sensor-p2rl-horn-strobe](https://www.desertcart.tw/products/183348642-system-sensor-p2rl-horn-strobe) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-04-23*