--- product_id: 152887990 title: "FD-4A" brand: "forensics detectors fd" price: "59798F" currency: XPF in_stock: true reviews_count: 5 category: "Forensics Detectors Fd" url: https://frenchpolynesia.desertcart.com/products/152887990-fd-4a store_origin: PF region: French Polynesia --- # Multi-mode alarms: sound, light & vibration Response time under 30 seconds 4 high-precision electrochemical sensors FD-4A **Brand:** forensics detectors fd **Price:** 59798F **Availability:** βœ… In Stock ## Summary > 🚨 Stay Ahead of Danger with the Ultimate 4-Gas Guardian! ## Quick Answers - **What is this?** FD-4A by forensics detectors fd - **How much does it cost?** 59798F with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [frenchpolynesia.desertcart.com](https://frenchpolynesia.desertcart.com/products/152887990-fd-4a) ## Best For - forensics detectors fd enthusiasts ## Why This Product - Trusted forensics detectors fd brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Effortless Operation:** Turn ON and GO with a large backlit display designed for fast, clear readings in any environment. - β€’ **Precision You Can Trust:** Detect O2, CO, H2S & LEL gases with ≀±5% accuracy for critical safety decisions. - β€’ **Instant Alerts, Zero Delay:** Adjustable audio, visual, and vibration alarms ensure you never miss a hazard. - β€’ **Built to Brave the Elements:** Rugged ABS body with anti-slip grip, waterproof, dust-proof & explosion-proof certified. - β€’ **Certified & Calibrated in Europe:** Comes with UK NPL calibration certificate and 1-year warranty for guaranteed reliability. ## Overview The UK Certificate 4 Gas Detector by FORENSICS is a professional-grade multi-gas monitor featuring high-quality electrochemical sensors for Oxygen, Carbon Monoxide, Hydrogen Sulfide, and Combustibles. It delivers rapid detection with ≀±5% accuracy and under 30 seconds response time. Equipped with customizable sound, light, and vibration alarms, a large backlit display, and a rugged, explosion-proof design, it’s calibrated in Europe and backed by a 1-year warrantyβ€”perfect for industrial safety in utilities, refineries, and emergency services. ## Description Free delivery and returns on all eligible orders. Shop UK Certificate 4 Gas Detector by FORENSICS | O2, CO, H2S, LEL Multi Gas Detector | Sound, Light & Vibration Alarms | Large Display & Backlight | UK NPL Calibration Certificate. Review: ottimo - Ottimo Review: Great Value - This was purchased to replace a broken, very expensive, industrial model. It works just as well and is very accurate, for a fraction of the price....as a matter of fact, this was dropped in water and stopped working. After drying it out, it worked like a charm at the same great level of accuracy. No complaints! ## Features - βš›οΈ SENSOR: High quality electrochemical sensors. Oxygen (O2), Carbon Monoxide (CO), Hydrogen Sulfide (H2S) and Combustibles (LEL). Turn ON and GO. - πŸŒ‡ DETECT: Detection error better than ≀±5% F.S. and response time: T<30s. Zero and span calibration options. - πŸŽ† ALARMS: Adjustable audio, visual, and vibration alarms alert when preset levels are reached. Alarm digital time stamp. - πŸ’ͺ STRONG: Robust design made of high strength ABS and Anti-slip grip rubber. Waterproof, dust-proof and explosion-proof exceeding Exib IIB T3 Gb. - πŸ•΅οΈ TRUST: ** 1 Year warranty ** Test and Calibrated in EUROPE ** 100% quality guaranteed ** ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07J1WQST5 | | Alarm | Vibration | | Battery Average Life | 6 hours | | Best Sellers Rank | 186,324 in DIY & Tools ( See Top 100 in DIY & Tools ) 67 in Gas Detectors | | Brand | FORENSICS DETECTORS FD | | Colour | Yellow | | Country of Origin | China | | Customer Reviews | 4.5 out of 5 stars 107 Reviews | | Item Dimensions D x W x H | 3D x 6.7W x 13H centimetres | | Item Weight | 272 g | | Item weight | 272 g | | Manufacturer | FORENSICS DETECTORS | | Model Number | FD-4A | | Operating Humidity | 95 percent | | Part Number | AQ-ODP5-281U | | Power source | Battery Powered | | Product Style | Basic | | Product dimensions | 3D x 6.7W x 13H centimetres | | Sensor Type | Electrochemical | | Style | Basic | | Unit Count | 1.0 count | ## Product Details - **Alarm:** Vibration - **Brand:** FORENSICS DETECTORS FD - **Colour:** Yellow - **Item weight:** 0.6 Pounds - **Operating humidity:** 95 percent - **Power source:** Battery Powered - **Product dimensions:** 3D x 6.7W x 13H centimetres - **Sensor type:** Electrochemical - **Style:** Basic - **Unit count:** 1.0 count ## Images ![FD-4A - Image 1](https://m.media-amazon.com/images/I/71yImU2wyVL.jpg) ## Questions & Answers **Q: Will this device detect ethanol?** A: It will respond to ethanol vapor, but will not be very representative of the actual %LEL since this detector, like all, are calibrated standard to methane. If you need %LEL for ethanol we will need to special order for accurate ethanol %LEL. Thank you. **Q: Does this unit have a belt clip or some other means with which to attach it to an individual?** A: Yes come with an aligator belt clip. **Q: Do you have any device that we can analyze the CO gas from vehicle** A: No unfortunately we do not. Existing products from other companies seem to be OK options. **Q: Conflicting info for battery life. "working battery time > 24 hours" or "average battery life β€Ž6 hours". which is it? thanks!** A: Thanks for bringing it to our attention. Battery life is well over 24 hours! We will fix the Amazon-generated typo. Have a great day. ## Customer Reviews ### ⭐⭐⭐⭐⭐ ottimo *by E***O on 27 February 2020* Ottimo ### ⭐⭐⭐⭐⭐ Great Value *by S***Z on 7 February 2024* This was purchased to replace a broken, very expensive, industrial model. It works just as well and is very accurate, for a fraction of the price....as a matter of fact, this was dropped in water and stopped working. After drying it out, it worked like a charm at the same great level of accuracy. No complaints! ### ⭐⭐⭐⭐⭐ Good Monitor *by C***L on 31 December 2025* Works as intended and included the certificate! ## Frequently Bought Together - USA NIST Calibrated 4 Gas Monitor by Forensics | O2, CO, H2S, LEL | USB Recharge | - FORENSICS DETECTORS FD 4 Gas Monitor + Pump | USA NIST Calibration Certificate | USB Recharge | Sound, Light & Vibration Alarms | - Allegro Industries-9533-25 32" X 13 12" X 14 12" 831 cfm 13 hp 115 VAC 3 A Motor Polyethylene Com-Pax-Ial Blower with Canister and 8" X 25' Duct,Orange --- ## 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://frenchpolynesia.desertcart.com/products/152887990-fd-4a](https://frenchpolynesia.desertcart.com/products/152887990-fd-4a) --- *Product available on Desertcart French Polynesia* *Store origin: PF* *Last updated: 2026-11-09*