--- product_id: 60835063 title: "FD-4S" brand: "forensics detectors fd" price: "₹ 47510" currency: INR in_stock: true reviews_count: 12 category: "Forensics Detectors Fd" url: https://www.desertcart.in/products/60835063-fd-4s store_origin: IN region: India --- # Vivid color display USA NIST calibrated data logging 4-gas electrochemical sensors FD-4S **Brand:** forensics detectors fd **Price:** ₹ 47510 **Availability:** ✅ In Stock ## Summary > 🚨 Stay Ahead of Danger with Precision & Style! ## Quick Answers - **What is this?** FD-4S by forensics detectors fd - **How much does it cost?** ₹ 47510 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/60835063-fd-4s) ## 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 - • **Rugged & Ready for Action:** Built with high-strength ABS and anti-slip rubber grip to withstand the toughest job sites. - • **Crystal-Clear Color Display:** Instantly visualize gas levels with a vibrant, easy-to-read screen and dynamic graph functions. - • **Seamless Portability & Power:** Lightweight design with 12-hour battery life and USB recharge for uninterrupted, on-the-go monitoring. - • **Quad-Gas Detection Powerhouse:** Simultaneously monitor Oxygen, CO, H2S, and Combustible gases for comprehensive safety coverage. - • **Certified Accuracy You Can Trust:** Factory calibrated with USA NIST standards ensuring pinpoint precision every time. ## Overview The Multigas 4 Gas Monitor by FORENSICS DETECTORS is a compact, professional-grade device engineered for real-time detection of Oxygen, Carbon Monoxide, Hydrogen Sulfide, and Combustible gases. Featuring a vivid color display, USA NIST factory calibration, and robust construction, it delivers reliable, accurate readings with up to 12 hours of battery life. Ideal for safety-conscious professionals in oil, gas, construction, and industrial sectors, it combines cutting-edge technology with portability and certified trust. ## Description Forensics Detectors The world's best gas detectors. Expert support, affordable, and speedy shipping. FORENSICS DETECTORS offers sensitive, accurate, and affordable gas detectors, meters, and analyzers. We offer every major type of gas meter and detector to oil and gas, R&D, transport, food, construction, electronics, and occupational safety using only USA NIST calibration gas. The company operates from the scenic Palos Verdes Peninsula in Los Angeles, California, USA. Innovative Gas Detection USA operations based in Los Angeles, California, USA. Innovative Gas Detection USA operations based in Los Angeles, California, USA. USA NIST Calibration Calibration in Los Angeles, CA, USA for maximum reliability and accuracy. USA NIST Calibration Calibration in Los Angeles, CA, USA for maximum reliability and accuracy. Sensitive Gas Detectors USA NIST Calibration for reliable, accurate, and sensitive gas detection. Sensitive Gas Detectors USA NIST Calibration for reliable, accurate, and sensitive gas detection. Gas Detector Specialists We are gas detector specialists and provide Ph.D.-level gas detection support. Gas Detector Specialists We are gas detector specialists and provide Ph.D.-level gas detection support. Review: Works as advertised - Does the job. Review: It works perfectly - I am vetting inspector working on board ocean going Petroleum and Gas ships. As a part of my job and to be a good role model to the ships crew, I carry this personal gas detector with me. I bought it 3 months ago. It works perfectly. Battery - I use it for about 3 hours every ship and it lasts about 3 ships ebfore recharging. I also like that it has a usb recharge and no need to carry a separate bulky charger. It clips on the boiler suit pocket. It also looks very stylish. It does the job from the safety point of view. It arrived with a calibration document valid for 12 months. I highly recommend it. ## Features - 🌈 COLOR DISPLAY: Color screen and Graph functions. - 🔬 DETECT: Oxygen (O2), Carbon Monoxide (CO), Hydrogen Sulfide (H2S) and Combustibles (LEL). - 📲 DATA LOGGING: Detectors 4 gas with USA NIST factory calibration. - 💪 STRONG: Robust design made of high-strength ABS and Anti-slip grip rubber. - 🕵️ TRUST: ** 1 year limited warranty ** Arrives with calibration and QA certificate ** ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07B4LKGQM | | Alarm | Visual | | Battery Average Life | 12 Hours | | Best Sellers Rank | #229,431 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #136 in Gas Detectors & Alarms | | Brand | FORENSICS DETECTORS FD | | Color | Black | | Customer Reviews | 4.4 out of 5 stars 99 Reviews | | Item Dimensions D x W x H | 1.18"D x 2.64"W x 5.12"H | | Item Weight | 3.2 ounces | | Manufacturer | FORENSICS | | Mfr Part Number | YR-G6Y8-HA75 | | Model Number | FD-4S | | Operating Humidity | 95 percent | | Power Source | Battery Powered | | Product Dimensions | 1.18"D x 2.64"W x 5.12"H | | Product Style | Gas Detector | | Sensor Type | Electrochemical | | Style | Gas Detector | | Unit Count | 1.0 Count | ## Product Details - **Alarm:** Visual - **Battery Life:** 12 Hours - **Brand:** FORENSICS DETECTORS FD - **Color:** Black - **Item Weight:** 3.2 ounces - **Operating Humidity:** 95 percent - **Power Source:** Battery Powered - **Product Dimensions:** 1.18"D x 2.64"W x 5.12"H - **Sensor Type:** Electrochemical - **Style:** Gas Detector ## Images ![FD-4S - Image 1](https://m.media-amazon.com/images/I/71xfuChWhlL.jpg) ## Questions & Answers **Q: when measuring oxygen readings, can you set a range of time, duration or frequency for data logging?** A: Great question, see video for a detailed answer. **Q: will this unit pick up propane and natural gas leaks during a home inspection?** A: This is not made to pick up leaks during a home inspection. What would be more appropriate is a gas leak detector with GOOSE NECK. The gas leak detector is more sensitive (in ppm) range where this detector is a LEL % detector, for exposure safety purposes. **Q: Does this 4 gas detector come with a clip to attach to my FR shirt?** A: The detector has installed on its back a belt clip. Thanks **Q: Is there a calibration kit available?** A: The detector comes with a calibration cap to be plugged into calibration gas. For calibration, a standard mixed gas NIST gas bottle with a regulator will work very well. Our recommended product is ASIN: B015O16X32. Multi Calibration Gas: 25 PPM Hydrogen Sulfide, 100 PPM Carbon Monoxide, 2.5% (50% LEL) Methane, 19% Oxygen, Balance Nitrogen ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works as advertised *by F***H on January 31, 2026* Does the job. ### ⭐⭐⭐⭐⭐ It works perfectly *by M***N on September 6, 2019* I am vetting inspector working on board ocean going Petroleum and Gas ships. As a part of my job and to be a good role model to the ships crew, I carry this personal gas detector with me. I bought it 3 months ago. It works perfectly. Battery - I use it for about 3 hours every ship and it lasts about 3 ships ebfore recharging. I also like that it has a usb recharge and no need to carry a separate bulky charger. It clips on the boiler suit pocket. It also looks very stylish. It does the job from the safety point of view. It arrived with a calibration document valid for 12 months. I highly recommend it. ### ⭐⭐⭐⭐⭐ Very nice gas monitor *by R***O on January 27, 2024* Very nice product, can definitely compete with the more known brands. It keeps up very well. Battery life is satisfactory it keep stamina a full day. We use it in a HVAC setup, to enter steam/hot water boilers. cleaning, repairs (refractory, tube repairs) and inspection of the boilers. So you got an idea what conditions we expose it to. ## Frequently Bought Together - Multigas 4 Gas Monitor | with USA NIST Calibration Certificate | CO, H2S, CO, EX LEL | - Gas Sampling Pump by Forensics | Stainless Steel Probe | Made for Gas Detectors & Meters | Flow Rate: 0.5LPM, 500cc/min | Strong ABS | USB Recharge | --- ## 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.in/products/60835063-fd-4s](https://www.desertcart.in/products/60835063-fd-4s) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-07-01*