--- product_id: 61432537 title: "FD-90A-O2" brand: "forensics detectors fd" price: "₨5344" currency: SCR in_stock: true reviews_count: 8 category: "Forensics Detectors Fd" url: https://www.desertcart.sc/products/61432537-fd-90a-o2 store_origin: SC region: Seychelles --- # 0.1% O2 resolution precision USB rechargeable battery Dust, shock & explosion proof FD-90A-O2 **Brand:** forensics detectors fd **Price:** ₨5344 **Availability:** βœ… In Stock ## Summary > πŸ›‘οΈ Stay ahead of danger with precision you can trust! ## Quick Answers - **What is this?** FD-90A-O2 by forensics detectors fd - **How much does it cost?** ₨5344 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/61432537-fd-90a-o2) ## 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€’ **Pinpoint Oxygen Accuracy:** Professional-grade 0-30% O2 detection with ultra-fine 0.1% resolution calibrated by USA NIST standards. - β€’ **Eco-Friendly USB Recharge:** Sustainable, hassle-free USB charging keeps you powered without the waste of disposable batteries. - β€’ **Rugged Field-Ready Design:** Built tough with dust, shock, water, and explosion-proof casing plus a convenient belt clip for on-the-go reliability. - β€’ **Triple-Alert Safety System:** Simultaneous sound, light, and vibration alarms ensure you never miss critical oxygen level changes. - β€’ **Smart Calibration & Logging:** Factory calibrated with zero/span options and digital timestamped alarm logs for trusted, traceable performance. ## Overview The Forensics Oxygen Detector is a professional-grade, USA NIST calibrated device offering ultra-precise oxygen measurement from 0-30% with 0.1% resolution. Engineered for durability, it features dust, shock, water, and explosion-proof housing, combined with triple-mode alarms (sound, light, vibration) for immediate alerts. USB rechargeable and equipped with digital logging and calibration options, it’s the trusted choice for safety-conscious professionals demanding reliable, field-ready oxygen monitoring. ## 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: The meter is a good value for cost. - This O2 meter came certified /calibrated. I performed a bump test and confirmed the accuracy of the manufacturer's calibration. The meter is easy to operate and recharge the battery. It is surprisingly durable in the field for such an inexpensive meter. We have been using it for 2 years and have had no issues. Review: Accurate Oxygen readout - This item is accurate and easy to use. Gives Oxygen level to a tenth of a percent. ## Features - πŸ”¬ ACCURATE: Professional and Accurate OXYGEN (O2) gas detector, 0-30.0% with 0.1% resolution. USA NIST Calibration. - 🌷 DETECT: Electrochemical cell sensor with accuracy: ≀±5% F.S. and response time: T<30s. Zero and span calibration options. Comes factory calibrated. - πŸŽ† ALARMS: Adjustable audio, visual, and vibration alarms alert when preset levels are reached. Alarm digital time stamp and logging. - πŸ’ͺ STRONG: Shock proof, water proof, dust proof and explosion proof with belt clip. - πŸ•΅οΈ TRUST: ** 1 YEAR limited warranty ** Arrives with calibration and QA certificate ** 100% product test and verification in the USA ** 100% quality guaranteed ** ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07BMNRTDL | | Alarm | Audible, Vibration, Visual | | Battery Average Life | 12 Hours | | Best Sellers Rank | #188,023 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #129 in Gas Detectors & Alarms | | Brand | FORENSICS DETECTORS FD | | Color | Yellow | | Customer Reviews | 4.3 out of 5 stars 85 Reviews | | Enclosure Material | ABS | | Item Dimensions D x W x H | 1.7"D x 2.3"W x 4.3"H | | Item Weight | 8 ounces | | Manufacturer | FORENSICS | | Mfr Part Number | FD-90A-O2 | | Model Number | FD-90A-O2 | | Operating Humidity | 95 percent | | Power Source | Battery Powered | | Product Dimensions | 1.7"D x 2.3"W x 4.3"H | | Product Style | modern | | Sensor Type | Electrochemical | | Style | modern | | Unit Count | 1.0 Count | ## Product Details - **Alarm:** Audible, Vibration, Visual - **Brand:** FORENSICS DETECTORS FD - **Color:** Yellow - **Item Weight:** 8 ounces - **Material:** ABS - **Operating Humidity:** 95 percent - **Power Source:** Battery Powered - **Product Dimensions:** 1.7"D x 2.3"W x 4.3"H - **Sensor Type:** Electrochemical - **Style:** modern ## Images ![FD-90A-O2 - Image 1](https://m.media-amazon.com/images/I/71jcV3AHBuL.jpg) ![FD-90A-O2 - Image 2](https://m.media-amazon.com/images/I/81L0VlXfLPL.jpg) ![FD-90A-O2 - Image 3](https://m.media-amazon.com/images/I/81upZ9Px9aL.jpg) ![FD-90A-O2 - Image 4](https://m.media-amazon.com/images/I/81n3zpfe3aL.jpg) ![FD-90A-O2 - Image 5](https://m.media-amazon.com/images/I/71jOT2IJ2LL.jpg) ## Questions & Answers **Q: Can this be used to analyze O2 in a scuba cylinder?** A: The detector reads up to 30% O2. If your cylinder contains compressed air, then YES. If it contains enriched O2 higher then 30%, then NO. **Q: Does this measure carbon dioxide levels as ppm? I've read that 250-400ppm is outdoor air so how does this measure that?** A: It measures oxygen, not carbon dioxide. **Q: Does this come with a charger or only a usb cable?** A: Only USB cable. If you want a charger also, we would be happy to send you one for free. (Most customers have USB chargers lying around). Please email us forensicsdetectors@gmail.com after your purchase. **Q: What will this meter display when Oxygen concentration rises above 30%? And can it be user calibrated?** A: If above 30% it just reads 30%. Yes, the user can calibrate it. It is very easy we have Youtube videos on how to do this. Thank you. ## Customer Reviews ### ⭐⭐⭐⭐⭐ The meter is a good value for cost. *by J***Y on May 8, 2025* This O2 meter came certified /calibrated. I performed a bump test and confirmed the accuracy of the manufacturer's calibration. The meter is easy to operate and recharge the battery. It is surprisingly durable in the field for such an inexpensive meter. We have been using it for 2 years and have had no issues. ### ⭐⭐⭐⭐⭐ Accurate Oxygen readout *by T***. on November 19, 2024* This item is accurate and easy to use. Gives Oxygen level to a tenth of a percent. ### ⭐⭐⭐⭐⭐ Better than I expected. *by L***E on August 1, 2022* Works like a champ. Build quality is actually above what I was expecting... feels quite well built and sturdy. ## Frequently Bought Together - Oxygen Detector by Forensics | USA NIST Calibration & Certificate | Dust & Explosion Proof | USB Recharge | Sound, Light and Vibration Alarms | 0-30% O2 | - 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? - 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.sc/products/61432537-fd-90a-o2](https://www.desertcart.sc/products/61432537-fd-90a-o2) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-05-21*