Can this be used to analyze O2 in a scuba cylinder?

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.

Does this measure carbon dioxide levels as ppm? I've read that 250-400ppm is outdoor air so how does this measure that?

It measures oxygen, not carbon dioxide.

Does this come with a charger or only a usb cable?

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.

What will this meter display when Oxygen concentration rises above 30%? And can it be user calibrated?

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.

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Oxygen Detector by Forensics | USA NIST Calibration & Certificate | Dust & Explosion Proof | USB Recharge | Sound, Light and Vibration Alarms | 0-30% O2 |

Oxygen Detector by Forensics | USA NIST Calibration & Certificate | Dust & Explosion Proof | USB Recharge | Sound, Light and Vibration Alarms | 0-30% O2 |

Product ID: 61432537

Details

Alarm
Audible Visual
Brand
FORENSICS FD
Color
Yellow
Item Weight
8 ounces
Material
ABS
Operating Humidity
95 percent

🎯0.1% O2 resolution precision

🔋USB rechargeable, 12h battery life

🛡️Dust, shock & explosion proof

₨5491

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Description

🛡️ Stay Ahead of Danger with Precision Oxygen Detection!

PINPOINT OXYGEN ACCURACY - Professional-grade 0-30% O2 detection with ultra-fine 0.1% resolution calibrated to USA NIST standards.
TRIPLE ALERT SAFETY SYSTEM - Simultaneous sound, light, and vibration alarms ensure you never miss critical oxygen level changes.
SMART CALIBRATION LOGGING - Factory calibrated with zero/span options plus digital timestamped alarm logs for precise monitoring and compliance.
BUILT TO BRAVE ANY ENVIRONMENT - Rugged dustproof, shockproof, waterproof, and explosion-proof design with convenient belt clip for on-the-go reliability.
LONG LASTING POWER PORTABILITY - USB rechargeable battery delivers up to 12 hours of continuous use—stay powered through every shift.

The Forensics Oxygen Detector FD-90A-O2 is a professional electrochemical sensor device calibrated to USA NIST standards, offering precise oxygen level monitoring from 0 to 30% with 0.1% resolution. Designed for demanding environments, it features dust, shock, water, and explosion-proof housing, combined with multi-mode alarms (sound, light, vibration) and USB rechargeable battery lasting up to 12 hours. Ideal for safety-conscious professionals requiring reliable, real-time oxygen detection with digital logging and factory calibration certification.

Specifications

ASIN	B07BMNRTDL
Alarm	Audible, Vibration, Visual
Battery Average Life	12 hours
Best Sellers Rank	#203,777 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #119 in Gas Detectors & Alarms
Brand	FORENSICS DETECTORS FD
Color	Yellow
Customer Reviews	4.2 4.2 out of 5 stars (87)
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 Style	modern
Sensor Type	Electrochemical
Unit Count	1 Count

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₨5491

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Seychelles.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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