Can a tube be put on the end of the probe to be able to sample from areas too far down for the probe alone to reach?

Yes it can. The end of the probe has a barb so a 4-6mm ID tubing will work. Thank you

What is the indication if the O2 level is above 30%?

If above 30% indication is 30.0% and does not change unit after this.

can this device be used to warn of O2 depletion in a room where a liquid Nitrogen duer is stored?

Functionally speaking yes it could do that. However, for continuous room monitoring to alarm for oxygen depletion we recommend permanently fixed wall mount unit, like this guy here: https://www.amazon.com/dp/B0843JLSXS?ref=myi_title_dp

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

FORENSICS DETECTORS FD - OXYGEN O2 Detector Analyzer + PUMP with Probe by FORENSICS - USA NIST Calibrated - USB Recharge - Sound, Light and Vibration Alarms - 0-30% O2 -

FORENSICS DETECTORS FD - OXYGEN O2 Detector Analyzer + PUMP with Probe by FORENSICS - USA NIST Calibrated - USB Recharge - Sound, Light and Vibration Alarms - 0-30% O2 -

Product ID: 86330420

Details

Alarm
Audible Visual
Brand
FORENSICS FD
Color
YELLOW
Item Weight
130 Grams
Material
ABS
Operating Humidity
95 percent

🔋USB rechargeable battery

🚄Response <30s

⚛️0.1% O2 resolution

HK$2927

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered 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 Hong Kong.

Secure transaction

Description

🕵️‍♂️ Detect with precision, act with confidence.

PLUG PUMP DETECT - Integrated 0.5LPM pump with probe for fast, continuous sampling—turn it on and start measuring immediately.
PRECISION YOU CAN TRUST - NIST-calibrated electrochemical sensor ensures ±5% accuracy for reliable oxygen detection.
RUGGED READY FOR ACTION - Shockproof, waterproof, dustproof, and explosion-proof design with convenient belt clip for on-the-go professionals.
CERTIFIED QUALITY ASSURANCE - Comes with USA calibration certificate, 1-year warranty, and 100% product verification for peace of mind.
INSTANT ALERTS ZERO DOWNTIME - Multi-mode alarms (sound, light, vibration) with digital timestamp keep you ahead of hazardous levels.

The FORENSICS DETECTORS FD Oxygen O2 Analyzer is a professional-grade, NIST-calibrated gas detector featuring a fast-response electrochemical sensor with 0.1% resolution across 0-30% O2 range. Equipped with a built-in pump, USB rechargeable battery, and multi-mode alarms (sound, light, vibration), it offers rugged durability (shock, water, dust, explosion proof) and certified quality assurance, making it the go-to tool for safety-conscious professionals.

Specifications

ASIN	B07GM4NP3T
Alarm	Audible, Vibration, Visual
Best Sellers Rank	#503,659 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #241 in Gas Detectors & Alarms
Brand	FORENSICS DETECTORS FD
Color	YELLOW
Customer Reviews	4.3 4.3 out of 5 stars (19)
Enclosure Material	ABS
Item Weight	130 Grams
Manufacturer	FORENSICS
Mfr Part Number	FD-90A-O2-PUMP
Model Number	FD-90A-O2-PUMP
Operating Humidity	95 percent
Power Source	Battery Powered
Product Style	Modern
Sensor Type	Electrochemical
Unit Count	1.0 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

HK$2927

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered 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 Hong Kong.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

View all Trustpilot reviews