Can this unit be left on continuously and once it detect amonia an alarm will sound?

It can, but really would rely on a battery powered unit for any kind of life safety application. There are hardwired units with alarms that would probably be a wiser choice. That’s my 2 cents

Can i use for aquarium?

No, only for gas or air environments.

Can you use in fish tank, pond

No, its for measuring ammonia in the air, like you might find in a poultry farm. I think there are test strips or kits available for measuring ammonia en water.

Is the pump and probe sold separately required for measurement?

No, the meter will respond to ammonia en the air surrounding it. However, if you want to check the concentration in a confined space before entering, the pump and probe would be necessary.

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FD-90A-NH3

Product ID: 70187812

Details

Alarm
Vibration
Brand
FORENSICS FD
Item Weight
130 g
Manufacturer
FORENSICS
Operating Humidity
95 percent
Power Source
Battery

💧Water & dust resistant ruggedness

🔋USB rechargeable convenience

⚛️0.1 ppm electrochemical precision

E£ 57794

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Description

⚡ Stay ahead of danger with precision and durability in your pocket!

EFFORTLESS PORTABILITY - Lightweight 130g design with belt clip for seamless on-the-go monitoring.
PRECISION YOU CAN TRUST - Factory calibrated in the USA with ±5% accuracy for pinpoint ammonia detection.
BUILT TO BRAVE THE ELEMENTS - Shockproof, water, dust, and explosion resistant—ready for any environment.
CERTIFIED QUALITY ASSURANCE - Includes USA NIST calibration certificate and 1-year warranty for peace of mind.
INSTANT ALERTS ZERO DOWNTIME - Customizable audio, visual, and vibration alarms keep you ahead of hazardous levels.

The Forensics Ammonia Detector offers ultra-precise NH3 monitoring from 0 to 100 ppm with 0.1 ppm resolution, backed by USA NIST calibration. Its electrochemical sensor ensures ±5% accuracy, while rugged water, dust, and explosion resistance make it ideal for demanding environments. Featuring customizable multi-mode alarms and USB recharge, this lightweight, belt-clip-ready device guarantees reliable, on-the-go safety with certified quality assurance.

Specifications

ASIN	B07BD4M5KZ
Alarm	Vibration
Best Sellers Rank	#933,124 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #398 in Gas Detectors & Alarms
Brand	FORENSICS DETECTORS FD
Customer Reviews	2.6 2.6 out of 5 stars (4)
Item Weight	130 g
Manufacturer	FORENSICS
Mfr Part Number	FD-90A-NH3
Model Number	FD-90A-NH3
Operating Humidity	95 percent
Power Source	Battery Powered
Product Style	modern
Sensor Type	Electrochemical
Unit Count	1 Count

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E£ 57794

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered 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 EGYPT.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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