Easy Sensor Replacement: Step-by-Step Guide for FD-90-A

This video shows you how to replace the gas sensors in the FD-4A multi-gas detector.
The FD-4A is a multi-gas detector with sensors designed to measure oxygen (O2), Carbon Monoxide (CO), Hydrogen Sulfide (H2S) and Combustibles (LEL). These sensors are replaceable and this video will walk you through the steps to replace these sensors yourself.
PURCHASE:
FD-4A Gas Detector:
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Carbon Monoxide Sensors:
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Oxygen Sensors:
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Hydrogen Sulfide Sensors:
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What is the FD-4A?
A basic multi-gas detector by FORENSICS with basic and simple functions, yet incorporates high quality sensors. Simple large LCD and with backlight. Robust for industrial use for utility workers, refinery workers, firefighters, maintenance engineers, those who spend time in sewers and waterworks, underground storage tanks, oil rigs, in tanks and silos in the maritime industry, and many others who need personal protective equipment to know that the atmosphere is healthy. Product comes with the Multi-Gas Detector, English Manual, Computer USB recharge cable, Charger, Calibration Cover, metal belt clip and nut to secure cap. 100% customer satisfaction. Comes FACTORY CALIBRATED.
How to calibrate the FD-4A after replacement:
• Calibration Multigas D...
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✅ Forensics Detectors was established in 2017 to offer the world's best and most affordable gas detectors, meters and analyzers. Forensics Detectors has grown to include virtually every major type of gas meter and detector for industries such as consumer, oil and gas, R&D, transport, food, construction, electronics, occupational safety and general industry. Forensics Detectors is dedicated to providing only the finest professional-grade gas measurement, detection and monitoring equipment with PhD level technical support and expertise.
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