The Tyco 4500 Gas Detection Transmitter (Model 4581) is a high-accuracy fixed gas monitoring device designed for continuous detection of hydrogen sulfide (H₂S) in industrial environments. With a detection range of 0–10 ppm, this transmitter offers sensitive, real-time measurement to protect personnel, monitor process areas, and maintain regulatory compliance.

Engineered for harsh operating conditions, the 4500 Series transmitter features robust signal conditioning, stable sensor output, and compatibility with most industrial gas control panels. Its low-power design ensures dependable long-term operation in hazardous safety zones.

This transmitter is commonly deployed in oil & gas facilities, chemical plants, wastewater treatment, marine engine rooms, and confined-space monitoring applications.

✅ Technical Specifications

• Manufacturer: Tyco Gas Detection

• Series / Type: 4500 Gas Transmitter

• Model: 4581

• Gas Type: Hydrogen Sulfide (H₂S)

• Detection Range: 0 – 10 ppm

• Supply Voltage: 30 V

• Current Consumption: 150 mA

• Output: Transmitter-compatible analog signal (varies by system card)

• Mounting: Wall or panel mount

• Alarm Interface: Designed for integration with Tyco detection controllers

• Sensor Type: Electrochemical (typical for H₂S)

🧪 Applications

• Oil & gas production & refining

• Petrochemical safety zones

• FPSO / offshore platforms

• Marine engine rooms

• Pump stations and confined spaces

• Wastewater treatment plants

• Analyzer shelters

• Industrial hygiene monitoring

💡 Key Benefits

• Reliable toxic gas protection

• Continuous, real-time monitoring

• High sensitivity at low ppm levels

• Compact transmitter footprint

• Long service life, stable signal output

• Supports early leak alarm and shutdown automation