Duo Tracer Portable Dual-Gas Detector, 15 Gas Combinations

SENKO DUO TRACER – Portable Dual-Gas Detector

The Senko DUO TRACER is a compact and reliable portable gas detector designed for the simultaneous monitoring of two hazardous gases in industrial environments. It is designed to ensure the safety of your employees working in environments at risk of toxic and explosive gases, offering an optimal balance between functionality, price, and convenience.

Advantages:

• Price: The combined dual-sensor model is more affordable than multi-gas detectors
• Supports up to 15 different gas combinations;
• Simplified interface for easy and intuitive use;
• Fast sensor response;
• Compact;
• 360° alarm, including:
  • a powerful 90 dB siren;
  • strong vibration;
  • bright red LED indicator (360° visibility);
• Replaceable sensors and battery;
• Long service life.

Measurement ranges

(depending on configuration)

• explosive gases – 0–100% LEL, resolution 1% LEL;
• oxygen (O₂) – 0–30 %Vol, resolution 0.1 % Vol;
• carbon monoxide (CO) – 0–500 ppm, resolution 1 ppm;
• hydrogen sulfide (H₂S) – 0–100 ppm, resolution 1 ppm.
• carbon dioxide (CO₂) – 0–5% Vol, resolution 0.01% Vol.
• sulfur dioxide (SO₂) – 0–20 ppm, resolution 0.01 ppm.
• hydrogen (H₂) – 0–1,000 ppm, resolution 1 ppm.
• ammonia (NH3) – 0–100 ppm, resolution 1 ppm.
• nitrogen dioxide (NO2) – 0–20 ppm, resolution 0.01 ppm.
• ozone (O3) – 0–5 ppm, resolution 0.1 ppm.

The display shows the current concentration and the level of the activated alarm. The Senko DUO TRACER can be configured via the optional IR module, which allows you to change the alarm levels and download data from the device’s memory.

Key Features

• Extremely long battery life—up to 200 days on a single charge
• Memory: the last 30 alarm events + data for the last 2 months
• Protection rating: IP67
• Operating temperature: -20°C to +50°C

Technology and Operation

The Senko DUO TRACER uses a combination of:

• electrochemical sensors (EC) – for toxic gases
• infrared (NDIR) sensor – for flammable gases

This ensures:

• longer sensor life (up to ~5 years)
• more stable measurements
• Reliable operation in various industrial conditions

The diffusion method allows for natural sampling, without the need for a pump.

Reliable detection and fast response

The detector is equipped with highly sensitive sensors with a fast response time. A two-stage alarm is activated when hazardous concentrations are reached. Example factory settings:

• Explosive gases (methane) – 10 / 30% LEL;
• Oxygen – 19 / 23 %Vol;
• Carbon monoxide – 30 / 60 ppm;
• Hydrogen sulfide – 10 / 20 ppm.

The available gases and alarm levels depend on the selected configuration.

Small and easy to carry

The Senko DUO TRACER is compact—about the size of a cigarette pack. It weighs only 200 g, making it lighter than most other similar detectors on the market. There is a clip on the back for attaching it to clothing or a bag.

Event logger for analysis and reporting

The Senko DUO TRACER gas detector stores records of:

• the last 30 alarm events
• peak concentrations
• measurement data for up to 2 months
• Bump Test Logs

Why Choose DUO TRACER?

The perfect balance between:

• price (more affordable than 4-gas detectors)
• functionality (more than single-gas detectors)
• convenience (lightweight and compact)

The ideal choice for daily personnel protection without unnecessary complexity.