Description
The SENKO DUO TRACER Portable Dual Gas Detector is a compact, diffusion-type personal gas monitor designed to simultaneously monitor two gases. With a wide selection of available sensor combinations, the DUO TRACER provides a flexible solution for applications requiring protection from oxygen, combustible, carbon dioxide, and toxic gas hazards.
Available configurations include Oxygen (O₂) paired with Methane (CH₄), Carbon Dioxide (CO₂), Carbon Monoxide (CO), Hydrogen Sulfide (H₂S), Sulfur Dioxide (SO₂), Hydrogen (H₂), Nitrogen Dioxide (NO₂), Ammonia (NH₃), or Ozone (O₃). Additional dual-toxic and specialty configurations are available, including NO₂/CO, NO₂/H₂S, NO₂/SO₂, SO₂/H₂S, SO₂/CO, NH₃/CO, CO/H₂S, and H₂S/CO₂.
The DUO TRACER uses electrochemical and NDIR sensor technology depending on the selected configuration. Methane and Carbon Dioxide configurations use NDIR technology, while applicable toxic gas and Oxygen configurations use electrochemical sensing.
The detector continuously displays gas concentrations on its LCD and warns the user of hazardous conditions through audible, visual LED, and vibration alarms. It also provides real-time monitoring, maximum and minimum concentration information, event logging, and optional wireless or SENKO IR Link configuration.
Detector Type: Portable Dual Gas Detector
Number of Gases: 2 Simultaneously
Sampling Method: Diffusion
Sensor Technology: Electrochemical and/or NDIR, depending on configuration
Ingress Protection: IP67
Alarm Types: Audible, Visual & Vibration
Battery: Replaceable 3.6V Li/SOCl₂ Primary Cell
Warranty: 2 Years
Need help selecting the correct DUO TRACER gas combination?
Call CPS Calibrations at 865-900-8844 or email info@cpscalibrations.com.
- Dual Gas Detection: Simultaneously monitors two gases using the selected sensor configuration.
- Wide Range of Configurations: Available with numerous combinations of O₂, CH₄, CO₂, CO, H₂S, SO₂, H₂, NO₂, NH₃, O₃ and other supported pairings.
- NDIR Sensor Options: Methane (CH₄) and Carbon Dioxide (CO₂) configurations utilize Non-Dispersive Infrared technology.
- Diffusion Sampling: Continuously monitors the surrounding atmosphere without an internal pump.
- Real-Time Monitoring: Displays gas concentrations continuously on the LCD.
- Triple Alarm Notification: Audible buzzer, flashing LEDs, and vibration provide clear warnings when alarm thresholds are exceeded.
- IP67 Protection: Waterproof and dustproof construction for demanding industrial environments.
- Compact Design: Lightweight personal monitor equipped with a clip for attachment to clothing, belts, or helmets.
- Single-Button Operation: Simple user interface designed for straightforward everyday operation.
- Event Logging: Automatically stores the most recent 30 alarm events.
- Wireless & IR Connectivity: Settings can be modified through supported wireless communication or the optional SENKO IR Link.
- Dock DUO Compatible: Optional multi-docking station supports calibration, bump testing, and automatic updates for up to four DUO TRACER units simultaneously.
- Replaceable Battery: Uses a replaceable 3.6V lithium primary battery.
- Global Hazardous Location Certifications: Multiple configurations carry IECEx, ATEX, CSA/UL, INMETRO, CNEx and other applicable certifications.
- 2-Year Warranty: SENKO specifies a two-year warranty from the date of purchase.
| Model | DUO TRACER |
| Detector Type | Portable Dual Gas Detector |
| Simultaneous Gas Detection | 2 Gases |
| Sensor Types | Electrochemical / NDIR |
| Measurement Method | Diffusion |
| CH₄ Range | 0–100% LEL; 1% LEL resolution |
| CO₂ Range | 0–5% Vol.; 0.01% Vol. resolution |
| CO Range | 0–500 ppm or 0–2,000 ppm; 1 ppm resolution |
| H₂S Range | 0–100 ppm; 0.1 ppm resolution |
| SO₂ Range | 0–20 ppm; 0.1 ppm resolution |
| H₂ Range | 0–1,000 ppm; 1 ppm resolution |
| NH₃ Range | 0–100 ppm; 1 ppm resolution |
| NO₂ Range | 0–20 ppm; 0.1 ppm resolution |
| O₂ Range | 0–30% Vol.; 0.1% Vol. resolution |
| O₃ Range | 0–5 ppm; 0.1 ppm resolution |
| Display | Liquid Crystal Display (LCD) |
| Alarm Types | Audible Buzzer, Flashing LEDs & Vibration |
| Data Logging | Most Recent 30 Alarm Events |
| Ingress Protection | IP67 – Waterproof & Dustproof |
| Operating Temperature | -4°F to +122°F (-20°C to +50°C) |
| Operating Humidity | 15%–90% RH, Non-Condensing |
| Dimensions | 2.2 × 3.5 × 0.83 in. (56 × 89 × 21 mm) |
| Instrument Weight | 7.05 oz (200 g) |
| Battery | Replaceable Primary Cell 3.6V (Li/SOCl₂) |
| Battery Life – Most Configurations | Approximately 2 Years* |
| Battery Life – NDIR Configurations | Approximately 3 Months* |
| Enclosure | Rubberized Polycarbonate |
| Attachment | Clip for Clothing, Belts or Helmets |
| Included Components | Calibration Cap, Manual, Calibration & Test Certificate |
| Optional Accessories | SENKO IR Link Communication & Dock DUO |
| Warranty | 2 Years from Date of Purchase |
*Battery-life specifications are based on approximately 8 hours of daily use with wireless communication turned off. Actual battery life varies with configuration, usage patterns and operating environment. NDIR-equipped DUO TRACER configurations have substantially shorter battery life.
Available gas combinations and hazardous-location approvals vary by DUO TRACER configuration. Verify the required gas combination and model configuration before ordering.
Product Documentation