POLI Multi-Gas Detector Series: The Ultimate Solution for Industrial Gas Monitoring


Revolutionize Your Safety Protocols with Advanced Gas Detection Technology

Our cutting-edge range of gas monitors, including the MP400, MP400P, MP400S, and MP400H models, are engineered to cater to diverse industrial applications, ensuring unparalleled safety standards and compliance in various sectors. Whether you’re navigating the complexities of industrial hygiene, oil and gas operations, environmental monitoring, or confined space entry, the POLI series offers a robust solution tailored to your needs.

Unmatched Versatility and Precision

The POLI series stands out with its ability to offer 4- or 5-gas monitoring, covering essential gases such as oxygen (O2), combustibles (LEL), a wide array of toxic gas options, carbon dioxide (CO2), and volatile organic compounds (VOCs). Each model in the series is designed with specific features to meet the unique demands of different environments:

  • MP400: A foundational 4-gas model with diffusion sampling, typically configured for O2, LEL, carbon monoxide (CO), and hydrogen sulfide (H2S) to comply with confined space entry regulations.
  • MP400P: Features pumped sampling and an extensive selection of over 30 sensor options, including electrochemical (EC), pellistor, non-dispersive infrared (NDIR), and photo-ionization detector (PID) sensors, allowing for up to 6 gas measurements.
  • MP400S & MP400H: Specialized for wireless communication, these models facilitate real-time monitoring of gas concentrations and alarm statuses from remote locations, enhancing response times and visibility. The MP400H can communicate with up to 7 MP400S units, and for larger systems, up to 32 monitors can be integrated.

Key Features at a Glance

  • Versatile Sensor Options: With over 30 interchangeable sensors, including PID for VOCs, NDIR and catalytic for combustibles, and NDIR for CO2, the POLI series adapts to various detection needs.
  • Enhanced Safety Alarms: Real-time gas concentration readings are complemented by comprehensive alarm statuses, including Low, High, TWA, STEL, and Man-Down alarms, to ensure maximum safety.
  • Durable and User-Friendly Design: An IP-65/67 water and dust-resistant case, a 360-degree LED alarm bar, and a large graphical display with an icon-driven interface make operation and maintenance straightforward.
  • Extended Operation: Enjoy up to 16 hours of operation with a rechargeable Li-ion battery and 6 months of continuous data logging for detailed environmental monitoring.
  • Wireless Communication**: The MP400S and MP400H models offer wireless real-time communication for team coordination and enhanced situational awareness in complex environments.

Tailored Solutions for Diverse Industries

The POLI Multi-Gas Detector Series is the go-to choice for professionals in a wide range of industries, including chemical, pharmaceutical, telecommunications, and more. Its ability to detect the “Toxic Twins” in fire grounds and facilitate multi-gas leak detection in food and beverage, oil and gas, and other sectors, underscores its versatility and critical role in industrial safety compliance.

Connect with Us for Customized Gas Detection Solutions


Technical Specs

Specification Details
Size 5.74 x 3.31 x 1.65 in (140 x 84 x 42 mm)
Weight 14 oz (400 g)
Sensor Over 30 interchangeable and field-replaceable sensors including PID for VOCs, EC for Toxic and O2, Pellistor for LEL, and NDIR for LEL and CO2
Battery Rechargeable Li-ion pack: 16 hours in diffusion with no wireless, 14 hours in diffusion with wireless, 12 hours in pump with no wireless, and 10 hours in pump with wireless
Direct Readout Real-time reading of gas concentration, PID measurement gas and correction factor, Man Down Alarm on/off, individual compliance indicator, battery status, datalogging on/off, wireless on/off and reception quality STEL, TWA, peak and minimum values
Display 128 x 128 graphical LCD, 1.77 x 1.73 in (45 x 44 mm), with LED backlight. Automatic screen “flip” feature.
Keypad 2 operation keys
Sampling Built-in pump or diffusion
Calibration Manual or automatic bump test and calibration with CaliCase (separate orders)
Alarm Wireless remote alarm notification, audible (90dB@750px), vibration, visual (flashing bright red LEDs), on-screen indication of alarm conditions. Man Down Alarm with pre-alarm and real-time remote wireless notification.
Datalogging Continuous datalogging (6 months for 4 sensors at 1 minute intervals, 24/7)
Charging and Communication Charging, data download, instrument setup and firmware upgrades via PC comm, cradle, travel charger, or CaliCase. Wireless data and alarm status transmission via built-in RF modem (optional).
Temperature -4° to 122°F (-20°C to 50°C)
Humidity 0% to 95% relative humidity (non-condensing)
IP Rating IP-65 (pump); IP-67 (diffusion)
Safety Certifications UL/cUL: Class I, Div 1, Group A, B, C, D T4, -20°C ≤ Tamb ≤ +50°C (pending) EMC/RFI EMC directive: 2004/108/EC
Warranty 2-year including most sensors