Description

POLI Multi-Gas Detectors

Professional gas detection and alarm systems

The POLI Multi-Gas Detector Series from mPower Electronics delivers versatile and rugged 4- and 5-gas detection, offering real-time protection in confined spaces, industrial environments, and emergency response scenarios. The MP400 is a reliable diffusion-based 4-gas monitor, commonly configured with O₂, LEL, CO, and H₂S for OSHA-compliant confined space entry. The MP400P expands capabilities with pumped sampling and supports over 30 interchangeable sensors, including electrochemical (EC), pellistor, NDIR (non-dispersive infrared), and PID (photo-ionization detector) for VOC monitoring.

With 4 sensor slots and dual or combination sensors, the MP400P can monitor up to 6 gases simultaneously. For advanced connectivity, the MP400S and MP400H models offer wireless communication for centralized data monitoring and remote response. The MP400H serves as a head unit, linking with up to 7 MP400S field units for real-time gas readings, alarm status, and man-down alerts—ideal for coordinated operations and rapid intervention.

Features

POLI Multi-Gas

Product Features

Available in diffusion or pump version
Over 30 interchangeable sensor options, including PID for VOC, NDIR and catalytic for combustibles, and NDIR for CO2
4 Sensor slots for up to 6 gas measurements using combination sensors
Real-time gas concentration readings
Alarm status including Low, High, TWA, STEL and Man-Down alarms

6 Months continuous datalogging
16-Hour rechargeable Li-ion battery (diffusion version)
IP-65/67 water and dust resistant case
360-Degree LED alarm bar; Flip screen
Large graphical display icon-driven user interface through intuitive, simple-to-operate two-button user interface

Easy access to pump, sensor, filter and battery
Smart Sensors store calibration data, so they can be swapped in the field
USB Micro charger & communications cable
Optional POLI MonoDock station for automated bump test and calibration
Wireless real-time remote team communication available (up to 32 monitors)

Specifications

Device Specifications

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 (sold separately)
Alarm	Wireless remote alarm notification, audible (90dB@750px), vibration, visual (flashing bright red LEDs), and on-screen indication. 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 & Communication	Charging, data download, setup, and firmware via PC/laptop using comm cradle, travel charger, or CaliCase. Wireless data and alarm 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 directive: 2004/108/EC
Warranty	2-year including most sensors