
$1,144.00
See if it's really the one
Search with this product to compare it, find similar styles, or turn up something better before deciding.
The POLI multi-gas detectors (MP400/MP400P/MP400S/MP400H) offer 4- or 5-gas monitoring of oxygen (O2), combustibles (LEL), numerous toxic gas options, carbon dioxide (CO2), and volatile organic compounds (VOCs). The MP400 is a basic 4-gas model with diffusion sampling, often configured with O2, LEL, carbon monoxide (CO) and Hydrogen Sulfide (H2S) for confined space entry compliance. The MP400P has pumped sampling and offers a full range of over 30 sensor options, including electrochemical (EC), pellistor, non-dispersive infrared (NDIR) and photo-ionization detector (PID). With 4 sensor slots the use of combination sensors allows up to 6 gases to be measured (2 high-powered sensors at a time). The MP400S and MP400H are used in wireless communication systems for real-time monitoring of gas readings and alarm status, including man-down alarm, from remote locations for better visibility and faster response. 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) Can be configured with different gases. Call 800-833-7958 Confined Space Entry Kit includes Hard case, hand probe w/ 3-ft tubing, extra 10-ft tubing, 2 filters, 58-L cylinder of 4-gas cal mix.
Have a question about this?
We currently ship within the US, with more countries coming soon.
Final cost and dates are confirmed at checkout.
🇺🇸 Ship from USA · On Agora since 2026
$1,144.00