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Item Number: MPA1-21A601-02040
Manufacturer Part ID: MPA1-21A601-02040
Manufacturer: mPower Electronics
Retail: $1,069.20
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POLI Gas Detector MP400P is a internal pump 4 gas detector for worker safety in hazardous locations, with oxygen, combustible, carbon monoxide and hydrogen sulfide sensors. It is designed to be extremely rugged with a robust housing and gas sampling by internal pump. The simple, 2 button operation results in ultimate ease of use and significantly reduce time spent training the user. The rechargeable Li-Ion battery pack lasts 16 hour or more in typical use and the Man-Down alarm feature notifies nearby workers if the user becomes incapacitated.

Save now! One Unit available was used for demonstrations 3 times in offices, looks new out of the box. 


  • Pump sampling
  • Battery operation of 16 hours
  • Durable double sot outer case
  • 360° LED alarm bar
  • Man-Down alarm
  • USB micro charger and communications cable
  • Flips screen
  • Integrated calibration cup
  • Smart sensor carry ID and calibration
  • 6 months continuous data-Logging
  • Modular design

Discounted pricing available when ordering multiple units, please contact us via quotation form!

Instrument Specifications

Detector Eletrochemical for Oxygen, Carbon Monoxide & Hydrogen Sulfide

Pellistor for Combustible
Battery Rechargeable Lithium-ion
Operating Periods Diffusion: Up to 16 hours
Graphic Display 128 x 128 graphical LCD, 1.77 x 1.73″

LED backlight for enhanced display

Automatic screen “flip” feature
Keypad Two button operation
Direct Readout Real time reading of gas concentrations

Battery status

Visual compliance indicator

Datalogging on/off

STEL, TWA, peak and minimum values

Man-Down alarm on/off
Alarm Audible: 90 dB @ 30 cm

Visual: Flashing bright red LEDs


On-screen indication of alarm conditions

Man-Down alarm
EMI/RFI EMC directive: 2004/108/EC
IP Rating IP-67
Data Logging Continuous datalogging, 6 months for 4 sensors at 1 minute intervals, 24 hours/day and 7 days/week
Communication & Charging Charging, data download, instrument setup and firmware upgrades on PC or laptop via PC Comm, cradle, travel charger or CaliCase
Temperature -4* to 122°F
Humidity 0-95% rH, non-condensing
Size 5.74″ x 3.31″ x 1.65″
Weight 13.5 ounces
Approvals Class I, Div 1, Groups A, B, C, D

Sensor Specifications

Gas Range Resolution
Combustible Gas 0-100% LEL 1%
Oxygen 0-30% 0.1%
Carbon Monoxide 0-1,000 ppm 1 ppm
Hydrogen Sulfide 0-100 ppm 0.1 ppm

Alternative Models

Each POLI Multi Gas Detection instrument includes monitor and sensors as specified, SS alligator clip, rechargeable Li-Ion battery, calibration hose, instructions and quick reference guide. For large quantity purchases or quotations pricing, please contact National Supply Network at 1-888-539-3066.

Description Catalog No.
POLI 4 Gas Detector, LEL, O2, CO, & H2S Sensors M004-0001-000
POLI 3 Gas Detector, LEL, O2, & H2S Sensors M004-0002-000
POLI 2 Gas Detector, LEL & O2 Sensors M004-0005-000
POLI Single Gas Detector, LEL Sensor M004-0009-000

MP400 POLI Gas Detector Datasheet

Size5.74 x 3.31 x 1.65 in (140 x 84 x 42 mm)
Weight14 oz (400 g)

30 interchangeable and field-replaceable sensors including PID for

VOCs, EC for Toxic and O2, Pellistor for LEL, and NDIR for LEL and CO2

Li-ion pack:18 hours in diffusion with no wireless, 16 hours in

diffusion with wireless, 12 hours in pump with no wireless, and 10 hours

in pump with wireless
Direct ReadoutReal-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
Display128 x 128

graphical LCD, 1.77 x 1.73 in (45 x 44 mm), with LED backlight for

enhanced display readability. Automatic screen “flip” feature.
Keypad2 operation keys
SamplingBulit-in pump or diffusion
CalibrationManual or automatic bump test and calibration with CaliCase (separate orders)

remote alarm notification, audible (90dB@750px), vibration, visual

(flashing bright red LEDs), and on-screen indication of alarm conditions

Man Down Alarm with pre-alarm and real-time remote wireless

DataloggingContinuous datalogging (6 months for 4 sensors at 1 minute intervals, 24 hours a day and 7 days a week)
Charging and CommunicationCharging,

data download, instrument setup and firmware upgrades on PC or laptop

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)
Humidity0% to 95% relative humidity (non-condensing)
IP RatingIP-65 (pump); IP-67 (diffusion)
Safety CertificationsUL/cUL: Class I, Div 1, Group A, B, C, D
T4, -20°C ≤ Tamb ≤ +50°C (pending)
EMC directive: 2004/108/EC
Warranty2-year including most sensors

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