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mPlatoon System

Mobile Wireless Multi-Gas Team Warning System


mLink - mobile wireless multi-gas team warning system


The mPlatoon System is a quickly deployable set of mobile multi-gas meters that communicate wirelessly to a central command station (mLink-F) up to 3 km (2 miles) distant. The system is ideal for Hazmat response, temporary venue protection, large industrial site activities, etc. The mLink-F connects with up to 8 Squads of 8 monitors each, for a total of 64 personnel with gas meters. An mSquad consists of one Head monitor (MP400H) and 3 or 7 Soldier monitors (MP400S) operating within a 0.8-km (1/2-mile) radius. Each 4- or 5-gas monitor has options for a full range of sensors for toxic gases, oxygen (O2), combustibles (LEL) and carbon dioxide (CO2). In addition to high gas concentration alarms, the Squad Head and central mLink-F modem receive any Man-Down alarms to notify them of a worker in distress. The overall operation is overseen from an Android smartphone or tablet that communicates by wireless BLE to the mLink-F within 10 m (33 ft.). The mLink-F normally runs on 100-240 VAC power and is not intrinsically safe, while all the Squad monitors run on batteries and are Class I Div I certified to operate in hazardous zones. However, the entire mPlatoon can be mobilized by operating the mLink-F out of a vehicle or utilizing its back-up battery, which runs for up to 18 hours. For smaller operations, the mLink-F can be replaced by the lower-cost mLink-P. The MP400S and MP400H have rugged construction and easy-to-learn 2-button operation.



  • Remote, wireless real-time readings and alarms including Man-down
  • Up to 64 remote 4- or 5-gas monitors in 8 Squads of 8 persons each
  • Up to 3 km (2 miles) distance to Squad Head and 800 m within Squad
  • Mobile system operation
  • 12-hour continuous operation on single Li-ion battery charge
  • USB Micro cable for local charge & communication
  • Wide selection of sensor types
mLink mLink-F mLink-P MP400H
Size w/o Antenna 11 x 6.6 x 3.9 in.
28 x 17 x 10 cm
5.0 x 3.6 x 1.9 in.
13 x 9.1 x 4.7 cm
5.7 x 3.3 x 1.7 in.
14 x 8.4 x 4.2 cm
Weight 31 oz (880 g) 16 oz (450 g) 15.5 oz (435 g)
IP IP 67 IP 54 IP 67
Temp. -4° to 131° F
-20° to 55° C
-4° to 122° F
-20° to 50° C
-4° to 122° F
-20° to 50° C
Power Source 100-240V AC w/ Back-up battery Li-ion Battery Li-ion Battery
Battery 18 hr 24 hr 12 hr
Range 3 km (2 miles) 3 km (2 miles) 0.8 km (1/2 mile)
Monitors 64 32 4 or 8 /mSquad
Certs. N/A N/A C1D1 ABCD T4
Freq. ISM License-free band (902-928 MHz) FCC Part 15 approved

MP400S and MP400H Specifications

Size 5.7 x 3.3 x 1.7 in (140 x 84 x 42 mm) w/o Antenna
Weight 15.5 oz (435 g)
Sampling MP400S – Internal pump; MP400H – Diffusion
Battery 12 hr (depends on sensors and pump installed)
Direct Readout Real-time gas concentrations; Battery status
STEL, TWA, peak and minimum values, and more
Display 128 x 128 graphical LCD, 1.77 x 1.73 in (45 x 44 mm), with LED backlight for enhanced readability
Calibration Zero and span calibration. Single or multiple sensor simultaneous calibration settings
Wireless Comm Poll gas concentration readings from Software on Android phone or tablet via MP400H and mLink-F
Alarms Push Notification via MP400H and mLink-F, plus local audible (95 dB @ 30 cm), visual (flashing LEDs), vibration and Man-down alarms
Direct Comm and Charging USB cable for charging, data download, instrument setup and firmware upgrades on PC or 100-240V AC charger, or CaliCase
Temperature -4° to 122°F (-20° to 50°C)
Humidity 0% to 95% Relative humidity (non-condensing)
IP Rating IP-65 MP400S (pump); IP-67 MP400H (diffusion)
Safety Certifications Class I, Div 1, Group ABCD T4, -20°C ≤ Tamb ≤ +50°C
IECEx Ex ia IIC T4 Ga
II 1G Ex ia IIC T4 Ga (pending)
European Conformity (pending)
EMC/RFI EMC directive: 2014/30/EU

Sensor Options

Sensor Types Toxic and O2, Pellistor for LEL, and NDIR for LEL, Vol% and CO2
Response time (t90) 20 s (LEL/CO/H2S/O2)
Others vary up to 120 s
Sensor Range Resolution
Oxygen (O2) 0-30% Vol 0.1% Vol
Combustibles (LEL%) 0-100% LEL 1% LEL
Hydrocarbons (Vol%) 0-100% Vol 0.1% Vol
CO2 (Carbon Dioxide) 0-50000 ppm 100 ppm
CO (Carbon Monoxide) 0-1000 ppm 1 ppm
H2S (Hydrogen Sulfide) 0-100 ppm 0.1 ppm
0-1000 ppm 1 ppm
CO + H2S CO 0-500 ppm 1 ppm
H2S 0-200 ppm 0.1 ppm
SO2 + H2S SO2 0-20 ppm 0.1 ppm
H2S 0-100 ppm 0.1 ppm
NH3 (Ammonia) 0-100 ppm 1 ppm
Cl2 (Chlorine) 0-50 ppm 0.1 ppm
H2 (Hydrogen) 0-1000 ppm 10 ppm
HCl (Hydrogen Chloride) 0-15 ppm 0.1 ppm
HCN (Hydrogen Cyanide) 0-100 ppm 1 ppm
NO (Nitric Oxide) 0-250 ppm 1 ppm
NO2 (Nitrogen Dioxide) 0-20 ppm 0.1 ppm
PH3 (Phosphine) 0-20 ppm 0.01 ppm
SO2 (Sulfur Dioxide) 0-20 ppm 0.1 ppm
ETO (Ethylene Oxide) 0-100 ppm 0.1 ppm
CH3SH (Methyl Mercaptan) 0-10 ppm 0.1 ppm