Date:2025-6-26 Hits:39
MPA mPower Electronics VOXI PID Fixed VOC Monitors
MP812 M008-0001-000
MP815 M008-0003-000

The VOXI PID series of fixed transmitters utilize Photo-ionization Detection (PID) technology to monitor Volatile
Organic Compounds (VOCs) at resolutions of 1 ppb with the MP812 and 10 ppb with the MP815. A built-in heater
prevents condensation of moisture in the transmitter under high-humidity conditions. Innovative designs of the ultraviolet
(UV) 10.6 eV lamp and electrometer reduce contamination, producing more accurate and stable readings
and extending maintenance intervals. Mobile apps and a Bluetooth controller make on-site configuration, testing,
and trouble-shooting easy and handy. The OLED display is visible from a distance even under strong lighting or
darkness, while data and alarms are continuously sent to a controller wirelessly or via cables. Major applications
include VOC emission monitoring around petrochemical plants, manufacturing and processing facilities.
Features, Functions and Benefits
• VOC emissions monitoring
• Several hundred gas correction factors
• 1 ppb or 10 ppb resolution (separate models)
• Outstanding linearity over full measurement range
• Auto-ranging and auto-zeroing
• Wide temperature range of -40° to +70°C
• Built-in heater to prevent condensation
• OLED display for maximum visibility outdoors
• Mobile App and Bluetooth controller for handy configuration and testing
• Outputs: 4-20 mA, CAN/Modbus, 3 Relays and output to strobe or horns
• Lamp glow indicator
• Rugged, explosion-proof housing
• Easy access to clean lamp & sensor
• Innovative PID for performance & long life
Fixed VOC Monitors
Ver
VOXI PID Specifications
Detector Specifications
Size 8.4 x 7.1 x 5.0 in (213 x 180 x 127 mm)
Weight 3.3 lbs. (1.5 kg)
Sensor
Photo-ionization detector with standard 10.6 eV lamp (Optional 9.8 eV lamp for BTEX screening)
Detectable Chemicals
Volatile Organic Compounds (VOCs): fuels, solvents, paints, fumigants, ammonia, etc.
Calibration
Two-point calibration
Response Time (for isobutylene)
t90 ≤30 seconds (with standard glass-fiber filter)
t90 ≤5 seconds (w/o glass-fiber filter)
Temperature
-40° to 158°F (-40° to 70°C)
Humidity
0% to 100% Relative humidity
Power
<5W; 12-30 VDC supply
Sampling Pump
Diaphragm pump ≥400 cc/min when responding chemicals are present. Pump duty cycling to ≥130 cc/min when PID response is below pre-set threshold.
Sample from up to 100 ft (30 m).
Display
128×64 OLED:
•Real-time readings (auto-ranging 4 digits)
•Gas type
•Measurement unit
•Pump status
•Bluetooth and wireless statuses if available
Communication
Remote Bluetooth programmer and Android App Outputs
•Analog: 4-20 mA (3 wires)
•Digital: RS-485,
•CAN or ModBus
•3 relays
•1 port to external strobe and horn
Alarms
OLED flashing, external strobe and horn
Housing
Aluminum alloy
Housing Entries
2 Conduit entries ¾” NPT
IP Rating IP-65
EMI/RFI
Highly resistant to EMI/RFI
Compliant with EMC Directive 2014/30/EU
Installation
Pipe bracket, wall mount
Warranty
2 Years including PID sensor, 1 year on 10.6 eV lamp, 6 months on 9.8 eV lamp
Safety Certifications
IECEx Ex db ib IIC T6 Gb
Ex ib tb IIIC T80°C Db
European Conformity
Ex db ib IIC T6 Gb
Ex ib tb IIIC T80°C Db
Ex ia IIC T4 Ga (MP210 BLE programmer)
-20° C ≤ Tamb ≤ +50°C
Model Options
Model VOC Range (ppm) Accuracy
Part No.
MP812 M008-0001-000
0.001-200 10.6eV 0.05-200 9.8eV
±2% full scale
MP815 M008-0003-000
0.01-5,000
±5% full scale
Options
•Calibration gas & regulator
•Filter pack
•Mounting bracket
•Remote programmer
•9.8 eV lamp as specified
Applications
•Fence-line & Environmental monitoring
•Air Quality control
•Oil, gas & refineries
•Chemical plants
•Manufacturing & processing
•Paints, coatings & adhesives
•Pharmaceuticals & food processing
•Solvent recovery
•Paper pulp and wastewater treatment
•Fumigation
MP812 M008-0001-000
MP815 M008-0003-000

The VOXI PID series of fixed transmitters utilize Photo-ionization Detection (PID) technology to monitor Volatile
Organic Compounds (VOCs) at resolutions of 1 ppb with the MP812 and 10 ppb with the MP815. A built-in heater
prevents condensation of moisture in the transmitter under high-humidity conditions. Innovative designs of the ultraviolet
(UV) 10.6 eV lamp and electrometer reduce contamination, producing more accurate and stable readings
and extending maintenance intervals. Mobile apps and a Bluetooth controller make on-site configuration, testing,
and trouble-shooting easy and handy. The OLED display is visible from a distance even under strong lighting or
darkness, while data and alarms are continuously sent to a controller wirelessly or via cables. Major applications
include VOC emission monitoring around petrochemical plants, manufacturing and processing facilities.
Features, Functions and Benefits
• VOC emissions monitoring
• Several hundred gas correction factors
• 1 ppb or 10 ppb resolution (separate models)
• Outstanding linearity over full measurement range
• Auto-ranging and auto-zeroing
• Wide temperature range of -40° to +70°C
• Built-in heater to prevent condensation
• OLED display for maximum visibility outdoors
• Mobile App and Bluetooth controller for handy configuration and testing
• Outputs: 4-20 mA, CAN/Modbus, 3 Relays and output to strobe or horns
• Lamp glow indicator
• Rugged, explosion-proof housing
• Easy access to clean lamp & sensor
• Innovative PID for performance & long life
Fixed VOC Monitors
Ver
VOXI PID Specifications
Detector Specifications
Size 8.4 x 7.1 x 5.0 in (213 x 180 x 127 mm)
Weight 3.3 lbs. (1.5 kg)
Sensor
Photo-ionization detector with standard 10.6 eV lamp (Optional 9.8 eV lamp for BTEX screening)
Detectable Chemicals
Volatile Organic Compounds (VOCs): fuels, solvents, paints, fumigants, ammonia, etc.
Calibration
Two-point calibration
Response Time (for isobutylene)
t90 ≤30 seconds (with standard glass-fiber filter)
t90 ≤5 seconds (w/o glass-fiber filter)
Temperature
-40° to 158°F (-40° to 70°C)
Humidity
0% to 100% Relative humidity
Power
<5W; 12-30 VDC supply
Sampling Pump
Diaphragm pump ≥400 cc/min when responding chemicals are present. Pump duty cycling to ≥130 cc/min when PID response is below pre-set threshold.
Sample from up to 100 ft (30 m).
Display
128×64 OLED:
•Real-time readings (auto-ranging 4 digits)
•Gas type
•Measurement unit
•Pump status
•Bluetooth and wireless statuses if available
Communication
Remote Bluetooth programmer and Android App Outputs
•Analog: 4-20 mA (3 wires)
•Digital: RS-485,
•CAN or ModBus
•3 relays
•1 port to external strobe and horn
Alarms
OLED flashing, external strobe and horn
Housing
Aluminum alloy
Housing Entries
2 Conduit entries ¾” NPT
IP Rating IP-65
EMI/RFI
Highly resistant to EMI/RFI
Compliant with EMC Directive 2014/30/EU
Installation
Pipe bracket, wall mount
Warranty
2 Years including PID sensor, 1 year on 10.6 eV lamp, 6 months on 9.8 eV lamp
Safety Certifications
IECEx Ex db ib IIC T6 Gb
Ex ib tb IIIC T80°C Db
European Conformity
Ex db ib IIC T6 Gb
Ex ib tb IIIC T80°C Db
Ex ia IIC T4 Ga (MP210 BLE programmer)
-20° C ≤ Tamb ≤ +50°C
Model Options
Model VOC Range (ppm) Accuracy
Part No.
MP812 M008-0001-000
0.001-200 10.6eV 0.05-200 9.8eV
±2% full scale
MP815 M008-0003-000
0.01-5,000
±5% full scale
Options
•Calibration gas & regulator
•Filter pack
•Mounting bracket
•Remote programmer
•9.8 eV lamp as specified
Applications
•Fence-line & Environmental monitoring
•Air Quality control
•Oil, gas & refineries
•Chemical plants
•Manufacturing & processing
•Paints, coatings & adhesives
•Pharmaceuticals & food processing
•Solvent recovery
•Paper pulp and wastewater treatment
•Fumigation