RKI VOC Pro – PID Gas Detector

The VOC Pro Series Gas Detector is a versatile assembly that uses a PID sensor to detect a variety of gases. Wired power (12 to 35 VDC) with 4-20 mA analog and RS-485 Modbus outputs are standard. Magnetic switches allow for non-intrusive calibration while in the field as well as full system settings and diagnostics.

The VOC Pro represents the latest leading edge technology in fixed gas detection today.

SKU: VOC Pro – PID Gas Detector Categories: , ,



  • PID sensor options: 10.0 eV lamp / 11.7 eV / 10.6 eV ppb / 10.6 eV ppm

  •  Wired power (3-Wire), 12 to 35 VDC operating voltage

  • Operating temperature range -40°C to +54°C

  • Graphical LCD with LED backlight

  • 3 Push-button interface (ADD, MENU, SUB) with corresponding magnetic, non-intrusive switches

  • 2 Individually configurable alarms

  • 2 Front panel LED indicators (amber and red)

  • 2 Optional fully programmable alarm relays (dry contacts)

  • Output options: 4-20mA (3-wire) analog, RS-485 modbus (4 wire)

  • 1-Year warranty (see specifications)


Firebreak SA_RKI_Voc pro_Datasheet



Sensor Type PID
Operating Voltage Wired power (3-Wire) 12 to 35 VDC
Power Draw 2 Watts maximum
Protection Power electromagnetic interference (EMI) filter

4-20 mA surge suppression

RS-485 surge suppression

Display Screen 102×64 Resolution graphical LCD screen transflective (sunlight readable) with white LED backlight
Interface 3 Push-buttons (MENU, ADD and SUB)

3 Magnetic non-intrusive switches for calibration

Customizable Settings 2 Individual-configurable alarm LED/relay set-points
Temperature Range -40°C to +54°C (-40°F to +130°F)
Output (digital) RS-485 modbus
Wired (Analog) Output 4-20 mA (3-Wire)

Fault terminal

Optional 2 dry-contact relays with replaceable 4 amp fuses

Remote Sensor Kit

(Optional Additional Feature)

Remote sensor kit with enclosure (5 pin)

• PID sensor max. length: 35 feet

Product Dimensions 5.5 in, L x 6 in. W x 7 in. H (8 in. W x 17 in. H Max. dimensions with attachments)
Total Weight 6 lbs.
Hazardous Location


Main Enclosure Certified explosion / flame proof CQPSUS

Class I, Division 1 & 2, Groups B, C & D,
Nema 3, 4, 4X, 7 (B, C, D) 9 (E, F, G)

Temp.= -20°C to +60°C

Sensor Housing Certified explosion / flame proof CQPSUS

Class I, Division 1 & 2, Groups B, C & D

Temp.= -40°C to +60°C

Controllers Compatible with all RKI Beacon controllers, as well as most DCS / PLC systems: Beacon 110, Beacon 200, Beacon 410A and Beacon 800, MC-6400
Warranty 1-Year warranty for electronics, and PID sensor (Two months for 11.7 eV lamp)