GX-3R Pro Gas Detector with Wireless Communication

Confined Space 5 Gas Monitor

Features

  • Smallest & lightest detector
    2.9″ W x 2.6″ H x 1.06″ D , 4.58 ounces

  • Detect up to 5 gases simultaneously
    Confined Space: LEL, O2, H2S, CO
    – Toxic/IR: HCN, NO2, SO2, and CO2
    – H2 Compensated CO sensor

  • Simple 2-button operation

  • Bluetooth communication with iOS & Android App

  • Non-Compliance Indicator

  • 3 user adjustable alarm levels

  • Panic Alarm

  • Man Down Alarm

  • Impact resistant body

  • Large full dot, auto-backlit display with auto-rotation

  • Stealth mode for law enforcement

  • Field replaceable sensors & filters

  • Water and dust resistant design, IP66/68

  • 3 Year Warranty

Contact RKI Sales

Description

GX-3R Pro Five Gas Monitor callouts

The GX-3R Pro is the world’s smallest 5-gas monitor weighing only
4.58 ounces and fits in the palm of your hand (2.9” W x 2.6” H x 1.06” D).
It simultaneously monitors and displays 5 different gases. In addition to monitoring standard confined space gases, LEL, O2, CO, & H2S, the
GX-3R Pro has a 5th channel where you can add infrared or toxic gas sensors (Hydrogen Cyanide (HCN) and Nitrogen Dioxide (NO2) sensors are currently available for the GX-3R Pro). Two of the four sensor slots have interchangeable sensors providing flexible configurations, which can easily be changed in the field.

RKI is pleased to announce the availability of  These 2 sensors are in stock and are the latest in toxic gas options added to the line of GX-3R Pro sensors.

The GX-3R Pro comes equipped with Bluetooth wireless communication, man-down alarm, the choice of alkaline or rechargeable power supply, and a 3 year warranty. The Lithium-ion battery pack will operate for 25 hours and will fully charge in 3 hours.

The GX-3R Pro utilizes Bluetooth communication to display direct gas readings from the instrument to a phone app, which is available free on either iOS or Android phones. Automatic notifications can be programmed to send text or email messages if there is an alarm event from the
GX-3R Pro.

Safety supervisors will appreciate the non-compliance indicator. The instrument flashes it’s 3 LED lights every 30 seconds in the following conditions; if the instrument has not been bump tested, or if calibration is due, or if there was a gas alarm event. The 3 LED lights will continue to flash once every 30 seconds until the non-compliance condition has been resolved. The 30 second interval is adjustable

 

Detectable Gases

Gas Measuring Range
(Increments)
Accuracy
Statement
Preset Alarms
Sensor Slot 1: Carbon Monoxide (CO) & Hydrogen sulfide (H2S) *Interchangeable
H2S / CO Dual EC 0 ~ 2000 ppm
(1 ppm)
± 5% of reading
or ± 5 ppm CO
A1: 25 ppm│ A2: 50 ppm
A3:1200 ppm│TWA: 25 ppm
STEL: 200 ppm
0 ~ 200.0 ppm
(0.1 ppm)
± 5% of reading
or ± 2 ppm H2S
A1: 5 ppm│ A2: 30 ppm
A3: 100 ppm│TWA: 1.0 ppm
STEL: 5.0 ppm
H2S
Only
EC 0 ~ 200.0 ppm
(0.1 ppm)
± 5% of reading
or ± 2 ppm H2S
A1: 5 ppm│ A2: 30 ppm
A3: 100 ppm│TWA: 1.0 ppm
STEL: 5.0 ppm
CO
H2 Compensated
EC 0 ~ 2,000 ppm ± 5% of reading
or ± 2 ppm CO
A1: 25 ppm│ A2: 50 ppm
A3: 1200 ppm│TWA: 25 ppm
STEL: 200 ppm
Sensor Slot 2: Combustibles (Methane as standard)
CH4 / HC Catalytic 0 ~ LEL (1% LEL) ± 5% of reading
or ± 2 % LEL
1st: 10% LEL │ 2nd: 25% LEL
3rd: 50% LEL │ Over:100% LEL
Sensor Slot 3: Oxygen (O2)
O2 EC 0 ~ 40.0% Vol.
(0.10%)
± 0.5% O2 Low 1: 19.5%│ Low 2: 18.0%
High: 23.5%│ Over: 40.0%
Sensor Slot 4: Toxics & CO2 *Interchangeable
HCN EC 0 ~ 30.0 ppm
(0.1 ppm)
± 10% of reading
or ± 5 % of full scale
A1: 5.0 ppm│ A2: 10.00 ppm
A3: 30.00 ppm│ TWA: 4.7 ppm
STEL: 4.7 ppm
NO2 0 ~ 20.00 ppm
(0.05 ppm)
A1: 2.00 ppm│ A2: 4.00 ppm
A3: 20.00 ppm│ TWA: 0.20 ppm
STEL: 2.00 ppm
SO2 0 ~ 100.0 ppm
(0.05 ppm)
A1: 2 ppm│ A2: 5 ppm
A3: 100 ppm│ TWA: 0.25 ppm
STEL: 0.25ppm
CO2 % IR 0 ~ 10.0% Vol.
(0.01%)
± 5% of reading
or ± 2 ppm
A1: 0.50% Vol.│ A2: 3.00% Vol.
A3: 4.00% Vol.│ TWA: 0.50% Vol.
STEL: 3.00% Vol.
CO2 ppm 0 ~ 10,000 ppm
(20 ppm)
A1: 5,000 ppm│ A2: N/A
TWA: N/A│STEL: N/A

Common Specifications

Sampling Method Diffusion sampling standard
(hand aspirator or clip-on motorized pump optional)
Display Full dot LCD with Autobacklight
and Autorotation
Alarm Types Gas Alarm Trouble Alarm
  • 2 increasing alarms
  • STEL
  • TWA
  • Overscale alarm
  • O2 decreasing/
    increasing
  • Sensor disconnection
  • Low battery
  • Circuit error
  • Calibration range error
  • Cal or bumpdue alarm
• Man Down Alarm
• Panic Alarm
Display of Alarm Gas Alarm Trouble Alarm
  • Flashing LED’s
  • Continuous buzzer (100 db @ 30cm)
  • Flashing gas value
  • Vibration
  • Flashing LED’s
  • Intermittent buzzer (95 db @ 30cm)
  • Display of error message
Operating Temp. & Humidity -20°C ~ +50°C
[ -4°F ~ +122°F ] 10 to 90% RH, non-condensing (continuous environment)
-40°C ~ +60°C
[ -40°F ~ +140°F ] 0 to 95% RH, non-condensing
(temporary environment)
Response Time Within 30 seconds (T90)
Power Source Config Li-ion Alkaline
4-gas + EC 25 hours 16 hours
4-gas + IR 16 hours 7 hours
Dimension & Weight 2.9” W x 2.6” H x 1.06” D
(Approx. 73 W x 65 H x 26 D mm), 4.58oz (with rubber boot)
Case Material Explosion proof, dust and water resistant to IP-66/68 (2m,1h) approval. Drop height 23 ft
Bluetooth Communication BLE: with iOS and Android phone app: RK Link
Datalogging Logs user ID, station ID, Calibration & Bump Test history, Alarm Events &
Alarm Trends
Standard Accessories Alligator clip, protective rubber boot, charger, calibration adapter
Optional Accessories
  • Padded carrying case
  • RP-3R Attachable sampling pump with 4” rubber nipple, 10’ hose and probe (up to 40’ hose available)
  • USB to IrDA downloading cable for datalogger
  • SDM-3R calibration station
  • Hand aspirator
Safety Design / Approvals ATEX, CSA
Warranty Three years material and workmanship including sensors

Application

  • Personal monitoring
  • Confined spaces
  • Refineries/petrochemical
  • Utilities
  • Oil and Gas
  • Water/Wastewater
  • Fire Services
  • Construction

Specifications

Detectable Gases

Gas Measuring Range
(Increments)
Accuracy
Statement
Preset Alarms
Sensor Slot 1: Carbon Monoxide (CO) & Hydrogen sulfide (H2S) *Interchangeable
H2S / CO Dual EC 0 ~ 2000 ppm
(1 ppm)
± 5% of reading
or ± 5 ppm CO
A1: 25 ppm│ A2: 50 ppm
A3:1200 ppm│TWA: 25 ppm
STEL: 200 ppm
0 ~ 200.0 ppm
(0.1 ppm)
± 5% of reading
or ± 2 ppm H2S
A1: 5 ppm│ A2: 30 ppm
A3: 100 ppm│TWA: 1.0 ppm
STEL: 5.0 ppm
H2S
Only
EC 0 ~ 200.0 ppm
(0.1 ppm)
± 5% of reading
or ± 2 ppm H2S
A1: 5 ppm│ A2: 30 ppm
A3: 100 ppm│TWA: 1.0 ppm
STEL: 5.0 ppm
CO
H2 Compensated
EC 0 ~ 2,000 ppm ± 5% of reading
or ± 2 ppm CO
A1: 25 ppm│ A2: 50 ppm
A3: 1200 ppm│TWA: 25 ppm
STEL: 200 ppm
Sensor Slot 2: Combustibles (Methane as standard)
CH4 / HC Catalytic 0 ~ LEL (1% LEL) ± 5% of reading
or ± 2 % LEL
1st: 10% LEL │ 2nd: 25% LEL
3rd: 50% LEL │ Over:100% LEL
Sensor Slot 3: Oxygen (O2)
O2 EC 0 ~ 40.0% Vol.
(0.10%)
± 0.5% O2 Low 1: 19.5%│ Low 2: 18.0%
High: 23.5%│ Over: 40.0%
Sensor Slot 4: Toxics & CO2 *Interchangeable
HCN EC 0 ~ 30.0 ppm
(0.1 ppm)
± 10% of reading
or ± 5 % of full scale
A1: 5.0 ppm│ A2: 10.00 ppm
A3: 30.00 ppm│ TWA: 4.7 ppm
STEL: 4.7 ppm
NO2 0 ~ 20.00 ppm
(0.05 ppm)
A1: 2.00 ppm│ A2: 4.00 ppm
A3: 20.00 ppm│ TWA: 0.20 ppm
STEL: 2.00 ppm
SO2 0 ~ 100.0 ppm
(0.05 ppm)
A1: 2 ppm│ A2: 5 ppm
A3: 100 ppm│ TWA: 0.25 ppm
STEL: 0.25ppm
CO2 % IR 0 ~ 10.0% Vol.
(0.01%)
± 5% of reading
or ± 2 ppm
A1: 0.50% Vol.│ A2: 3.00% Vol.
A3: 4.00% Vol.│ TWA: 0.50% Vol.
STEL: 3.00% Vol.
CO2 ppm 0 ~ 10,000 ppm
(20 ppm)
A1: 5,000 ppm│ A2: N/A
TWA: N/A│STEL: N/A

Common Specifications

Sampling Method Diffusion sampling standard
(hand aspirator or clip-on motorized pump optional)
Display Full dot LCD with Autobacklight
and Autorotation
Alarm Types Gas Alarm Trouble Alarm
• 2 increasing
alarms
• STEL
• TWA
• Overscale
alarm
• O2
decreasing/
increasing
• Sensor
disconnection
• Low battery
• Circuit error
• Calibration
range error
• Cal or bump
due alarm
• Man Down Alarm
• Panic Alarm
Display of Alarm Gas Alarm Trouble Alarm
• Flashing
LED’s
• Continuous
buzzer (100
db @ 30cm)
• Flashing gas
value
• Vibration
• Flashing
LED’s
• Intermittent
buzzer (95
db @ 30cm)
• Display
of error
message
Operating Temp. & Humidity -20°C ~ +50°C
[ -4°F ~ +122°F ] 10 to 90% RH, non-condensing (continuous environment)
-40°C ~ +60°C
[ -40°F ~ +140°F ] 0 to 95% RH, non-condensing
(temporary environment)
Response Time Within 30 seconds (T90)
Power Source Config Li-ion Alkaline
4-gas + EC 25 hours 16 hours
4-gas + IR 16 hours 7 hours
Dimension & Weight 2.9” W x 2.6” H x 1.06” D
(Approx. 73 W x 65 H x 26 D mm), 4.58oz (with rubber boot)
Case Material Explosion proof, dust and water resistant to IP-66/68 (2m,1h) approval. Drop height 23 ft
Bluetooth Communication BLE: with iOS and Android phone app: RK Link
Datalogging Logs user ID, station ID, Calibration & Bump Test history, Alarm Events &
Alarm Trends
Standard Accessories Alligator clip, protective rubber boot, charger, calibration adapter
Optional Accessories • Padded carrying case
• RP-3R Attachable sampling
Pump with 4” rubber nipple, 10’
hose and probe (up to 40’ hose
available)
• USB to IrDA downloading cable
for datalogger
• SDM-3R calibration station
• Hand aspirator
Safety Design / Approvals ATEX, CSA
Warranty Three years material and workmanship including sensors

Parts

GX-3R Pro Parts

Part # Description
07-6054 Sensor gasket, GX-3R Pro
07-6055 Sensor case o-ring, GX-3R Pro
10-1087 Screw for GX-3R Pro sensor cap & battery pack
13-0112RK Wrist strap
13-0124 Alligator Clip with installation screws
13-0125 Belt Clip with installation screws
20-0335 Rubber boot for GX-3R Pro
21-1950 LCD protective film for GX-3R/GX-3R Pro
21-1960 Bottom cover (sensor cap), GX-3R Pro
21-1961 Sensor retainer, GX-3R Pro
29-0700 Sensor case label for GX-3R Pro, CO/H2S / LEL /O2 /Toxic
33-0184-10 Sensor dust filters with internal gasket for GX-3R Pro, 10-pack
33-0554 Buzzer protection cover for GX-3R Pro
33-7130 Scrubber disk filter for H2S/CO sensor 5-pack
33-7131 Scrubber disk filter for LEL sensor, 5-pack
33-7132 Scrubber disk filter, charcoal, for CO & H2 comp CO sensor, GX-3R/GX-3R Pro, 5-pack
33-7133 Humidity filter disk for H2S sensor, GX-3R/GX-3R Pro, 5-pack
33-7134 H2S scrubber disk for SO2 sensor, GX-3R Pro, 5-pack
49-1625 Li-Ion battery pack for GX-3R Pro
49-1626 Alkaline battery pack for GX-3R Pro
ESR-A13D-SO2 Sensor, SO2 for GX-3R Pro
ESR-A13I-H2S Sensor, H2S for GX-3R/GX-3R Pro
ESR-A13P-CO Sensor, CO, GX-3R/3R Pro
ESR-X13P-OXY Sensor, O2 for GX-3R/GX-3R Pro
ESR-A1CP-CO-H Sensor, CO with H2 compensated for GX-3R/GX-3R Pro
ESR-A1DP-COHS Sensor, H2S/CO combo for GX-3R/GX-3R Pro
NCR-6309 Sensor, LEL for GX-3R/GX-3R Pro
IRR-0409 Sensor, CO2, 0-10% volume for GX-3R Pro
IRR-0433 Sensor, CO2, 0-10,000 ppm for GX-3R Pro

Video

This video is also available on YouTube and CD (by request)

Downloads

GX-3R Pro Software

download
Datalogging Software (version 06228)
download
IrDa Reprograming Instructions (step by step procedure)

Literature & Manuals

GX-3R Pro datasheet

GX-3R Pro Product Datatsheet

GX-3R quick reference card

GX-3R (Pro) Quick Reference Card


GX-3R Pro manual
GX-3R Pro Manual

GX-3R datalogging manual
GX-3R (Pro) Datalogging Manual

Distributor Resources

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