Confined Space 5 Gas Monitor
Features
Smallest & lightest detector
Detect up to 5 gases simultaneously – Confined Space: LEL, O2, H2S, CO – Toxics/IR Sensors: HCN, NH3, NO2, PH3, SO2, and CO2 – H2 Compensated CO sensor available
Simple 2-button operation
Bluetooth communication with iOS & Android App
3 user adjustable alarm levels
Panic Alarm & Man Down Alarm
Large full dot, auto-backlit display with auto-rotation
Field replaceable sensors & filters
Water and dust resistant design, IP66/68
3 Year Warranty*
GX-3R Pro Gas Detector with Wireless Communication
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.
* 3 year warranty on material and workmanship including sensors (1 year for Ammonia sensor)
Personal monitoring
Confined spaces
Refineries/petrochemical
Utilities
Oil and Gas
Water/Wastewater
Fire Services
Construction
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: 10 ppm
NH3
0 ~ 400.0 ppm (0.5 ppm)
A1: 25.0 ppm │ STEL: 1.0 ppm│ A2: 35.0 ppm│ TWA: 0.30 ppm│A3: 300.0 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: 1.00 ppm
PH3
0 ~ 20.00 ppm (0.01 ppm)
A1: 0.30 ppm │ STEL: 1.0 ppm │ A2: 0.60 ppm │ TWA: 0.30 ppm │ A3: 0.60 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
Over scale 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 + EC with Bluetooth
23 hours
14 hours
4-gas + IR
16 hours
7 hours
4-gas + IR with Bluetooth
15 hours
6 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
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, IECEx, MED
Warranty
Three years material and workmanship including sensors (1 year for Ammonia sensor)
Part #
Description
07-6054
Sensor gasket, GX-3R Pro
07-6055
Sensor case o-ring, GX-3R Pro
10-1086
Screw with flat and lock washers, M2 x 4 phillips
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
GX-3R Pro Software
Datalogging Software (version 06228) Zip file
Literature & Manuals
GX-3R Pro Datasheet
GX-3R Pro Quick Reference Card
GX-3R Pro Manual CSA/ATEX Approval Version
GX-3R Pro Manual TIIS Approval Version
GX-3R Pro Datalogging Manual
Guardhat iOS App User Manual
Guardhat SCC User Manual
IrDA Cable Driver Installation Guide
IrDa Reprograming Instructions (step by step procedure)
Certificates / Approvals
TIIS Approval Certificate for EX-Equipment
