SKU: RKI01-72-FA-A-A10

RKI GX-Force Sample Draw 4 Gas Monitor 72-FA-A-A10

$1,061.67

Ships in 1 - 2 weeks

Description

The RKI GX-Force Sample Draw 4 Gas Monitor measures the standard confined space gases (LEL combustibles, oxygen, carbon monoxide, and hydrogen sulfide) through a powerful internal sample pump with a 100-foot sampling range. Built around high-quality micro-sensor technology compatible with the GX-3R, GX-3R Pro, and 04 Series and Gaswatch 3 instruments, the GX-Force is the sample-draw workhorse for pre-entry confined space monitoring and industrial leak investigation.

With the GX-Force, you have multiple tools in one instrument. Two operating modes let a single unit cover both duties: Normal mode for confined space and personnel safety monitoring, and Leak Check mode for combustible-gas leak investigation with ppm-range sensitivity. The GX-Force operates up to 30 hours on a lithium-ion battery and has a large auto-backlit LCD showing all gas readings, battery level, and current time. Standard alarms include vibration, visual, and audible — latching or non-latching. A microprocessor continuously checks the instrument for sensor connections, low battery, circuit trouble, low flow, and calibration errors.

Applications: Personal monitoring, confined spaces, refineries and petrochemical, utilities, oil and gas, water and wastewater, fire services, construction.

Key Features:

2 operating modes — Normal and Leak Check (ppm combustible detection)
Internal sample pump with 100′ sample range
30 hours of operation (lithium-ion battery)
USB Type-C charging & data connection
Easy to grip lightweight design — 2.5″ W x 6.81″ H x 1.85″ D, 9.87 oz
Water and dust resistant design, IP67
Field-replaceable sensors & filters
Impact-resistant body
Intrinsically safe
Large LCD auto-backlit display
3-year warranty

Detection target gas	Combustible gas (CH4)	Oxygen (O2)	Carbon monoxide (CO)	Hydrogen sulfide (H2S)
Detection principle	Catalytic combustion	Electrochemical type	Electrochemical type	Electrochemical type
Detection range	0 – 100 % LEL	0.0 – 40.0 vol %	0 – 2,000 ppm	0.0 – 200.0 ppm
Resolution	1 % LEL	0.1 vol %	1 ppm	0.1 ppm
Alarm setpoints	1st alarm: 10 % LEL 2nd alarm: 25 % LEL 3rd alarm: 50 % LEL OVER alarm: 100 % LEL	L alarm: 19.5 vol % LL alarm: 18.0 vol % H alarm: 23.5 vol % OVER alarm: 40.0 vol %	1st alarm: 25 ppm 2nd alarm: 50 ppm 3rd alarm: 1200 ppm TWA alarm: 25 ppm STEL alarm: 200 ppm OVER alarm: 2,000 ppm	1st alarm: 5.0 ppm 2nd alarm: 30.0 ppm 3rd alarm: 100.0 ppm TWA alarm: 1.0 ppm STEL alarm: 5.0 ppm OVER alarm: 200.0 ppm
Response time (T90)	Within 30 seconds	Within 20 seconds	Within 30 seconds	Within 30 seconds

Brochure:

Specification Sheet:

Quick Reference Guide:

Manual:

Data Logger Manual:

FAQ: Can the GX-Force measure % Vol.?

FAQ: Does the GX-Force Have a Leak Check Function?

For customers with existing GX-Force units, you may download the latest firmware update and follow the provided instructions to add the Leak Check mode to previously shipped instruments.

Part Number:
72-FA-A-A10 — GX-Force, 4 gas, LEL/O2/combo H2S & CO with Li-Ion battery, 100–240 VAC charger, belt clip, USB A to USB C data downloading cable, rubber nozzle, 10′ hose with probe.

Frequently Asked Questions

What gases does the GX-Force monitor detect?

The GX-Force simultaneously measures four confined space gases: LEL combustibles (default calibrated to methane/CH₄), oxygen (O₂, 0–40 vol %), carbon monoxide (CO, 0–2,000 ppm), and hydrogen sulfide (H₂S, 0–200 ppm). In Leak Check mode, combustible gas is also displayed in the ppm range for sensitive leak investigation.

How long does the battery last and how do I charge it?

The GX-Force runs up to 30 hours per charge on its built-in lithium-ion battery. Charging is via USB Type-C — use the included 100–240 VAC AC adapter (part 49-0139) for wall charging or the 12–24 VDC vehicle adapter (part 49-2022) for in-vehicle charging.

What is the maximum sample-draw hose length for the GX-Force?

The internal pump supports up to a 100-foot (approximately 30 m) hose for remote-point sampling. This range makes the GX-Force well-suited for monitoring a confined space from outside the entry point before a worker enters. Hose kits and rubber sampling nozzles are available accessories.

Are the GX-Force sensors field-replaceable?

Yes. All four sensors in the GX-Force are designed for field replacement without special tools. Replacement sensors available for the GX-Force include the ESR-A1DP-COHS (dual CO/H₂S), ESR-X13P-OXY (O₂), and NCR-6309 (LEL). RKI recommends replacing sensors at or before their rated service life (typically 2–3 years for electrochemical cells).

What accessories are available for the GX-Force?

PK Safety stocks a full range of GX-Force accessories: the RKI SDM-Force Calibration Station (automated bump testing and calibration docking station), the 100–240 VAC AC adapter (49-0139), the 12–24 VDC vehicle DC adapter (49-2022), replacement sensors (ESR-A1DP-COHS, ESR-X13P-OXY, NCR-6309), 4-gas calibration gas mixture (81-0154RK-04), and complete kits including a protective padded case. Call PK Safety at 800.829.9580 for accessory guidance.