Product: HEATH Remote Methane Leak Detector-FR (RMLD-FR)

HEATH Remote Methane Leak Detector-FR (RMLD-FR)
The RMLD – First Responder (RMLD-FR™), allows for the rapid scan of standard venting points inside a structure from a safe distance to establish the presence of methane gas by first responder and fire service personnel. The instrument is based on Heath Consultants’ popular RMLD legacy and RMLD-CS™ designs, with many of the same functionality and features as the RMLD-CS version but with a streamlined user interface.
Most often, first responders/fire service are called to address fire and major natural gas emergencies, using equipment that places them too close to possibly harmful structures.
Technical Overview
The remote detection of the RMLD-FR enables the operator to shine the beam through most windows, providing them a visual and audible signal regarding the presence of methane gas. This rapid scan allows first responders to make quick decisions and establish control of the gas and ignition sources if a detection is present.
The RMLD‑FR™ is a handheld remote methane leak detector that uses tunable diode laser absorption spectroscopy (TDLAS) to identify methane gas at a distance up to approximately 100 ft (30 m), with a sensitivity of 5 PPM‑M. It weighs about 3 lb, runs on a removable, rechargeable lithium‑ion battery for roughly 8 hours, and features a 3.5″ colour LCD with integrated color camera and graphical user interface in an IP54‑rated housing for outdoor use. The instrument logs methane readings, GPS data, timestamps, and battery information to internal memory and includes built‑in self‑test functionality with an integrated test gas cell in the carrying case.
Features
- Self-Test
- Spotter laser
- Lightweight
- Color camera
- Graphical user interface
- GPS
- Wireless Connectivity
- WiFi
- Dual battery charger
- Ergonomic housing
- Replaceable and rechargeable battery
Benefits
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Enhances safety by allowing first responders to detect methane from a safe distance, including through most windows and vent points.
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Speeds decision‑making at natural gas incidents with fast, clear audible and visual alarms when methane levels exceed set thresholds.
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Reduces setup and training time with a simplified interface based on proven RMLD and RMLD‑CS designs.
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Supports documentation, reporting, and post‑incident review through onboard data logging with GPS and timestamped measurements.
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Performs reliably in demanding field conditions, with an IP54 rating, a wide operating temperature range, and up to 8 hours of battery life.
Accessories Included:
- Carrying case
- Charge
- Calibration cell
General
RMLD-FR Weight
3 lbs (approx.)
Carry Case Dimensions
21” x 17.5” x 9.5”
Storage
Internal SD card (not removable)
Power
Battery
Removable, rechargeable
Lithium-ion pack, 10.8 VDC 3.2Ah
Battery Run Time
8 hours at 32° F (approx.)
Battery Charger
External
110-240 VAC, 50/60 Hz Universal
Charge Time
2-3 hours full charge (approx.)
Charging Indicator
Integrated into Dual Battery Charger
Detection Method/
Measurement System
Tunable Diode Laser Absorption
Spectroscopy (TDLAS)
Detection Distance
100 ft (30m) nominal - may vary due to
background type and conditions
Measurement Range
0 to 50K PPM-M
Sensitivity
5 PPM-M at distances from 0 to 100 ft (30m)
Beam Size
Conical in shape with a 22”
diameter at 100 ft (55cm at 30m)
Display
3.5” color LCD
320x240
Color Camera
Aperture
f/2.6
FOV
94DEG (at 6.0mm image circle)
Lasers
IR Laser
Class I
Spotter Laser
On time duration is 2 minutes
Class 2 (II) <2mW @ 532nm
Spot size is 7mm at 15M
Complies with 21 CFR 1040.10 and 1040.11
except for deviations pursuant to Laser
Notice No. 50, dated June 24, 2007
Eye Safety Warning
Do not stare into beam or view directly
with optical instrument
GPS
Compatible With
GPS
GLONASS
Beidou
Galilieo
Communication
Wireless connectivity (to support future
features and mobile applications)
WiFi
USB Dual Mode
USB Port Max Rating
UM = 5V, IN = A
Alarms
Digital Methane Detection (DMD)
Audible tone and visible color border when
detection threshold exceeded
Adjustable Detection Alarm Level
50’
1 to 200 PPM M
100’
1 to 400 PPM M
System Fault & Warnings
Audible alarm and visual indication on the
display
Built-In Self Test
Verifies operation and adjusts laser
wavelength for maximum sensitivity
Test gas cell integrated within carrying case
Data Logging
Saves to Internal Memory
FAULT logs
Self Test logs
Captures
Data Collected
Includes, but not limited to:
CH4 PPM-M measurement
GPS location
Timestamp
Battery level
Battery voltage
Serial number of the instrument
Operating Conditions
Operating Temperature
0° to +122° F (-17° to 50° C)
Humidity
5 to 95% RH, non-condensing
Altitude
Up to 6560 ft (2000 m)
Environment of Use
Pollution degree 2 or better
Outdoor use
Regulatory
Instrument Protection
IP54 (water splash and dust resistant)
Compliance
EMC (EN61000-6-2, EN6100-6-4)
Low Voltage Directive (2014/35/EU)
Radio Equipment Directive
(2014/53/EU)
ETSI EN 301 489-1 v2.2.0
EN 61326-1:2013
47 CFR Part 15 & ICES-003
Ordinary Location Safety
UL 61010-1
CAN/CSA-C22.2 No 61010-1-12
Hazardous Location Safety
Class I, Zone 2, AEx ic op is IIA T4 Gc
Class I, Division 2, Group D
Intrinsically Safe
Connect With An Expert Today
Paul Blair
(Eastern Canada)
Tel: (519) 930-2411
Gishan Perera
(Quebec)
Tel: (519) 930-6201
Melodie Henderson
(Western Canada)
Tel: (403) 668-1646
Hetek at a Glance
Hetek is a Canadian provider of gas detection equipment, calibration services, and technical support for industrial, commercial, and utility environments. We supply, service, and support single‑gas and multi‑gas instruments, fixed gas detection systems, wireless monitoring solutions, and related accessories. Hetek performs calibration, bump testing, sensor replacement, and repair services both in‑lab and on‑site across Canada. To support ongoing safety and monitoring requirements, Hetek maintains inventory for replacement sensors, parts, and equipment.
