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MultiRAE Benzene with Benzene Specific Measurement

The MultiRAE Benzene multigas monitor is a groundbreaking new development for gas detection. The MultiRAE Benzene is the industry’s first wireless portable six-gas monitor for low-level, benzene-specific, VOC and multigas gas detection.

For best pricing, please call AFC International at 1-800-952-3293, 219-987-6825 or fax 219-987-6826 or email


The MultiRAE Benzene multigas monitor is a groundbreaking new development for gas detection. The MultiRAE Benzene is the industry’s first wireless portable six-gas monitor for low-level, benzene-specific, VOC and multigas gas detection. MultiRAE Benzene detects benzene from 0 to 200 ppm with 0.1ppm resolution by filtering out other VOCs and gases to eliminate cross-interference.

The MultiRae Benzene is the only gas monitor that includes up to 6 gas detection and real time wireless capability, plus benzene-specific measurement. The MultiRae Benzene monitor combines the ability to make quick benzene-specific assessment (snapshot) measurements with the advantages of a versatile multi gas monitor that can support approximately 20 intelligent interchangeable sensor options.

Its optional wireless capability improves safety by providing real time access to instrument readings and alarm status form any location, which delivers better situational awareness and faster incident response.

The MultiRae Benzene monitor’s unique features make it an ideal instrument for industrial applications, from confined space entry pre-screening during plant maintenance to personal protection, leak detection and refinery downstream monitoring.

Product Video Reviews


  • All in one tool with Benzene specific measurement in a hand held multi-gas instrument
  • Simplify Benzene response protocols – VOC detection, snapshot Benzene measurement
  • Eliminates cross interference: innovative RaeSep Tube Cartridge.
  • Wireless access to real time instrument reading and alarm status from any location
  • Unmistakable five way local and remote wireless notification of alarm conditions including Man Down Alarm
  • Up to 20 intelligent sensors store calibration data, so they can be swapped in the field
  • Continuous datalogging (up to 6 months for 5 sensors) and snapshot datalogging capabilities
  • Unique instrument for multiple applications
  • Highly versatile and customizable
  • Man Down Alarm with real time remote wireless notification
  • Benzene specific measurement up to 200 ppm with 0.1 ppm resolution
  • Fully automatic bump testing and calibration with AutoRae 2


  • Confined space entry pre-screening
  • Plant shutdown (downstream)
  • Personal protection
  • Leak detection

Instrument Specifications

MultiRae Detectors Protected catalytic bead for combustible gases
30 interchangeable electrochemical sensors for oxygen and toxic gases
Photo ionization detector for VOCs
Battery Options Rechargeable Li-ion
Extended Li-ion
4 x AA alkaline batteries
Operating Hours Rechargeable Li-ion: 12 hours pumped
Extended Li-ion: 18 hours pumped
Alkaline: 6 hours pumped
Display Monochrome graphic LCD, 128 x 160 display, automatic screen flip feature
Key Pads 3 operation and programming key (Mode, Y/+, N/-)
Attachment Durable red boot with belt clip and wrist strap
Direct Readout Real time reading of gas concentration, non-specific PID measurement, Man Down alarm on/off, visual compliance indicator, battery status, datalogging on/off, wireless on/off, and reception quality, STEL, TWA, peak and minimum values, Benzene-specific snapshot measurement
Alarms Wireless remote alarm notification, multi tone audible (95 dB @ 30cm), vibration, visible (flashing bright LEDs) and on screen indication of alarm conditions, Man Down Alarm with pre-alarm and real time wireless notification
Calibration Automatic with AutoRae 2 Test and Calibration System or manual
Datalogging Continuous datalogging (6 months for 5 sensors at 1 minute intervals), user configurable datalogging intervals from 1 to 3,600 seconds, snapshot datalogging
Communication & Data Download Data download and instrument set up and upgrades on PC via charging and PC comm cradle, travel charger or AutoRae 2 Calibration System, wireless data and alarm status transmission via built in RF modem (optional)
Wireless Network Real Time wireless safety system or EchoView Host based closed loop system
Wireless Frequency ISM license free band, IEEE 802.15.4 Sub 1 GHz
WiFi 802.11 b/g
Wireless Range MultiRae to RaeLink3 Mesh or RaeLink 3 Z1 Mesh Modem: 330 feet EchoView Host, Rae Mesh Reader or RaePoint: 660 feet
MultiRae to WiFi Acccess Point: 330 feet
Sampling Pump Built in, flow rate: 250 cc/min, auto shutoff in low flow conditions
IP Rating IP-65 pumped
Temperature -4° to 122°F
Humidity 0 to 95% relative humidity (non-condensing)
Intrinsic Safety CSA: Class I, Division I, Groups A, B, C, D, T4
Class II, Division I, Groups E, F, G, T85°C
Atex: CE 0575 ex II 2G Ex ia d IIC T4 Gb
IECEx: Ex ia d IIC T4 Gb
EMC/RFI EMC directive 2004/108/Ec
Radio Module Supports RM900A
Performance Tests LEL CSA C22.2 No 152; ISA-12.13.01
Warranty 2 years on non consumable components, catalytic LEL, CO, H2S, & O2 sensors 1 year on all other sensors, pump, battery & other parts, 6 months on PID Sensor
Size 7.6″ H x 3.8″ W x 2.6″ D
Weight 31 ounces

Sensor Specifications

Oxygen (O2)
0-30% Vol
Combustible, Catalytic
0-100% LEL
1% LEL
VOCs, 9.8 ev
0-2,000 ppm
0.1 ppm
Benzene-Specific 0-200 ppm 0.1 ppm
Ammonia (NH3) 0-100 ppm 1 ppm
Carbon Monoxide (CO)
0-500 ppm
1 ppm
0-2,000 ppm 10 ppm
Carbon Monoxide, H2 Compensated (CO) 0-2,000 ppm 10 PPM
Carbon Monoxide & H2S Combo CO: 0-500 ppm H2S: 0-200 ppm CO: 1 ppm H2S: 0.1 ppm
Chlorine (Cl2)
0-50 ppm
0.1 ppm
Chlorine Dioxide (ClO2)
0-1 ppm
0.03 ppm
Ethylene Oxide (ETO)
0-100 ppm
0.5 ppm
0-10 ppm 0.1 ppm
Formaldehyde (HCHO)
0-10 ppm
0.05 ppm
Hydrogen Cyanide (HCN)
0-50 ppm
0.5 ppm
Hydrogen Sulfide (H2S) 0-100 ppm 0.1 ppm
Methyl Mercaptan 0-10 ppm 0.1 ppm
Nitric Oxide (NO) 0-250 ppm 0.5 ppm
Nitrogen Dioxide (NO2) 0-20 ppm 0.1 ppm
Phosphine (PH3) 0-20 ppm 0.1 ppm
Sulfur Dioxide (SO2) 0-20 ppm 0.1 ppm

Ordering Information

Each MultiRae Benzene includes the following: sensors, pump, battery & wireless options as specified, rubber boot, belt clip, filters, datalogger, travel charger/pc communications adapter, AC adapter, calibration adapter, alkaline battery adapter, tool kit, PID sensor cap removal took, charcoal filters, quick start guide, 1 cartridge for benzene specific measurement, sample draw kit, calibration and test certificate and hard transport case. Optional calibration kit available. For pricing, please call AFC International at 1-800-952-3293, 219-987-6825 or fax 219-987-6826 or email

Catalog No.
MultiRae Benzene with pump, 9.8 eV PID, LEL, H2S, CO, O2 sensors, Li-ion Battery, Non-Wireless, Calibration Kit MCB3-A4C112E-023
MultiRae Benzene with pump, 9.8 eV PID, LEL, H2S, CO, O2 sensors, Li-Ion Battery, Wireless, Calibration Kit MCB3-A4C112E-423


The MultiRae external battery charger allows a MultiRae battery to be charged while it is not housed in the unit. This is ideal for anyone who runs their MultiRae’s 24/7 or on back to back shifts. Now a back up battery can be swapped in without subjecting the instrument to down time. This is a must have accessory. The external battery charger comes as a stand alone unit and requires a power power. An additional accessory is available to group 5 battery charges on a single plastic holder, all of which can be charged simultaneously using a spider charger.

The MultiColor boots for MultiRae allow for customization of the look of MultiRae units. This is especially convenient for customers who operate with several different configurations of MultiRaes. Instead of using labels, or other ways to differentiate MultiRaes, they can assign each instrument a color so that they ensure the right instrument is selected for a given task.

Catalog No.
External Battery Charger M01-3025-000
5 Bank Holder of Battery Charger M01-2110-000
Power Cord, Single 500-0036-102
Power Cord, 1-5 units 020-2480-000
Red Rubber Boot for MultiRae M01-2086-100
Orange Rubber Boot for MultiRae M01-2087-100
Blue Rubber Boot for MultiRae M01-2088-100
Replacement Benzene Tube Cartridge, pk/6 M01-0312-000


MultiRae Benezene literature

Product Literature

Table of Ionization Potentials

AP-000 PID Training Outline

TN-151 Electrohemical Sensor Replacement & Maintenance

AP-219 Using PIDS for 10% of LEL Decisions

AP-235 Measurement of PGMEA Using Photoionization Detectors

TN-124 PID Lamp Characteristics

TN-146 Turning on UV Lamps in a PID Monitor

AP-203 PIDs as a HazMat Response Tool

AP-211 PIDs for Continuous Monitoring of VOCs

AP-214 Environmental Applications for PIDS

AP-221 Using PIDs for Assessment of Exposure Risk in Unknown Environments

TN-206 – Extending the Life of LEL Sensors

TN-182 Basics of Wireless Security

TN-204 Modes & Applications of the MultiRae Benzene

NEW!! AP-236 Monitoring Benzene

MultiRae Benezene literature

Rae Systems SensorRae4R literature

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