Geneq > Environment > Gas Detectors

Multi-Gas Detector
Model M40


Industrial Scientific is pleased to offer the M40, a versatile multi-gas monitor capable of detecting CO, H2S, O2, and combustible gases for a wide variety of hazardous and confined space applications.
The M40 is housed in a rugged, impact-resistant case to provide superior performance and durability in harsh environments and resistance to radio-frequency and electromagnetic interference. Its four-button interface provides simple, intuitive operation and calibration, and the M40’s fi ve-second “Off” feature prevents unintentional shut-offs. The unit’s compact size and economical price make it an ideal personal monitoring instrument.
Other standard features include a vibrating alarm, lithium-ion battery, peak/hold readings, large LCD, 75 hour datalogging capacity, and belt clip. An optional compact parasitic sampling pump enables remote sampling from up to 50 feet away. The M40 carries a two-year warranty.

Features
  • 1 to 4 gas monitoring for O2, H2S, CO& combustible gases
  • 18-hour runtime with lithium-ion battery
  • Includes vibrating, 90 dB audible, and LED visual alarms
  • Two-year, all inclusive warranty

Specification
Case:
High-visibility,impact resistant composite – RFI, EMI and ingress protection tested and approved
Dimensions:
10.9 cm x 6.22 cm x 3.48 cm (4.30″h x 2.45″w x 1.37″d )
Weight:
244 g ( 8.6 ounces) Weight with pump: 326 g (11.6 ounces)
Sensors:
Combustible Gases – Catalytic Diffusion
Oxygen and Toxic Gases – Electrochemical
Measuring Ranges:
Combustibles – 0 to 100% LEL in 1% increments
Methane – 0 to 5% of volume in 0.1% increments (M40•M only)
Oxygen – 0 to 30% of volume in 0.1% increments
Carbon Monoxide – 0 to 999 ppm in 1 ppm increments
Hydrogen Sulfi de – 0 to 500 ppm in 1 ppm increments
The M40 features LEL over-range protection
Power Source:
Rechargeable lithium-ion integral battery
Runtime:
18 hour – instrument (non-alarm)
12 hour – instrument with pump (non-alarm)
Display:
Large LCD provides simultaneous and continuous readout of up to all four gases. Large, high-contrast characters, graphic icons and unique amber backlight provide clear display visibility in low-light conditions.
Alarms:
Vibrating, 90 dB audible and ultra-bright LED visual alarms. High/low, STEL, TWA and low battery alarms. Flow alarm indicator when used with optional SP40 pump.
Datalogging:
Up to 75 hours of datalogging capability
Temperature Range:
-20º to 50ºC (-4º to 122ºF)
Humidity Range:
15 to 95% RH, typical, 0 to 99% RH intermittent (non-condensing)
IP Rating:
IP65
Approvals:
UL– Class I, Groups A,B,C,D T4; Class I, Zone 0, AEx ia d IIC T4
CSA – Class I, Groups A,B,C,D T4
MSHA (M40•M only) – Intrinsically safe for Methane/Air mixtures only
ATEX – EEx ia d IIC T4 Equipment Group and Category II 2G
Australia – Ex ia s Zone 0 IIC T4
Russia – GOST R

PART NUMBER DESCRIPTION
18105437-01111* M40 – Four gas configuration for O2, LEL, CO, H2S
18105437-01110* M40 – Three gas configuration for O2, LEL, H2S
18105437-01101*

M40 – Three gas configuration for O2, LEL, CO

18105437-00110* M40 – Two gas confIguration for H2S, LEL
18105437-01100* M40 – Two gas configuration for O2, LEL
18105437-00100* M40 – Combustible gas confi guration for LEL only
18105437-11111+ M40 and Pump Combination for O2, LEL, CO, H2S
18105437-11110+ M40 and Pump Combination for O2, LEL, H2S
18105437-11101+ M40 and Pump Combination for O2, LEL, CO
18105437-11100+ M40 and Pump Combination for O2, LEL
18105437-10100+ M40 and Pump Combination for LEL
M40-KIT-11111** M40 Confined Space Kit (with Pump) – O2, LEL, CO, H2S
M40-KIT-11101** M40 Confined Space Kit (with Pump) – O2, LEL, CO
M40-KIT-11110** M40 Confined Space Kit (with Pump) – O2, LEL, H2S
18105973-ABX++ M•Cal406™ – Six-Unit Calibration Station
18105965-10X++ M•Cal401™ – Single-Unit Calibration Station (with M40 Bay)
18105965-01X++ M•Cal401™ – Single-Unit Calibration Station (with M40/SP40 Bay)
18105460 SP40 Sampling Pump
18106062 M40 Constant-Flow Hand Aspirated Pump
18105528 M40 Datalink
18105478 M40 Nylon Carrying Case
18105486 M40/SP40 Combination Carrying Case
18106393 Single Unit Compact Charger, Universal
18105502 Single Unit Automotive Charger, 12 VDC
18105510 Six-Unit Charger
18106229-1 M40 Truck-Mount Charger, (hard-wired)
18106229-2 M40/SP40 Truck-Mount Charger, 12V
18106237-1 M40 Truck-Mount Charger, (hard-wired)
18106237-2 M40/SP40 Truck-Mount Charger, (hard-wired)
17092941 Metal Belt Clip
17107582 Suspender Clip
18106070 CO Breath Sampler for M40