Industrial Scientific is pleased to offer the M40, a versatile multi-gas monitor capable of detecting Carbon Monoxide (CO), Oxygen (O2), and combustible gases (LEL) 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 five-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, 50 hour datalogging capacity, and belt clip. An optional compact parasitic sampling pump enables remote sampling from up to 50 feet away.

Note: Sold in continental US only.

Features:

• Monitoring for Oxygen (O2), Carbon Monoxide (CO) & combustible gases (LEL)
• Calibrated to NIST standards
• 18-hour runtime with lithium-ion battery
• Includes vibrating, 90dB audible, and LED visual alarms

Spec Summary:

DIMENSIONS:	4.30"h x 2.45"w x 1.37"d (10.9cm x 6.22cm x 3.48cm)
WEIGHT:	8.6 ounces (244 g) Weight with pump: 11.6 ounces (326 g)
SENSORS:	The M40 is available in a 2, 3, or 4-gas configuration including oxygen (O2), hydrogen sulfide (H2S), carbon monoxide (CO), and combustibles (LEL) /hydrocarbons
MEASURING RANGES:	CO range: 0-999 ppm in 1 ppm increments Oxygen (O2) range: 0-30% volume in 0.1% increments Combustibles: 0-100% LEL in 0.1% increments The M40 features LEL over-range protection
POWER SOURCE:	Lithium-ion battery (can be charged in instrument)
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 50 hours of datalogging capability
TEMPERATURE RANGE:	-4º to 122ºF (-20º to 50ºC)
HUMIDITY RANGE:	15 to 95% RH, typical, 0 to 99% RH intermittent (non-condensing)
APPROVALS:	UL approved - Class I, Group A, B, C, D CSA (pending) - Class I, Group A, B, C, D Cenelec (ATEX) and Australia - EEx ia IIc T4 (pending)

Note: Industrial Scientific products can only be sold in North America only.