Model: CM-21A

Automatic Gas Alarm

Special Features:

Cm-21a activates fan relay at 35 ppm of co averaged over 5 minutes. (25 ppm is selectable) alarm relay will be activated at 100 ppm of co after 30 mintutes or 200 ppm after 10 minutes. 5 amp spdt fan relay controls starters of exhaust fans. A 0.5 amp n.O. Alarm relay connects to warning devices or control panels.

Properties:

Cubic Measure
38.250 cubic inches
Usage Design
Industrial
Specific Usage Design
Designed for co detection and automated exhaust fan control in automotive maintenance facilites, enclosed parking garages, warehouses with forklifts, etc.
Indicator Type
Red light and horn
Design Type
Nontripod mounting
Media Detected
Carbon monoxide
Part Name Assigned By Controlling Agency
Carbon monoxide detector and controller
Supplementary Features
Dimentions are 4.5 x 4 x 2.125 inches. Item should be mounted 4 to 5 feet above floor level.
NSN
6665-01-530-2725
Part Number
CM-21A
Description
Alarm,gas,automatic
CAGE
76381

A device which detects the presence of hazardous gases or vapors, toxic explosives, and/or sounds an alarm, and/or lights or flashes lights of distinctive color when the concentration reaches a dangerous level. Excludes alarm, chemical agent, automatic.

Part CM-21A NSN 6665-01-530-2725

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
28625
FIIG:
T394-A
Concept No.:
App. Key:
AA
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
--
WCC:
652
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Phone: +1 470-231-0824
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Schedule B and Export
  • Schedule B: 9027505000
  • SITC: 87445
  • End Use: Laboratory testing instruments
  • NAICS: 334516
  • USDA: 1

Freight Class: Other chemical analysis instruments and apparatus, nesoi

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