CHEMICAL AGENT DETECTION AND ALARM SYSTEM
An M43 Detector Unit (1), an M42 Alarm Unit (2) and an M229 Refill Kit (3) provide
advance warning of chemical agents in the air.
Operation and Maintenance
For general operating and maintenance instructions, refer to TM 3-6665-225-12, Op-
erator's and Organizational Maintenance Manual, Automatic: Portable Chemical