What is used to detect nerve agents?

The correct answer encompasses all the listed options, each of which plays a distinct and important role in detecting nerve agents.

The M256A1 is a chemical agent detector that allows for the identification of various chemical agents, including nerve agents, through colorimetric changes. When a sample is placed on the M256A1, specific reactions indicate the presence of certain agents, providing immediate results that are essential for field operations.

The M8 and M9 paper are both types of chemical detection paper. M8 paper is designed to detect liquid chemical agents, providing color change indicators for various nerve agents. M9 tape, on the other hand, is used to spot the presence of chemical agents by changing color upon contact with these substances, acting as a quick and easy field surveillance tool.

The M8A1 Alarm serves as an automatic detection system for chemical agents, including nerve agents. It continuously monitors the environment and can emit an alarm if it detects the presence of harmful chemicals, providing an essential early warning in combat or hazardous situations.

This comprehensive range of detection methods ensures that military personnel are equipped to identify and respond to nerve agent threats effectively, relying on both manual and automatic systems for maximum safety and operational readiness.