Developed by the Combat Training Solutions division of Cyalume Technologies, the HG1 is a programmable hand grenade simulator. It gives immediate feedback through direct impact training.
After programming the HG1 for 3 second, 5 second or random detonation, it is configured with a charge that provides both audible (140db @5 ft) and visible (smoke) signatures.
Additionally, it can be used over and over and is easily recovered from the training area thanks to a light and sound report.
They also now have a MILES compatible version that talks directly to your harness to signify both near miss and kill.
The HG1 is already in use with NSW and USMC elements.
Tags: AUSA, Cyalume Technologies
Is it a DD?
I don’t think so, just expensive. You can have the same audible signature using some airsoft grenades.