IR Illuminator DNT M21 850 nm for Zulus HD & TNC225R

This DNT M21 IR illuminator is the 850 nm infra-red module for the TNC225R thermal imaging device and Zulus HD night vision devices, except the (V2) 5-20x LRF version. It can be used as a spare, or as a replacement, as the other wavelength may be preferred:

• 850 nm wavelength: great reach, but emits a subtle glow, which may be visible to some animals
• 940 nm wavelength: completely invisible, but has a shorter reach

Please note: this DNT M21 850 nm IR illuminator does not fit on the ZULUS HD (V2) 5-20x LRF.