The detachable 940nm (nano meter) IR bulb enables you to reduce your IR footprint, emitting a less visible IR light. This is best for close to medium-range applications that prioritize stealth over brightness.
Please note that the IR module only fits the Zulu with rangefinder (ZHD312R or ZHD520R) or the ThermNight with rangefinder (TNC225R)
The IR Module M24 is compatible with the ZHD520R-V2, ZHD312R-V2, TNC335R and TNC635R models