Blood type patch 0 negative in excellent quality.On the back, it has a Velcro fastening to the opposite side - velcro panel on ID. The patch is infrared, so it is visible only by night vision apparatus.It is excellent in twilight or dark, evening or night, or in poor visibility.It is a perfect complement to equipment designed to quickly identify fellow soldiers (IFF - identification friend or foe).The company Combat Systems is meeting the great demand from professionals for improved ACR distinguishing features by developing its own product, which is moving this very important equipment accessory up several quality classes.The IR distinguishing features of this Czech company represent the best that current technologies offer.
The basis IR of the distinguishing feature is made up of a non-combustible and very durable matt material, which reflects light of wavelength in the band in which the vast majority of IR-powered night-vision devices used in NATO armies operate.Unlike others in the market for available technologies, Combat Systems uses special processing technology.In particular, the much longer life span of the patch stands out as well as the completely eliminated peeling of the cover sheet, as is sometimes the case with competing products, leading to irreversible damage to the patch.The patch can be used in the very large temperature range from -40 °C to 90 °C and so is also suitable for safe transport in unheated cargo areas, especially in military aircraft where there are large temperature fluctuations depending on altitude.All materials used are manufactured in the EU or the US according to applicable standards and regulations.