1.Immunity to noise and interference 2.Power Transmit Function (100m) 3. ... &W (MAX)2, Power transmit Function (100m)3, Immunity to noise and interference4, Passive device5, Compact design Technical SpecificationModel NT-621Environment Close ... . Storage: -20 to 85 C. Humidity: up to 95% 1ch Passive Video Transmit Balun NT-621