HCTEK4321 rugged transit case provides travel and storage protection for TDS3000, TPS2000, TDS2000, TDS1000, and TDS200 series oscilloscopes. The case protects instruments from shock, vibration, and moisture, and provides room for accessories, such as probes, adapters, and manuals. Includes an air pressure equalization control valve for use during air transport and security rings for use with locks (locks not supplied).