cctv wrist tester The cctv wrist tester is developed for the installation and maintenance of video monitoring system. cctv wrist tester SpecificationMODELSTest-890 CCTV Security TesterVideo TestSignal modeNTSC/PAL (Auto Adjust)Display2.5 inch TFT-LCD ,960 x 240 resolutionVideo IN/OUT1 channel BNC Input & 1 channel OutputVideo Output Mode1.0 Vp-pPTZ controllerCommunicationRS232, RS422 simplex and ...