The Extech HDV600 has various optional camera probes to fit your application needs. Choose from a range of sizes with articulating and/or wireless features. Waterproof (IP67) Videoscope features a 5.7 in. color LCD TFT with high definition 640 x 480 resolution. The SD memory card included stores more than 14,600 images. Video recording (up to 4 hours) with voice annotation. AV output for viewing images and video directly on a monitor. Video and images can be transferred to a PC via the SD card or USB output. Optional wireless transmitter allows you to transmit video up to 100ft (30 m) from the measurement point to your monitor.