Extech BR200-EXT Extension cable for BR100/BR200/BR250 Video Borescopes  is a 37" (0.95m) Cable used for increasing viewing distance with a 19mm diameter connector.

Extech BR250 Video Borescope/Wireless Inspection Camera has a 9mm camera diameter and 3.5" colour TFT LCD Wireless Monitor  with a detachable wireless colour display that can be viewed from a remote location up to 32ft (10m) from measurement point.

Extech HDV610 HD VideoScope with 5.5mm Flexible Probe is a varient of Extech's HDV600 series of High Definition VideoScope Inspection Cameras with 60° FOV, Macro Probe (1m) and an optional wireless transmitter (HDV-WTX) that connects to your camera cable and allows you to transmit video up to 100ft (30m) from the measurement point to your monitor 

Extech HDV620 HD VideoScope with 5.8mm Semi-Rigid Probe is a varient of Extech's HDV600 series of High Definition VideoScope Inspection Cameras with 60° FOV, Macro Probe (1m)  and an an optional wireless transmitter (HDVWTX) that connects to your camera cable and allows you to transmit video up to 100ft (30m) from the measurement point to your monitor

Extech HDV640 HD VideoScope with Handset/Articulating Probe is a varient of Extech's HDV600 series of High Definition VideoScope Inspection Cameras with 6mm semi-rigid articulating (320°) probe (1m)  with the video and images being transferred to a PC via the SD card or USB output