The newton cvr640 video recorder model 17044 is a compact and lightweight electronic unit designed to record the image produced by digital night vision devices with a video out the cvr640 can be used with models such as the yukon rangerranger pro newton hornet and pulsar recon series the cvr640 also enables conversion of an analogue signal to a digital the unit runs on three aaa batteries not included and since it has no built in lcd screen the cvr640 offers an extended operating time