Fluke 233 Remote Display Multimeter Removable magnetic display can be conveniently mounted where it is easily seen Built in thermometer conveniently allows you to take temperature readings without having to carry a separate instrument Battery life: 400 hours True-rms AC voltage and current for accurate measurements on non-linear signals Low power wireless technology allows the display to be carried up to 10 meters (33 feet) away from the point of measurement for added flexibility Removable magnetic display can be conveniently mounted where it is easily seen Built in thermometer conveniently allows you to take temperature readings without having to carry a separate instrument Battery life: 400 hours