These are System Sensor R-20E Multi-Voltage Relay Boxes. Comes with instructions and specifications. Has LED view hole in cover. What you see is what you get.
*The first two sold with come with the original box while the last two sold do not have an original box.
If you have any questions, ask before you buy. Thank you for looking.
Operating Voltage: 18-35VDC, 18-35VAC, 115VAC, 230VAC
B2-2