Sea-Dog Round Red LED Temperature Meter The temperature meter includes a prewired temperature sensor with a 6-foot cable and it monitors temperature on a bright LED screen. Features: - Reverse polarity protected - The same compact round size as a standard 12VDC receptacle, this temperature meter supports many installation options - Constructed of injection-molded nylon - Installation is as easy as drilling a 1-1/8-in. hole, inserting the socket body, tightening the locking nut, and connecting the wires - IP67 waterproof rating - 12-24VDC Specifications: - Diameter: 1-7/16 in. - Length: 1-1/16 in. - Height: 1-1/8 in. - Volts: 12-24 - Temperature Range (Fahrenheit): -67 degrees to 248 degrees - Weight: .02 lb.