The Lev-o-gage HL is an inclinometer designed specifically for hospital beds. It should be mounted to the bed on the patient's LEFT side and displays a range of +60 to -5 angular degrees. The engraved and hand painted numerals and hashmarks are extremely durable. It features a high-visibility Saturn Yellow tube assembly with special damping fluid that works down to -20 degrees F/-30 degrees C. 3M brand VHB (Very High Bond) adhesive foam tape is included on the back for easy mounting.