Knee Immobilizer Universal 3 Panel 16 Long Golf Tennis Elbow Supports Ultrasonic Pocket Doppler * Easy HERH6036TW Ultrasonic Pocket Doppler * Easy to use * Compact design * Interchangeable waterproof probe (sold separately) * Built in audio recorder * Large backlight LCD display * Accurate FHR detection with high fidelity sound effect * Support waterproof probes for both obstetrical and vascular usage * Auto Average and Manual working modes * Various power supply solutions * Automatic power off to save power * 9V alkaline battery Features an adjustment screw to customize rail angle to suit even the steepest stairs * Easily folds up to store out of the way and will not accidentally fall down causing an impace injuty * A machined precision tension fit hinge creates stable rock solid support * An excellent support option for sunken living rooms decks patios or 2 and 3 step stairs in garages * The P Bell Horn's 3 panel Knee Immobilizers are designed for easy adjustment and correct fit * Doctor recommended for light support of minor strains and sprains * Easily applied * Back gusset included * Patella strap for correct fit * Used for immobilization of the knee joint following surgical or non surgical correction of bone ligament injury or muscle damage to the knee * Suggested HCPCS Code: L1830 *