Check the listing for details. TEKTONE SF-151N NURSE CALL EQUIPMENT. Condition: New – Open box, Made in United States. Listed at 75.00 USD. The Tektone SF-151N Nurse Call Equipment is a patient station designed for use in healthcare settings. Made by the brand Tektone in the United States, this model is specifically tailored to meet the needs of medical professionals. With its reliable and durable construction, this nurse call equipment provides a convenient and efficient way to communicate and assist patients in a medical environment.