Model Number: SC-R (A4-NE); Specifications: Cordless type; Nurse call shape: iPhone 4PE; Sensor material: PVC (Polyvinyl chloride resin); Size: Sensor: 31.5 x 11.8 x 0.2 inches (800 x 300 x 4 mm); Wireless relay box: 2.6 x 3.4 inches (65 x 60 mm); Splashproof design; Power supply: Wireless interruption box/DC5 x 6 x 6 mm). 1 x Button Battery (Test included); Relay Contact Output: 0.5 seconds; Maximum Number of Sensors Setup: 5 channels; Cable Length: Approx. 4.9 ft (1.2 m); Transmission Distance: Approx. 324 MHz; Frequency: 314 MHz; Includes a pause button; Includes mounting hook