Friend Electronic Myanmar

Call Button	Momentary (Emergency call: Press twice within 400 ms.)
Rated Input	1 W
Internal Speaker	cone-type
Internal Mic	Electret condenser type
Wiring	Twisted pair cables (2-pair)
Transmission Range	1 km (1093 yd)/φ0.5 mm (AWG24) 1.5 km (1640 yd)/φ0.65 mm (AWG22) 2 km (2187 yd)/φ0.9 mm (AWG19)
Operating Temperature	-10 ℃ to +50 ℃ (14 ゜F to 122 ゜F) (Temperature range not to freeze the speaker and switch)

Finish	Panel: Stainless steel, hairline Call Button: Resin, black
Dimensions	120 (W) × 120 (H) × 41.5 (D) mm (4.72″ × 4.72″ × 1.63″)
Weight	510 g (1.12 lb)
Accessory	Box mounting screw (No.6-32UNC × 18) ……4, Box mounting screw (M4 × 25) ……4
Applicable Box	For flush-mount: 2-gang electrical box YC-302 (option) For surface-mount: Indoor wall-mount box YC-822 (option)

RS-450