Product Features  •  Reduced handset cord length •  Armored handset cord withstands vandalism and     severe use •  Faceplate secured with vandal resistant screws •  Vandal resistant metal keypad, standard     3 x 4 matrix •  High impact ABS handset with lock on caps •  16 AWG steel, zinc dichromate plated and     powder coated •  Surge arrestor and fuse prevents damage to    the electronic circuits in the event of a high     voltage spike on the phone line •  Noise reducing microphone aids in clarity of    transmission in noisy areas •  Factory set to tone (DTMF) dialing •  Pulse dialing can be ordered or configured in    the field •  Temperature range -76° to +176°F     (-60° to +80°C)  •  Hearing aid compatible with inductively coupled    hearing-aid devices     SAILO双向无线电话（含充电器）SP3520 丹麦SAILO双向无线电话（含充电器）SP3520 丹麦水手SAILO双向无线电话SP3520 SAILO的双向无线电话SP3520原装 SAILO双向无线电话SP3520整套设备 Akron board PC for 3465 12 VOLT电脑板 3721多功能消防水枪 Akron 3721多功能消防水枪 阿密龙Akron3721型多功能消防水枪 3367型电控消防水/泡沫两用炮 阿密龙3367型电控消防水/泡沫两用炮 akron阿密龙3367型电控消防水/泡沫两用炮 akron阿密龙3367型消防炮 阿密龙3367型泡沫两用消防炮