Guardian电话机WRT-10-H  Description Guardian's WRT-10-H Hazardous Area Phones are designed for use in Class I, Division 2 hazardous areas. Renowned for safety and durability, from the phone's electronics to their sturdy enclosure constructed of engineering polymer. WRT-10-H models are built for demanding applications where reliability is essential. Product Features • Teleseal Keypad/Curly Cord/Heavy Duty Handset • Magnetic reed hook switch to reduce parts subject    to wear • Encapsulated circuitry impervious to water    and particles • Nylon hinge to prevent jamming caused by salt    or corrosion  • Spring-loaded door for automatic closure  • Surge arrestor to prevent voltage spike damage • Heavy duty industrial handset • Volume control to ensure communication in    noisy environments • Electret noise reducing microphone for clear    communication • Service temperature range from -40˚ to +140˚F    ( -40˚ to +60˚C ) • Waterproof connections & stainless steel fittings for    longer life • Compact durable enclosure with mounting plate for    easy mounting • Modular parts for easy service • Hearing aid compatible • Electronic ringer for reliability • Yellow enclosure for high visibility. Optional Grey    enclosure and other custom options available • Weather, dust & corrosion resistant • Tone or pulse dialing for universal configuration • Easily connected to any single line analog CO or    PABX telephone line • Powder coated, corrosion protected steel faceplate • Front access plate for ease of hook-up   F 3334 98  4channel safety-related output module, 48 W, SIL 3/Cat.4 with line monitoring HIMA4通道安全输出模块F 3334 HIMA黑马安全输出模块F 3334 德国HIMA黑马通讯模块 F8627X   HIMA黑马4通道数字输出模块F3335 JAHNS同步分流马达MTL-3/42-EA 阿美特克金属过滤器型号74422SE 阿美特克氧量加热棒  73052te AMETEK氧量加热棒  73052te 氧量加热棒  73052te  AMETEK陶瓷锆头过滤器  74422se AMETEK氧化锆传感器71785se 过滤器72346se AMETEK氧化锆过滤器72346se   Hydrotechnik 传感器C3.37 (0-20MPA)LEWIS安全尾绳TR-14-D-PC  lewis井架工安全尾绳TR-14-D-PC LEWIS\LSG 1－2"\电缆尾绳 1 1/4"～2"\LEWIS\LSG 1－2"CABLE SNAKE LEWIS井架安全带FAH－3－2－MB LEWIS MANF CO\FAH－3－2－MB