As the telephone handset for gas&oil platform or sea port, corrosion resistance, waterproof grade and endurance to the hostile environment are very important factors when choose handsets. As a professional OEM in this filed, we took all the details into consideration from the original materials to internal structures, electrical components and external cables. For harsh environment, UL approved ABS material, Lexan anti-UV PC material and carbon loaded ABS material are available for different usages; With different kinds of speakers and microphones, the handsets could be matched with various motherboard to reach high sensitivity or noise reducing functions.To enhance the handset's waterproof rating, we have made structural changes compared to common handsets in the market. Additionally, we have added a sound permeable waterproof film on the speaker and microphone. With these measures, the waterproof rating reaches IP66, making it suitable for outdoor use.1.Options for the handset's cord include a default PVC curly cord with a standard length of 9 inches when retracted and 6 feet when extended. Customized lengths are also available. 2. Weather resistant PVC curly cord (Optional) 3. Hytrel curly cord (Optional) 4.Dfault SUS304 stainless steel armored cord.The standard armored cord length is 32 inches, with optional lengths of 10 inches, 12 inches, 18 inches, and 23 inches. The cord also includes a steel lanyard anchored to the telephone shell, with a matching steel rope of varying pull strength: - Dia: 1.6mm, 0.063”, Pull test load:170 kg, 375 lbs. - Dia: 2.0mm, 0.078”, Pull test load:250 kg, 551 lbs. - Dia: 2.5mm, 0.095”, Pull test load:450 kg, 992 lbs.This weatherproof handset is suitable for use in outdoor telephones located in various settings, such as highways, tunnels, pipe galleries, gas pipeline plants, docks and ports, chemical wharves, chemical plants, and more.

Item	Technical data
Waterproof Grade	IP65
Ambient Noise	≤60dB
Working Frequency	300~3400Hz
SLR	5~15dB
RLR	-7~2 dB
STMR	≥7dB
Working Temperature	Common:-20℃~+40℃ Special: -40℃~+50℃ (Please tell us your request in advance)
Relative Humidity	≤95%
Atmospheric Pressure	80~110Kpa

As a way to use the resource on the expanding info in international trade, we welcome prospects from everywhere on the web and offline. In spite on the high quality items we offer, effective and satisfying consultation service is supplied by our qualified after-sale service group. Item lists and detailed parameters and any other info weil be sent to you timely for the inquiries. So please make contact with us by sending us emails or call us when you've got any questions about our organization. ou could also get our address information from our site and come to our enterprise. We get a field survey of our merchandise. We are confident that we'll share mutual accomplishment and create solid co-operation relations with our companions within this market place. We're seeking forward for your inquiries.