PSST Technology(HongKong) CO., LTD.
Clean Room Service Telephone
Clean Room Service Telephone

Clean Room Service Telephone

The advantage of clean room service telephone PT-S-MT9

PT-S-MT9 cleanroom sevice emergency telephone using the latest technical design, the stainless steel shell by laser cutting to ensure no gaps surface, no bulge of the installation. and the installation is simple, without power, connected the telephone line directly then it will be working, the phone has greatly improved the quality of call, the motherboard is stable, using the latest Austria voice chip, the main control chipset is the USA ATMEL company industrial grade microcontroller, to ensure stable work in the harsh environments.

It's 304 stainless steel keypad can withstand the long-term corrosion of the liquid medicine, high-sensitivity microphone when incoming call can have broadcasting, one call button for handsfree model, the other one for emergency call ,self automatically stop if the other side hang up.
  • Overview
  • Specifications
  • Drawings

Main features of clean room sterile telephone PT-S-MT9

  • Wall-mounted installation, simple to maintain
  • Waterproof grade IP65-IP66
  • 304 stainless steel housing and keypad, vandal resistance, anti-corrosion
  • Full clear and loud sound for broadcasting
  • One call button for the handsfree model, the other one for emergency call model
  • Programming auto dial and auto answer function
  • Line powered or external 6-12V power supply
  • Build in Microcomputer control chip made it smarter
  • Microphone sensitivity can be adjusted
  • Volume can be adjusted

Applications of clean room sterile telephone PT-S-MT9

Widely used in the place of waterproof, dustproof such as laboratories, pharmaceutical factory, dust-free workshop, aseptic workshop, hotel bathroom ...etc.

Package of clean room sterile telephone PT-S-MT9

phone size: 250*150*50mm
Packaging material: PE EPE bag, carton
Net weight: 1.5KG
Gross weight: 2 KG


  • OEM/ODM services are available
  • Normal use, nonhuman damage, one year warranty

Specification of clean room service telephone PT-S-MT9

DTMF dialing parameters
  • Low frequency group frequency:697.770.852.941HZ
  • High frequency group frequency: 1209.1336.1477HZ
  • Frequency deviation: ≤ 1.5%
  • Low frequency group level: -9 + 3dB
  • High frequency group level: -7 + 3dB
  • Level difference : 2 + 1dB
  • Harmonic total distortion at least low 20dB than the fundamental level
Ringing tone decibel
  • 70dB
Speaker decibel
  • 90dB (external power supply)
Phone impedance
  • 600 Ω
  • EEPROM (power off without loss data)
  • RJ11 or 2P terminal
Parameter setting 
  • by keyboard DTMF dial set
  • excess of 50,000 hours using
Busy tone
  • 300~450HZ, interval between 300-500ms
  • 24-60v
Working environment
  • Operating  Temperature: 30°C to +65°C 

  • Storing Temperature: 40°C to +75°C 

Accessories material 
  • Button: Stainless steel
  • Keypad: Stainless steel 
  • Housing: Stainless steel 
  • Color: yellow red grey can be tailored
  • Logo, slogan can be tailored
  • With keypad or without keypad 
  • VoIP GSM Analog protocols can be tailored

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  • TEL:+86-755-89487736
  • FAX:0755-33671258
  • ADDRESS:NO. 20, Phoenix No. 1 Zone Industry, Fuyong Street, Bao'an District, Shenzhen City
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