Hand Free Intercom Clean Room Telephone JWAT403
The JWAT403 clean room telephone ensures reliable hands-free communication over analog or VOIP lines, ideal for sterile environments such as clean rooms and laboratories. Its seamless, gap-free surface and low-profile design reduce contamination risks. Constructed from corrosion-resistant SUS304 stainless steel, it is easy to decontaminate with standard detergents. The rear cable entry protects against damage. Available in versions with or without keypad, additional function buttons, and customizable colors. All components are self-manufactured and customizable for specific needs.
Flexible System Integration – Can form an independent telephone communication system using program-controlled switches and couplers, or connect directly to the telecommunications network.
Reliable Operation – Each phone acts as an independent station; a malfunction in one unit does not affect the overall system.
Automatic Gain Control – Maintains consistent voice clarity regardless of distance or number of connected phones.
Stable Circuit Design – Integrated circuits with internationally recognized double-sided design ensure clear calls, stable operation, and long-term reliability.
Durable Construction – Stainless steel housing provides high mechanical strength and impact resistance.
Hygienic Buttons – Flat, smooth stainless steel keys are resistant to acids, alkalis, and chemicals, allowing safe cleaning with standard disinfectants.
Hands-Free Design – Reduces cross-contamination; built-in anti-interference circuits ensure stable, clear audio.
Adjustable Volume – User-adjustable audio volume for optimal clarity.
Automatic Line Management – The phone automatically hangs up when the line is busy.
Instruction Card Holder – Convenient front panel area for placing operational instructions.
| Item | Technical data |
| Power Supply | Telephone Line Powered |
| Voltage | DC48V |
| Standby Work Current | ≤1mA |
| Frequency Response | 250~3000 Hz |
| Ringer Volume | >85dB(A) |
| Corrosion Grade | WF2 |
| Ambient Temperature | -40~+70℃ |
| Anti-Vandalism Level | IK9 |
| Atmospheric Pressure | 80~110KPa |
| Weight | 2.5kg |
| Relative Humidity | ≤95% |
| Installation | Wall mounted |

Each telephone is carefully packed in high-strength, impact-resistant packaging to ensure safe delivery. The boxes feature clear, durable labeling for easy identification and handling. For clients with specific requirements, we offer both standard protective packaging and custom/OEM packaging solutions, providing maximum flexibility and protection.
| Unit size | 133×237×43.5 (mm) |
| Carton size | 330*150*150 (mm) |
| Packaging materials | Pearl cotton, Carton |
| Net weight | 2.5 KG |
| Gross weight | 3 KG |

This clean room telephone is designed for use in clean rooms, laboratories, hospital isolation areas, sterile environments, and other restricted or controlled settings. Its robust and hygienic design also makes it suitable for a wide range of public and commercial spaces, including elevators, parking lots, prisons, railway and metro platforms, hospitals, police stations, ATMs, stadiums, campuses, shopping malls, doors, hotels, and exterior building installations.

The JWAT403 intercom and emergency clean room telephone system provides a complete communication solution for sterile, restricted, and high-security environments. The system can be deployed as a standalone network or integrated into existing telecommunication infrastructure, offering flexible scalability for small, medium, or large facilities.
Each unit operates as an independent station, ensuring that the malfunction of a single phone does not affect the overall system. The system supports automatic gain control, maintaining consistent voice clarity regardless of distance or the number of connected devices. Its anti-interference circuitry ensures reliable, clear communication even in electrically noisy environments.
The system is designed with hygiene and durability in mind: stainless steel housings resist impact, chemical corrosion, and repeated cleaning with disinfectants, while the hands-free design reduces cross-contamination risks.
Ideal for clean rooms, laboratories, hospitals, public facilities, and commercial environments, this system solution provides reliable, safe, and high-quality communication, enhancing operational efficiency and safety in critical settings.




