The TESLA 4FP 153 27 industrial telephone is designed for reliable voice communications in industrial settings without the need for manual dialing. This model is widely used as an outdoor industrial telephone, a direct-dial dispatch telephone, and an element of emergency notification systems in energy, transportation, warehouse, and industrial infrastructure.

The device is used in fixed-line communication systems, including point-to-point and intercom systems, as well as in automatic connection systems when the handset is lifted. This makes it an ideal solution for process lines, security posts, checkpoints, pumping stations, and other areas where instant communication without dialing is essential.

The housing is made of impact-resistant material resistant to UV radiation, moisture, and aggressive environments. Its all-weather design and IP65–IP66 protection rating ensure reliable operation outdoors—in rain, snow, and dusty conditions. The design is optimized for long-term operation in harsh industrial conditions.

The model is adapted for operation in noisy environments. The telephone features a powerful ringer of up to 85–90 dB, making it ideal for use in workshops, production areas, and warehouses. Incoming call alerts can be activated if needed. Adjustable speaker volume ensures comfortable listening in high background noise conditions.

Connection is via analog telephone lines. Power is supplied directly from the line, eliminating the need for additional power supplies and simplifying installation. The device easily integrates into existing communication systems and control rooms.

An operating temperature range of -25°C to +60°C allows for use in a variety of climatic conditions. Minimal maintenance requirements and high reliability make this model an effective solution for remote and hard-to-reach locations. 

Key Features:

• Type: Industrial telephone (weatherproof, outdoor)

• Design: Without dialer

• Protection Rating: IP65–IP66

• Power: From telephone line

• Ringer Volume: Up to 85–90 dB

• Operating Temperature: -25…+60 °C

• Light Signaling: Optional

• Volume Control: Yes

• Housing Material: Shockproof, UV, and Moisture-Resistant

• Installation: Indoor/Outdoor

• Dimensions: ~245 × 225 × 129 mm

• Weight: ~3.0–3.5 kg