TOA Electronics RS-150 Indoor Substation with Speaker and Call Button

The TOA RS-150 is a high-quality call station featuring a built-in 4 cm cone-type speaker and a momentary call button, designed for dependable communication in commercial, industrial, and institutional settings. Its robust construction with a stainless steel hairline panel and durable resin call button ensures long-lasting performance and high visibility, making it ideal for signaling in high-traffic areas or critical communication points.

Equipped with a two-core shielded cable, the RS-150 provides interference-free audio transmission over long distances. Depending on the cable gauge, the unit supports transmission ranges from 0.5 km (546 yd) to 1.3 km (1421 yd), delivering clear, reliable communication even in electrically noisy environments. The integrated speaker provides a rated input of 1 W with a rated impedance of 625 Ω, ensuring audible messages are transmitted clearly.

Designed to operate in a wide temperature range from -10 °C to +50 °C, the RS-150 is capable of maintaining reliable performance under various indoor conditions, as long as the speaker and switch are not frozen. Compact and easy to mount, this call station is a professional solution for offices, factories, hospitals, schools, or other facilities requiring high-quality, dependable audio signaling.

Key Features

• Call station with built-in 4 cm cone-type speaker
• Durable stainless steel hairline panel with resin call button
• Supports long-distance transmission up to 1.3 km (1421 yd) depending on cable gauge
• Two-core shielded cable for interference-free operation
• Rated input: 1 W; Rated impedance: 625 Ω (1 W / 25 V)
• Wide operating temperature: -10 °C to +50 °C (14 °F to 122 °F)
• Compact design for easy mounting

Technical Specifications

Rated Input: 1 W
Rated Impedance: 625 Ω (1 W / 25 V)
Internal Speaker: 4 cm cone-type
Wiring: Two-core shielded cable
Transmission Range: 0.5 km / 546 yd (Ø0.5 mm, AWG24), 0.8 km / 874 yd (Ø0.65 mm, AWG22), 1.3 km / 1421 yd (Ø0.9 mm, AWG19)
Operating Temperature: -10 °C to +50 °C (14 °F to 122 °F; temperature range not to freeze the speaker and switch)
Finish: Panel: Stainless steel, hairline; Call button: Resin
Dimensions: 4.72" x 4.72" x 1.91" (W x H x D)
Weight: 0.90 lb (410 g)