970.51: Master Talk, Call, Release, Standard, Stainless

To improve customer experience and monitor performance, this website uses Folknoll Group and third‑party cookies. By continuing to use this website, you accept this practice.


  • Intercom master station with lock release
  • Integral speaker and microphone
  • High audio output (up to 80dB)
  • Large vandal resistant TALK/LISTEN button (push‑to‑talk)
  • Large vandal resistant CALL/CANCEL button, with integral call status LED
  • Large vandal resistant LOCK RELEASE button (to unlock door)
  • ANTI‑LIGATURE design, SAFER CELL compatible
  • Tough, vandal resistant, brushed finish, stainless steel plate
  • Black silk screened annotation
  • Mild steel, flush or surface back box, please specify when ordering
  • Anti‑tamper fixings available on request
  • Suitable for custody suites, seclusion rooms, etc.

Our Intercom Series 9 Range

Our NOMS compliant series 9 intercom system is specially developed for use in tough custodial environments. Most units have stainless steel front panels, flush mount back boxes and ANTI‑TAMPER fixings. Ideal for Police, MoJ, HM Prison Service, secure hospitals and similar establishments. Many units also benefit from safer cell compatible ANTI‑LIGATURE design, making the system suitable for custody suites, seclusion rooms, etc. For even more extreme locations, we offer units with super‑flush back boxes for mounting in ANTI‑PICK adhesive.

Master Talk, Call, Release, Standard, Stainless

Our 970.51 is a vandal resistant, stainless steel, push‑to‑talk, series 9 intercom master station, with lock release feature.

Push‑to‑talk enables the operator to control the audio direction, reducing the possibility of operators being accidentally overheard and preventing the user from overriding the conversation.

The additional lock release button enables the operator to control access to the room.

The speaker volume and microphone gain are adjustable to suit the operating environment, with a maximum output of 80dB.

The standard unit is annotated in black with the words TALK/LISTEN, CALL/CANCEL and LOCK RELEASE. Alternative annotation is available on request.


Talk button
Large, vandal resistant, push button
Cancel button
Large, vandal resistant, push button
Release button
Large, vandal resistant, push button
Progress indicator
Separate LED, red
Audio output
Adjustable (max: 80dB)
Line powered
Front plate
Stainless steel (304/1.4301), brushed finish
Black silk screened
Plate dimensions
Width: 130mm, height: 190mm, depth: < 50mm (approx.)
Flush back box
Mild steel, galvanised, width: 115mm, height: 175mm, depth: 50mm (approx.)
Surface back box
Mild steel, black painted, width: 130mm, height: 194mm, depth: 55mm (approx.)

Suitable for