Wheelock Series MTH-24 Specification

Series MTH-24 Multitone Horn
MTH-24
72
The Series MTH-24 Multi-Tone Horn is a loud, weather resistant, attention getting alert designed
for use in noisy or large locations where two different audible signals are required at one
location for easy identification of the alert signal.

Features

• Functions as a telephone extension alert using a pulsed warble tone activated by the
telephone systems interrupted or continuous dry contact closure
• Functions as an auxiliary alert using a steady tone which follows the contact closure of
a door service push-button, time clock, alarm systems, etc.
• When both alerting tones are activated, the steady tone will take priority over the warble
tone
• Built in 10-watt amplifier, electronic dual tone generator (steady or warble), timer for
the warble circuit, and volume control
• 117 dBA @ 1 meter
• Includes RPS-2406, 24 VDC, 600 mA power supply
• Universal mounting bracket
• If an analog ring voltage (direct telephone line or PABX extension) is present, use the
CRT-T-40 telephone relay to develop a dry contact for controlling the Series MTH-24
Multi-tone Horn
• The recommended replacement of the Series 163 package is as follows:
• MTH-24
• CRT-T-40
Specifications & Ordering Information
Model Order Nominal
Number Code Operating Voltage
MTH-24 3801 24 VDC
See page 4 for General and Technical Notes.
Max. Operating
Current @24 VDC
Weatherproof for
600mA Indoor or Outdoor
Installation
Type DBA @ 1 Meter
117