Louroe ASK-4 501-TLM-CF Audio Monitoring Kit

B&H # LOASK4501TLC MFR # LE-370
Louroe ASK-4 501-TLM-CF Audio Monitoring Kit


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  • Made in USA

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The ASK-4 501-TLM-CF Audio Monitoring Kit from Louroe Electronics is a single-zone audio monitoring system with 2-way talk / listen capabilities. This kit consists of an AP-1 TB Audio Base Station, a TLM-CF Ceiling Mount Speaker / Microphone, an AD-1 Plug-in Switching AC Adapter, and a Dual RCA Connector Cable.

The AP-1TB Audio Monitoring Base Station is a single-zone non-alarming unit with listen and talkback features. As a system (with a Louroe speaker / microphone), it provides live audio with a built-in 4" (10.16cm) speaker and a built-in microphone for talkback to the remote area.

The TLM-CF Ceiling Mount Speaker / Microphone is designed to be flush-mounted to a ceiling (The TLM-CS model of this item is available for surface mounting). It consists of an electret condenser microphone and a 4” (10.16cm) speaker. As part of a Louroe audio monitoring system, it provides hands-free 2-way communication between the remote area and the Louroe audio base station. It is suitable for use in convenience stores, therapy labs, hallways, hospital isolation rooms, reception lobbies, elevator cabs, and sleep disorder labs.

The UL listed AC adapter supplies 12VDC and 500mA to the AP-1TB Base Station and the TLM-E Speaker / Microphone. A Dual RCA Connector Cable is provided for making an input / output connection to a DVR / VCR for audio recording and playback.

Note: Wiring Requirements: Wire Type: West Penn 356 or equivalent
Wire Description: 4-conductor cable consisting of 2 conductors shielded, 20 gauge with 22 gauge drain (for microphone connection) and 2 conductors unshielded, 18 gauge (for speaker connection), all in the same jacket.
When this equipment is used as part of an audio monitoring system, the law requires that the public be given notice of AUDIO MONITORING ON THE PREMISES. A decal notice is included with each microphone shipped.

TLM-CF Ceiling Mount Speaker / Microphone
  • Omni-directional microphone and 4” (10.16cm) speaker
  • Distance between AP-1TB Base Station and speaker / microphone can be up to 1,000’ (305m)
  • Microphone can pick up normal sounds up to 15’ (4.57m) all directions or within a 30’ (9.14m) diameter circle
  • Microphone sensitivity switch for lowering gain
  • Hands free talk / listen
UPC: 785583003708
Base Station
Input Sensitivity Remote Microphone: 0.78 Vrms
Talkback Microphone: -45 dB
Output Power Monitored: 1 W @ 8 Ω
Talkback: 1 W into 70 V line
Line Output Impedance 600 Ω or higher (for audio)
Audio Input Impedance 10 kΩ
Frequency Response 100 Hz to 10 kHz
Headphone Impedance 8 to 600 Ω
Power Input 12 VDC, 500 mA
Dimensions (L x W x H) 7.90 x 6.60 x 2.40" (20.07 x 16.76 x 6.01 cm)
Weight 2.2 lb (1.0 kg)
Power Rating 10 W
Input 70.7 V constant
Frequency Response 150 Hz to 12 kHz
Impedance Voice Coil: 8 Ω
Type Electret condenser microphone
Output Line level (0 dB @ 1 kΩ)
Output Impedance 600 Ω unbalanced, microphone only
Frequency Response 40 Hz to 15 kHz ± 1 dB
Current Drain 4 mA
Supply Voltage 12 VDC
Mechanical Specification
Dimensions Speaker: 4.00" (10.16 cm)
BR-4 Grill (Φ): 7.63" (19.38 cm)
ERD-4 Back Box (Φ x H): 7.25 x 3.25" (18.42 x 8.23 cm)
Weight 2.0 lb (0.9 kg) including mounting assembly
Input 100 to 240 VAC, 60 Hz, 0.3 A
Output 12 VDC, 500 mA
Packaging Info
Package Weight 4.95 lb
Box Dimensions (LxWxH) 12.0 x 8.5 x 8.5"
Louroe ASK-4 501-TLM-CF Audio Monitoring Kit
  • AP-1 TB Audio Base Station
  • TLM-CF Speaker / Microphone
  • ERD-4 Back Box for TLM-CF
  • AD-1 Plug-in Switching AC Adapter
  • Dual RCA Connector Cable
  • Limited 1-Year Warranty
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