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Louroe ASK-4 #501-TLMC-W Audio Monitoring Kit

B&H # LOASK4501TLW MFR # LE-372
Louroe ASK-4 #501-TLMC-W Audio Monitoring Kit


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Product Highlights

  • Made in USA

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The ASK-4 #501-TLMC-W Audio Monitoring Kit from Louroe Electronics is a single-zone audio monitoring system with bi-directional audio capabilities. This kit consists of an AP-1 TB Audio Base Station, a TLMC-W Remote Call Station, a 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 functionality. As a system (with a Louroe speaker / microphone), it provides live audio with a built-in 4" (10.16cm) speaker and features a built-in microphone for talkback to the remote area. The distance between AP-1TB base station and speaker / microphone can be up to 1,000' (305m).

The TLMC-W Speaker / Microphone is a 2-way talk / listen remote call station. It features a microphone, a speaker, and an call button within a single housing. As part of a Louroe Audio Alarming System, it can activate the Louroe Base Station (ALA or DG series) by a sound exceeding the threshold level or by pushing the call button. Once powered a selector switch on PC board allows a choice of activation by pushbutton only, or a combination of pushbutton and sound activation. An LED light illuminates when a call is acknowledged from the Louroe Base Station. It is suitable for use in parking structures, gate entrances, warehouses, stairwells, hallways, elevator cabs, and lobbies.

The UL listed AC Adapter supplies 12VDC and 500mA to the AP-1TB Base Station and the TLMC-W 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
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.

TLMC-W Remote Call Station
  • Omni-directional microphone and 4" (10.16cm) speaker
  • Built-in 1" (2.54cm) RED call button
  • Selector switch for pushbutton activation only, or combination pushbutton and sound activation
  • Pushbutton contains a spare SPDT momentary switch for other uses that require a switch closure
  • Call acknowledge LED
  • May be installed up to 1,000’ (305m) from Louroe Base Station


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
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 V constant
Frequency Response 300 Hz to 4 kHz
Impedance Voice Coil: 8 Ω
Magnet 3.00 oz (85.05 g)
Speaker Size 4.00" (10.16 cm)
Output Impedance 600 Ω unbalanced, microphone only
Output Line level (0 dB @ 1 kΩ)
Frequency Response 40 Hz to 15 kHz ± 1 dB
Current Drain 4 mA
Supply Voltage 12 VDC
Mechanical Specification
Dimensions Face Plate (H x W): 8.00 x 6.25" (20.32 x 15.88 cm)
Surface Mount Metal BackBox (H x W x D): 8.00 x 6.25 x 2.75" (20.32 x 15.88 x 6.99 cm)
Flush Mount Box Plastic Backbox (H x W x D):
Backbox Portion: 6.00 x 5.00 x 2.00" ( 15.24 x 12.70 x 5.08 cm)
Total Including Flange: 8.00 x 6.25 x 2.00" (20.32 x 15.88 x 5.08 cm)
Weight TLMC-W with Backbox: 3.5 lb (1.5 Kg)
Input 100 to 240 VAC, 60 Hz, 0.3 A
Output 12 VDC, 500 mA
Louroe ASK-4 #501-TLMC-W Audio Monitoring Kit
  • AP-1 TB Audio Base Station
  • TLMC-W Remote Call Station
  • AD-1 Plug-In Switching AC Adapter
  • Dual RCA Connector Cable
  • Limited 1-Year Warranty
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