SKU: 25002825088

Louroe ASK-4 #501-TLI-CS Audio Monitoring Kit

Sale price$60084.00 Regular price$66760.00
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Description

Louroe ASK-4 #501-TLI-CS Audio Monitoring KitMade in USA The ASK 4 #501 TLI CS Audio Monitoring Kit from Louroe Electronics is a single zone audio monitoring system with bi directional audio capabilities. This kit consists of a TLI CS Speaker Microphone, an AP 1TB Audio Base Station, an AC 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

  • Made in USA

The ASK-4 #501-TLI-CS Audio Monitoring Kit from Louroe Electronics is a single-zone audio monitoring system with bi-directional audio capabilities. This kit consists of a TLI-CS Speaker / Microphone, an AP-1TB Audio Base Station, an AC 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. Distance between AP-1TB Base Station and speaker / microphone can be up to 1,000' (305m).

The TLI-CS Speaker / Microphone is a 2-way speaker / microphone unit used with various Louroe engineered systems for audio monitoring applications. It features a microphone and an 8� (20.32cm) speaker within a single housing. The microphone is an electret condenser type with a pre-amp, omni-directional pattern, and it produces line level output. The unit has an 8W Speaker with a 70V transformer. The speaker / microphone unit is designed to be flush mounted to a ceiling. It is suitable for use in hospital therapy labs observation rooms, cardio cath labs, corporate training sessions, lobby entrances, and municipal buildings.

The UL listed AC Adapter supplies 12VDC and 500mA to the AP-1TB Base Station and the TLI-CS Speaker / Microphone. The 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.

TLI-CS Speaker / Microphone
  • Omni-directional microphone and 8� (20.32cm) speaker
  • Distance between AP-1TB Base Station and speaker / microphone can be up to 1,000� (305m)
  • High sensitivity to low sound pressure
  • Moisture resistant resin impregnated cloth speaker cone
  • Microphone pre-amp contains a sensitivity switch for lowering gain

�

In the Box
Louroe ASK-4 #501-TLI-CS Audio Monitoring Kit
  • AP-1TB Audio Base Station
  • TLI-CS Speaker / Microphone
  • AD-1 Plug-In Switching AC Adapter
  • Dual RCA Connector Cable
  • Limited 1-Year Warranty
Base Station
Input Sensitivity Remote Microphone: 0.78 Vrms
Talkback Microphone: -45 dB
Output Power Monitored: 1 W @ 8 ?
Talkback: 1 W into 70 V line
Line Output Impedance 600 ?
Audio Input Impedance 10 k?
Frequency Response 100 Hz to 10 kHz
Headphone Impedance 8 to 600 ?
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)
Speaker
Power Rating 15 W
Input 70 V, constant
Frequency Response 80 Hz to 8 kHz
Impedance Voice Coil: 8 ?
Speaker Size 4.00" (10.16 cm)
Microphone
Type Electret condenser microphone
Output Line level (0 dB @ 1 k?)
Output Impedance 600 ? unbalanced, microphone only
Frequency Response 40 Hz to 15 kHz � 1 dB
Current Drain 4 mA
Supply Voltage 12 VDC
Mechanical Specification
Speaker Size 8.00" (20.32 cm)
Weight 3.0 lb (1.4 kg)
Adapter
Input 100 to 240 VAC, 60 Hz, 0.3 A
Output 12 VDC, 500 mA
Packaging Info
Package Weight 9.0 lb
Box Dimensions (LxWxH) 18.0 x 16.0 x 8.0"
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 25002825088

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Dawn S.
Port Orchard, US
★★★★★ 5
Top-tier engine protection that runs quiet and smooth
Size: 5 Quarts
I’ve used Castrol EDGE in a couple of our vehicles and always come back to it for consistent performance. It extends the time between oil changes and holds up well under both daily driving and highway mileage. We don't "extend the time" though. It's changed, on the dot, every time. The consistency and quality of the oil's condition at change, though, is easily able to be seen that it would go for much longer. Engine runs quieter, and I’ve noticed better fuel efficiency over time compared to conventional oil. Whether that's how attentively I drive and watch the mileage meter on the dash or the oil - is up for debate ;) It doesn’t burn off as quickly either, which is great if you’re keeping an eye on long-term engine health. The bottle design pours cleanly with a smart spout, which saves unnecessary messes in the garage. Pros: Strong wear protection and long-lasting Improves engine quietness Easy-pour design Tip: Use it with a high-quality oil filter for maximum benefit don’t skimp on either part and you'll be golden.
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Reviewed in the United States on June 26, 2025
E
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Eric C.
Natrona Heights, US
★★★★★ 5
Excellent choice for long oil change intervals.
Size: 1 Quart, Pack of 6
I'm a former dealership mechanic and for years I used whatever we had in the bulk tank which was usually Valvoline conventional. My last job was at a German car dealership. Castrol was the oil recommended by the German manufacturers and that's when I started using Castrol. In my experience Castrol is an excellent oil. My 2014 Ford just rolled over 242,000 miles and even with factory 10,000 mile oil change intervals, from what I can see through the oil fill the top end of the engine is still clean. I've never had to remove the valve cover. It's using about a quart between oil 10,000 mile oil changes which is great because when it was new it used about a 1/2 quart between changes.
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Reviewed in the United States on January 28, 2026
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Doraiky
Belleville, US
★★★★★ 5
Bueno
Size: 5 Quarts
Bueno
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Reviewed in the United States on June 3, 2026
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E.B.
Lowell, US
★★★★★ 5
switched from Mobil 1
Size: 5 Quarts
always used Mobil 1, my 2003 accord v6 always burned a little bit of oil, switched to this and it barely burns any at all now. will continue to use this from now on.
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Reviewed in the United States on April 27, 2026
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Joe S
Waukegan, US
★★★★★ 4
ITS GOOD OIL
Size: 5 Quarts
OVERALL NOT BAD BUT USING IT TO SEASON A CAST IRON WILL CREATE A BIT TOO DARK OF A SHEEN. WISH THE MANUFACTURER MENTIONED THAT
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