9 Best
Intercom Circuits
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Product Highlights- Anti-interference: the side sound elimination chip has automatic noise suppression function, which can effectively improve howling.
- Easy to install: outside the machine's microphone and speakers to use the integration of design and front-line system of the host to connect, easy installation.
- Hands free: adopting two-way voice intercom communications technology, automatic identification of processing speech signals during a call does not require any action.
- High sound quality: comprehensive application of electro-acoustic technology experience, the selection of high performance electro-acoustic circuit design, the output power up to 3w, voice clear and loud voice distinguished high.
- Guarantee: 2 months money back promise and 1 year quality service. any quality problem of the item,please contact our customer service team directly.
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Product Highlights
- 【accurate & easy】with optional continuous or adjustable generator, the cable toner is simple and the test results are accurate.one button operation. clip and trace, 1 second to identify cables. convenient to carry and storage the cable tracer with carrying bag, and protect it from demage, makes it durable.
- 【safety in use】wire toner tracer has spring-loaded on/off button; adjustable volume sensitivity control; recessed terminal ports for handset connection; resistive plastic carbon-fiber tip prevents accidental shorts when probing wires. insulation probe and built-in loudspeaker can effectively avoid short circuits of conductor and make the network toner and probe kit safe...
- 【high quality】this tone generator and probe kit is made of high-quality materials, wear-resistant, corrosion-resistant. the gain is normal 30db, the input impedance is nominal 100m ohm, and please note that the wire tracker needs two 9v batteries(not included).
- 【powerful & professional】 when used in conjunction with any tone generator, professional wire toner probe kit with adjustable volume is designed to identify and trace wires or cables within a group without damaging the insulation. for non-terminal cables, clamp mode can be used for direct measurement, as well as for telephone and network line measurement.
- 【widely application】this cable sniffer are widely used in the maintenance of cables and wires. the measurement area includes line tracking, short circuit test, clear/busy/ringing identification. selectable continuous or variable tone generater.
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Product Highlights
- Hbk-p01 switching power supply is specially used for access control system.
- This device adopts rotary timmer potentiometer which have excellent performance makes the delay time more accurate.
- Worldwide voltage input 110-240vac
- With working current of 3a, it can provide electric lock and access controller with 12vdc steady output voltage.
- Remarks: opening time must set to 0 second when connecting with electric controlled lock. otherwise electric bolt lock would be burned down
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Product Highlights
- Easy to use and with guaranteed vimar reliability
- Vimar 887u universal ap home telephone without hearing lock for ac call systems and sound system, compatible with third party home phones for ac or electronic call systems (non-digital), white
- Instructions and tutorials on the vimar website
- Door intercom for those who like the essential. house phones with puristic lines that harmonise with any living style
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Product Highlights
- ● 25 polyphonic ringtones are free to switch, elegant and beautiful, farewell monotonous, ringtones can be large or small, support ringback function.
- ● 700tvl camera with aluminum alloy panel.
- ● 4.3" tft lcd color screen,classic design,adjustable color, brightness and ringtone volume.
- ● handsfree dual-way intercom and indoor monitoring，when a visitor ring the bell, the monitor will be activated and show the image outside, then you can see and hear outside.
- ● ip54 and rainproof cover to prevent rain and dust.
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Product Highlights
- Intercom doorphone practical and convenient, widely used in offices, warehouse
- Operation distance 200m, 2-line connected, strong signal and clear communication,high strength, high cost performance.
- Intercom doorphone energy saving and no current consumption while not work.
- Intercom doorphone for double rooms, two hundred talk distance, more convenient.
- Intercom doorphone easy to install, diy installation, can be placed on the desktop or hanging walls,easy to use, suitable for novice or professional use.
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Product Highlights
- High performance: equipped with 36w 50w transformer, can meet the needs of one access control machine, 1/2 electric lock or 1/2 280kg magnetic lock at the same time.
- Ups power supply: support ups function, which provides continuous power to keep operation and avoid production interruptions.
- Fine workmanship: professional manufactured, exquisite workmanship with unique design, ensure stable performance and high reliability.
- Safe to use: the power supply has safety protection function to avoid power overload or short circuit and maintain the efficient working performance of the circuit.
- Parameter: the output voltage is 12v, the output current is 5a, and the input voltage is 220v, which is suitable for locks, access control, building intercom.
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