SL-100 Professional Safe Line Telephone Analyzer

Productive Electronic


Many in stock


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If you think you need to analyze your phone line then you've found the ideal analyzer for phone lines.

Common voltage sensing phone recorders that start recording when you pick up the phone will never even know you are there. They will simply remain on the line in standby mode because the phone line analyzer will render it useless.

But what about those pesky, high tech crystal controlled parallel line transmitters? Useless... The phone line analyzer will simply shift their frequency and they will transmit nothing but static. Even the feared VOX, voice activated, systems are putty in the hands of the phone line analyzer. The Safe Line 100 Anti-Vox systems are neutralized so that the money and effort put into installing these devices by your adversary are futile.

You will be alerted to any extension eavesdroppers by a special "muting" circuit that stops your conversation until the offender disconnects or you decide to override the system by switching off of safe mode.

  • Digital Display Will Reflect Any Change In Your Phone Line Voltages
  • Automatically Deactivates All Known Wire Tapping Devices (On Premise)
  • Creates Shift of Frequencies In Crystal Line Transmitters
  • Voice Simulation Causes VOX Equipment to Record Noise When Line is Not in Use
  • Turns Off Voltage Sensing Recording / Transmitting Devices
  • Fully Line Powered
  • Requires No Batteries or AC Adaptor
  • Instantly Alerts You to Extension Eavesdropping Attempts
  • 100% State of the art Digital Surface Mount Technology

Wiretapping and bugging devices are very common. You don't need to have known enemies to become a victim. If you have anything to lose then you need protection. Corporate espionage, suspicious spouses, nosey neighbors, the list goes on and on. People with too much time on their hands or someone wanting to get the dirt on you will go to great lengths to get it. Use the phone line analyzer as your first line of defense against the known and unknown enemies.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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