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Optex TD-20U Indoor/Outdoor Wireless Infrared Transmitter

by Optex
| 2 answered questions

Price: $73.00 & FREE Shipping. Details
Only 3 left in stock.
Sold by Zbeem and Fulfilled by Amazon. Gift-wrap available.
Want it Tuesday, April 22? Order within and choose One-Day Shipping at checkout. Details
  • 2000 ft. transmission range, line of sight
  • Uses passive infrared to detect motion and send RF signals to receivers
  • Weather proof housing (IP54 rating) for both indoor and outdoor use
  • Selectable 50 ft. Long Range or 17 ft. Fan (Wide) detection pattern
11 new from $57.85

Frequently Bought Together

Optex TD-20U Indoor/Outdoor Wireless Infrared Transmitter + Optex Wireless 2000 Annunciator System + Optex RC-20U 3 Channel Receiver Chimebox w/ Relay
Price for all three: $299.19

These items are shipped from and sold by different sellers.

Buy the selected items together

Read about our customers' top-rated security and surveillance products on our review page: Security and Surveillance

Product Details

  • Shipping Weight: 1 pounds (View shipping rates and policies)
  • ASIN: B003XKS826
  • Item model number: TD-20U
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (19 customer reviews)
  • Amazon Best Sellers Rank:
  • Date first available at Amazon.com: July 27, 2010

Product Description

Use the Optex TD-20U Indoor/Outdoor Wireless Infrared Transmitter enhance your Optex Wireless 2000 and 1000 systems. With a built-in infrared sensor, this wireless transmitter can send alarm signals up to 2,000 feet back to Optex receivers. The Optex T

Customer Questions & Answers

Customer Reviews

4.6 out of 5 stars
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See all 19 customer reviews
Easy to install and has great range.
Danni
This is a replacement and worked well this year.
Michael J Hall
So far, I've not had any false alarms.
PowerUser

Most Helpful Customer Reviews

14 of 14 people found the following review helpful By PowerUser on July 28, 2011
I bought this because I have a long driveway and would like to know when people or vehicles are approaching the house. I've had this installed a while and so far it is performing flawlessly.

The receiver has the option to "learn" codes for 3 transmitters, allowing you to monitor 3 areas simultaneously.

Setup was easy - just plug the receiver in, hook up the battery to the transmitter, and wave your hand in front of it. That's it...the code is now learned and won't be forgotten, even if the power is turned off. There is also a button to "learn" other transmitters if needed. After "learning", mount the transmitter and you're done. The receiver can be mounted on a wall, or the leg popped out and set on a table or counter.

The transmitters are not completely waterproof (no gaskets) and are intended to be mounted under an eave or somewhere that does not get rain directly on it. So if you want to monitor a driveway as I did, you will need to build some type of "roof" over it to shelter it from direct rain. (The clamshell design could use some improvement in this regard.) Other than that, it's real close to perfection.

So far, I've not had any false alarms.
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5 of 5 people found the following review helpful By N. Scott Brown on February 1, 2013
Verified Purchase
I bought one of these sensors along with the chime unit two years ago. The sensor started working erratically. Reading the instruction manual, I replaced the battery but that did not fix it. Since the warranty is two years and the chime unit still works, I decided to purchase a new sensor. It works but I will need to see for how long. $78 is pretty expensive for two years. This has been the best driveway alarm we have had in terms of false alarms. We have a few false alarms but it works better than the others we have tried.
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4 of 4 people found the following review helpful By Jerry E Horton on February 8, 2013
Verified Purchase
I love thiese things. They work in all kinds of weather and give a very good audible warning when something breaks the beam.
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4 of 4 people found the following review helpful By Lance on June 23, 2012
Super simple setup. Great Range and will buy again.

You just have to be creative if you want to hang the outdoor transmitter to a fence like I needed for my setup.
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4 of 4 people found the following review helpful By Danni on January 5, 2012
Easy to install and has great range. It is very wind sensitive. Any movement within its range from leaves, tree limbs, etc., will set it off.
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2 of 2 people found the following review helpful By roger labonte on September 11, 2013
Verified Purchase
SENSITIVE TO MOVEMENT...EVEN BIRDS THIS WORKS AS WELL AS THE ORIGINAL MODEL WE HAVE BEEN USING FOR 10 YRS... THANKS
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2 of 2 people found the following review helpful By Michael J Hall on September 5, 2013
Verified Purchase
I originally bought their system about 2 years ago, but in the second year it became difficult to adjust the sensor - the swivel cover seized up.
This is a replacement and worked well this year. I hope it lasts longer than the first one.
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2 of 2 people found the following review helpful By MoondancerVicky on May 25, 2013
Verified Purchase
We have purchased several and will purchase again as they work great and feel protected as they register any movement.
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