DA50L-A Business Grade Wireless Expandable PIR Based Entry Alert

A Reliable Long Range Entry Alert, the DA50L-A, That's Designed for Business Use

When the off the shelf entry alert from the big box store retailers simply won’t due, look to the DA50L-A.  Simple to install but powerful, this product has the range you are going to need to get the job done right!  An alert is sent to a remote receiver whenever a person passes through the Passive Infrared Receiver.  Install multiple sensor and transmitter to extend the kit.

Accessories & Addons:

  • Description
  • Additional information
  • Product Manual

Do you need Instant Notification when Motion is Detected, or when Customers enter your Office or Store?

The DA50L-A,or the Rodann TXRX-1000A is long range wireless entrance alert product that uses a PIR based transmitter and plug-in receiver.  This is our best selling, flagship product at 1800doorbell.com In our opinion, this is one of the best entrance alerts we offer. This entry alarm has been used to alert store owners when a customer enters a store, alert homeowners when kids open the basement door,or notify offices and warehouses when a stock room door has been opened. The DA50L-A Wireless Door Chime Set is a high-quality passive infrared (PIR) door chime that detects infrared waves whenever something crosses its path. Because it does not use light beam projectors or reflectors, the DA50L-A is resistant to false alarms triggered by light. Works with both open or closed doors. The DA50L-A Wireless Door Chime is battery operated – no wiring required. It is perfect for both personal use in the home as well as commercial use in warehouses or other restricted areas.

Entry Alert PIR Sensor Over Door

DA50L-A Entrance Alert Kit Features:

  • Will work on all doors, including metal
  • Infrared sensor reliably detects motion
  • Wireless system with volume control
  • Easy to install
  • Wide range – receiver can plug into a wall outlet within a 1,000-foot range
  • Battery-powered transmitter (3 “AA” batteries)
  • Receiver operates on 110 volts
  • Designed to prevent false alarms
  • Four chime options available
  • Counters available
  • One Year Manufacturer’s Warranty

Additional information

Weight1.7 lbs
Dimensions7.25 x 7.25 x 3.5 in





kit or accessory


wireless features

Expandable, External Speaker Output, Live 12V DC Output, Multi-Zone, Volume Control

wireless range

1000 ft.

sensor type

Passive-Infrared (PIR)

Customer Reviews

Based on 36 reviews
Excellent product.

Excellent product. We used velcro to mount it to the metal grid of a drop ceiling above the doorway entrance to our Frame Shop. Easy to set up. Although the directions are not explicit we figured it out. Works very well. We like the plain ding-dong tone. Threw away two systems that worked a short time. Both offered a multitude of long annoying sounds and songs. Worth the cost.

Works exactly as expected.

Works exactly as expected. I use it to monior the door in the waiting room of a medical office for when the secretary is out. The sensor aims at the upper part of the door and therefore only chimes when the door is opened. Does not repeatedly chime if someone walks hear the door. Easy to hook up.

We are in an office and needed a chime to alert us if the receptionist was not at her desk.

We are in an office and needed a chime to alert us if the receptionist was not at her desk. We had maintenance use double sided tape and they fixed it to a ceiling panel close to the door, The chime receiver plugs in to any wall socket, we
wanted something very simple and that is what we got. Very good customer service.

Very easy to set-up, Works like a charm.

Very easy to set-up, Works like a charm. I needed an entry chime system that had one sensor but two chime modules and this system was the answer. I bought this kit and added a chime module and it works really well, my second chime module is located about 60 feet away from the sensor and is behind a wall in a back room and still chimes every time.

One of the best door alert systems around for the price.

One of the best door alert systems around for the price. We bought one 10 year ago and it still works