Alertness Testing by BLT

A quick test for alertness? We have that. Let us know what you need for your worksite or group.

That remains true but Bowles-Langley Technology, Inc. has now merged with Predictive Safety, LLC. Together we can offer our customers significant new resources and support. Please check the contacts page for inquiries and support.

Recent News


Introducing Alertometer

We introduced BLT’s newest product, Alertometer, at the National Maritime Safety Association annual meeting in Vancouver. Audience response was very positive. While the full networked version of this system will not be available for several months, the individual user App is available now at the Apple App store. The software will be shaped by interactions […]


Suggestion 13

According to the article below, the Air Traffic Controllers Association has drawn up a list of 12 suggestions to fight fatigue in the control tower. I am not sure where they are in the process but we would like to add one more suggestion to the list. Suggestion 13 is to provide the Alertometer App […]



BLT has introduced Alertometer a new App for the iPhone. An Android version is planned. We will be introducing exciting new features for this App over the next months to make it a useful tool for managers. The advantage of the iPhone (or Android platform phone) is obvious. First, the device is portable so an […]


Colgan Crash

The following is from the Seattle PI: Source: Seattle PI The Rundown on Commuting and Fatigue on the Flight Deck Before the crash of Colgan Air Flight 3407, there wasn’t a lot of attention paid to the oftentimes grueling commuting schedule of pilots in the United States. At the office of the International Civil Aviation […]


Reminder In Case You Forgot

The National Transportation Safety Board has conducted studies, which concluded driver fatigue could be significantly implicated in up to 20% of all large truck accident fatalities and 7% of all accidents involving both fatalities and injuries. In fact, one-third of drivers questioned in a survey admitted they had fallen asleep at the wheel in the […]

BLT is a unique company dedicated to providing new solutions for assessing human performance. Our technologies draw on a wide range of management experience and scientific knowledge to provide customers with solutions that are practical, understandable and useful.