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


Overtime Risks

The following is straight from Circadian Technologies’ news email. More Evidence on the Risks of Overtime Research from the University of Massachusetts shows a strong link between working overtime and sustaining a work-related injury. This was found to be true for all occupations, not just those that were physically demanding or in dangerous industries. Of […]


Participate and Be Rewarded

I have worked closely with Circadian Technologies. Inc. over the past years. This includes losing some sleep in their Sleep Lab. I have to admit though, Dr. Ted langley did the hard part and stayed up all night with subjects being tested. Circadian represent one of the best resources in the country for information about […]


Crossing Guard Fired

The following story from the Houston Chronicle, which was picked up on NPR, is another reminder of how pervasive urine testing is becoming. Readers of this blog already know that I am not in favor of the use of drugs, but it is worth repeating that I am not. Nor am I against using urine […]


Evasion of Urine Tests

I am following the news with fascination as the House Energy and Commerce Committee, under subcommittee Chairman, Ed Whitfield, R-KY, begins to discover the seedy side of drug testing. The committee has found evidence from numerous witnesses that urine tests are widely evaded. Numerous web sites advertise a variety of devices that can be used […]


Another point about fatigue

A couple of quotes from my reading: “According to the National Highway Traffic Safety Administration, over 100,000 automobile accidents a year are caused by driver fatigue: a number that includes over 1,550 dead and 71,000 injured. Accidents caused by tired drivers may actually be much higher: determining whether fatigue played a role in a crash […]

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.