How effective is using handheld laser temperature readers for screening employees? Do the readers have to be geared for reading body temperature?

If an employee's temperature exceeds 37.8, the employee should not be allowed to enter the workplace, and should contact a physician to be tested. However, keep in mind that only 30% of symptomatic COVID cases include fever; your screening process should address other recognized symptoms (cold/flu or gastrointestinal symptoms, loss of sense of smell) as well.