| General medical and surgical hospitals | $12.93 |
| Grocery stores | 11.77 |
| Other general merchandise stores | 11.11 |
| Department stores | 10.56 |
| Health and personal care stores | 10.51 |
Certified technicians may earn more. Shift differentials for working evenings or weekends also can increase earnings. Some technicians belong to unions representing hospital or grocery store workers..
Source: Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2006-07 Edition