Model No:EM-61F
| Range | 0.00 to 50.00 FTU; 50 to 1000 FTU. |
| Resolution | 0.01 FTU (0.00 to 50.00 FTU); 1FTU (50 to 1000 FTU). |
| Light source | Infrared LED. |
| Light detector | Silicon photocell. |
| Auto Off | After 5 minutes of non-use. |
| Calibration | 3 points (0 FTU, 10 FTU and 500 FTU) |
| Power supply | 4 x 1.5V AA batteries / approx 60 hours of continuous use or 900 measurements. |