| Model Name/Number | 4222 |
| Circuit | Custom one-chip of microprocessor LS circuit |
| Power off | Auto shut off saves battery life or manual off (REC function) |
| Brand | Lutron |
| Sampling Time | Approx. 1 second |
| Operating Humidity | Less than 80% RH. |
| Power Current | Approx. DC 4 mA |
| Weight | 182 g/ 0.4 LB |
| Dimension | 205 x 48 x 40 mm (8.1" x 1.9" x 1.6") |