| Recording Compacity: | Max. 16,000 data points × 16 ch, 32,000 data points × 8 ch |
| Communications Method: | Infrared Optical Communications (logger to the 3911-20), RS-232C (3911-20 to a PC) |
| Transfer Rate: | Logger to the 3911-20: 500 data/s
3911-20 to a PC: 1000 data/s (19200 bps) |
| Compatible OS: | Windows 95 / 98 / Me, WindowsNT 4.0 |
| Power Supply: | 4 x 1.5 V, LR03 (AAA) alkaline dry cell batteries, lifetime more than 80 days (at 20 °C, when not in operation), Transferring data more than 100 times (at 20 °C, receiving and sending maximum 16000 × 16 channels of data from logger to a PC) |
| Dimensions: | 68.5 mm(2.70 in)W × 92 mm(3.62 in)H × 36 mm(1.42 in)D |
| Weight: | 150 g (5.3 oz) including batteries |
| Accessories: | LR03 alkaline dry cell batteries (4), communication software (1) |