| Designation | TKTL 21 |
| Temperature range using infrared | -60 to +760 ºC (-76 to +1 400 ºF) |
| Temperature range using probe | -64 to +1 400 ºC (-83 to +2 552 ºF) |
| Probe supplied | TMDT 2-30 included max. 900 °C (1650 °F) |
| Distance-to-spot ratio | 30:1 |
| Emissivity | 0,1-1,0 |
| Measurement accuracy | +/-2% of reading or 2°C (4°F) whichever is greater |
| Operating temperature | 0 to +50 ° C (32 to +122 °F) 10 to 95% R.H. |
| Storage | -10 to +60° C (14 to +140 °C) 10 to 95% R.H. |
| Respons time msec | 1000 |
| Displayed resolution | 0.1 °C/F (below 999.9);
1 °C/F (above 1000) |
| Display | Colour backlit LCD |
| Spectral response | 8-14 µm |
| Measurement modes | Maximum; Minimum; Average; Difference (between min and max); Probe/IR dual temperature |
| Alarm modes | High and low level alarm with warning sound |
| Laser | 8x red targeting laser dots, Class 2 |
| Operating time | Min. 30 hours continuous use without laser |
| Auto switch off | Automatic, 60 seconds after trigger release in IR mode and 12 minutes after trigger release in probe mode |
| Contents | 1x IR thermometer (TKTL 21);
1x Temperature probe (TMDT 2-30);
2x AAA Alkaline batteries;
1x Instructions for use;
1x Carrying case |
| Product dimensions | 119.2 x 171.8 x 47.5 mm (4.7 x 6.8 x 1.9 in) |
| Packing dimensions | 530 x 85 x 180 mm (20.9 x 3.4 x 7.0 in) |
| Product weight (incl. batteries) | 255.7 g (0.56 lb) |
| Total weight | 1 150 g (2.54 lb) |
