Extech Model 421509 Includes:
- Two Type-K bead wire temperature probes (-4 to 482°F /-20 to 250°C)
- Windows 95/98/ME/NT/2000/XP compatible software
- RS-232 cable
- protective holster
- 9V battery
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| Extech Dual Input Datalogging Thermometer with Alarm |
| 421509 |
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$199.99 |
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| Extech Dual Input Datalogging Thermometer with Alarm and NIST Certificate |
| 421509-NIST |
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$264.99 |
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Extech Model 421509 Features:
- Seven Thermocouple type selections: K, J, T, E, R, S, N
- Large backlit LCD with two secondary displays for simultaneous T1, T2, T1-T2, Time and advanced readouts
- T/C offset adjustment
- REC, MAX, MIN, MAX-MIN, AVG and °C/°F switchable
- Data Hold and Relative Function
- Built-in bi-directional RS-232 PC interface
- Real time clock with calendar
- Selectable auto power off function, disable capability
NOTE: For an additional charge, Extech will supply your meter complete with a Certificate of Calibration Traceable to N.I.S.T. with Data.
| Specifications |
Range |
Resolution |
| K type |
-328 to 2501oF (-200 to 1372°C) |
0.1° (0.2°>700°F) |
| J type |
-346 to 2192oF (-210 to 1200°C) |
0.1° (0.2°>500°F) |
| T type |
328 to 752°F (-200 to 400°C) |
0.1° (0.2°>600°F) |
| E type |
-346 to 1832°F (-210 to 1000°C) |
0.1° (0.2°>450°F) |
| R type |
32 to 3212°F (0 to 1767°C) |
1° |
| S type |
32 to 3212°F (0 to 1767°C) |
1° |
| N type |
-58 to 2372°F (-50 to 1300°C) |
0.2°F (0.1°C) |
| Accuracy |
|
|
| K, J, T, E types |
±(0.05% rdg + 0.6°F) -58°F to 2501°F |
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±(0.05% rdg + 1.4°F) -58°F to -346°F |
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±(0.05% rdg + 0.3°C) -50°C to 1370°C |
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±(0.05% rdg + 0.7°C) -50°F to -210°C |
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| N type |
±(0.05% rdg + 1.6°F) -58°F to 32°F |
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±(0.05% rdg + 0.8°F) 32°F to 2372°F |
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±(0.05% rdg + 0.8°C) -50°C to 0°C |
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±(0.05% rdg + 0.4°C) 0°F to 1300°C |
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| R, S types |
±(0.05% rdg + 4.0°F) 32°F to 3212°F |
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| |
±(0.05% rdg + 2.0°C) 0°C to 1767°C |
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| Supplied Thermocouples |
4', type K (with teflon insulation) Max insulation temp: 500oF (260°C) |
| Accuracy |
± 4oF (±2.2°C) or ± 0.75% of rdg
(whichever is greater) from 32 to 1472°F (0 to 800°C) |
| Battery Life |
100 hours typical |
|
| Dimensions |
7.5 x 3.6 x 2.1" (192 x 91 x 52.5mm) |
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| Weight |
11.7oz. (365g) |
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Extech Instruments
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