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Extech 421508 7 Thermocouple Thermometer
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Extech 421508
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Features:
- Seven Thermocouple type selections: K, J, T, E, R, S, and N
- Large EL backlit LCD with two secondary displays for simultaneous T1, T2, T1-T2, plus Elapsed Time
- Min/Max/Avg readings
- Data Hold and Relative functions
- Built-in RS-232 bi-directional PC interface (includes software)
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Description
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This portable digital thermometer is designed to use external K / J / T / E / R / S / N type thermocouples (K-type supplied). Temperature indication follows Reference Temperature/Voltage Tables (N.I.S.T. Monograph 175 Revised to ITS-90). This professional meter, with proper care, will provide years of safe reliable service.
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Models, Options, & Accessories
| Model |
Description |
List Price |
Sale Price |
| 421508 |
THERMOMETER, DUAL J,K,T,E R,S,N, W/ RS-232 SOFTWARE |
| $159.00 |  |
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| 421508-NIST |
DUAL THERMOMETER W/NIST 421508 |
| $224.00 | |
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| Model |
Accessories |
List Price |
Sale Price |
| 872502 |
PROBE, TEMPERATURE, J BEAD WIRE PROBE |
| $13.99 | |
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| 801515 |
PROBE, TEMPERATURE J GENERAL PURPOSE |
| $39.99 | |
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| 872501 |
PROBE, TEMPERATURE, TYPE K - Discontinued - replaced by Extech TP870 |
| 871515 |
PROBE, TEMPERATURE, K GENERAL PURPOSE |
| $35.99 | |
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| 409997 |
CARRYING CASE, LARGE VINYL POUCH |
| $19.99 | |
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Specifications
| General Specifications |
| Display |
5-digit (9999.9), 3-Display, LCD with EL Backlighting |
| Water resistant housing |
Gasket protected front panel |
| Input Protection |
24VDC or 24VAC rms maximum input on any combination of inputs. Max voltage between T1 and T2 inputs is 1V |
| Reading rate |
One reading per second |
| Input connectors |
Accepts standard sub-miniature thermocouple connectors |
| Operating conditions |
32 to 122°F (0 to 50°C); less than 80% RH |
| Storage conditions |
-4 to 140°F (-20 to 60°C); less than 70% RH |
| Dimensions / Weight |
7.5 x 3.6 x 2.1” (192 x 91 x 52.5mm); 11.7oz. (365g) |
| Power Supply |
9V battery |
| Auto Power off |
Meter automatically turns off after 30 minutes of inactivity |
| Battery life |
100 hours typical |
| Range Specifications |
| Thermocouple Range K type |
-328 to 2501°F (-200 to 1372°C) |
| J type |
-346 to 1922°F (-210 to 1050°C) |
| T type |
-328 to 752°F (-200 to 400°C) |
| E type |
-346 to 1454°F (-210 to 790°C) |
| R type |
32 to 3212°F (0 to 1767°C) |
| S type |
32 to 3212°F (0 to 1767°C) |
| N type |
-58 to 2372°F (-50 to 1300°C) |
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