# 421502-NIST Extech Thermometer New

**Features:**

 **This product was DISCONTINUED on 6/4/2026, please let us know if you would like a refurbished 421502.**

-   Temperature range: -328 to 2498°F (-200 to 1370°C) for Type K and -328 to 1922°F (-200 to 1050°C) for Type J
-   Rugged water resistant design with protective holster/stand
-   Large 2000 count LCD displays T1, T2 or T1-T2, plus Elapsed Time
-   Data Hold, Relative, MIN/MAX/AVG and HOLD functions
-   Programmable Hi/Lo audible alarms
-   Selectable °C/°F units

**Accessories:**

-   TP870 - Bead Wire Type K Temperature Probe (-40 to 482°F)
-   TP875 - Bead Wire Type K Temperature Probe (-58 to 1000°F)
-   TP873-5M - Extra Long Bead Wire Type K Temperature Probe (-22 to 572°F)
-   871515 - General Purpose Type K Probe (-40 to 1292°F)
-   881602 - Type K Surface Probe (-40 to 932°F)
-   881603 - Type K Immersion Probe (-40 to 1472°F)
-   881605 - Type K Immersion Probe (-40 to 1472°F)
-   881616 - Magnetized Type K Surface Probe (-40 to 482°F)
-   TP882 - Type K Penetration Probe (-50 to 1000°F)
-   801515 - General Purpose Type J Probe (-40 to 842°F)
-   872502 - Bead Wire Type J Temperature Probe (-40 to 392°F)
-   TP200 - Type K Pipe Clamp Temperature Probe (-4 to 200°F)
-   TP400 - High Temperature Type K Pipe Clamp (-4 to 450°F)

**Specifications:**

-   Range, Type K °F (°C): -328 to 2498°F (-200 to 1370°C)
-   Range, Type J °F (°C): -328 to 1922°F (-200 to 1050°C)
-   Basic Accuracy: ±(0.05% rdg +0.6°F); ±(0.05% rdg +0.3°C)
-   Resolution: 0.2°F/0.1°C
-   Dimensions: 7.6 x 3.6 x 2.1" (192 x 91 x 53mm)

The 421502-NIST Dual Type K/J Input Thermometer has a dual display and programmable High/Low audible alarms. It features a high, 0.05-percent accuracy, Min/Max/Average readings, Data Hold, Relative function, and differential temperature measurement between Type J, Type K or both J and K. Comes complete with two Type K bead temperature probes, protective holster with stand, and 9V battery.

## Details

- **Price:** 276.99 USD
- **Vendor:** Extech
- **Type:** Therm Met
- **Tags:** Extech, Manufacturers, Meters & DAQ, product_manual_group_2, Product_new, Thermometer

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 276.99 USD | In stock |

## Images

- 421502-NIST Extech Thermometer

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> Source: [ValueTronics](https://valuetronics.com/products/421502-nist-extech-thermometer-new)
> Updated: 2026-06-05