# 42540 Extech Thermometer Used

**Features:**

-   Widest temperature range from -58°F to 1400°F (-50°C to 760°C)
-   Built-in laser pointer for easy targeting, high resolution of 0.1° up to 199.9°
-   High 16 to 1 distance to target ratio measures smaller surface areas at greater distances
-   Large backlit LCD display
-   0.10 to 1.00 adjustable emissivity for better accuracy on different surfaces
-   MAX/MIN/AVG/DIF features display highest, lowest, average, and MAX minus MIN values
-   Automatic Data Hold, auto power off

**Specifications:**

-   Range: -58 to 1400°F (-50 to 760°C)
-   Basic Accuracy: ±2%rdg or 4ºF (2°C) 932°F (500°C)
-   Max. Resolution: 0.1ºF/ºC
-   Emissivity: 0.1 to 1.00 Adjustable
-   Field of View (Distance to Target): 16:1
-   Dimensions: 3.9 x 2.2 x 9" (100 x 56 x 230mm)

The 42540 is a High Temperature IR Thermometer. Measures surface temperature up to 1400 degrees F (760 degrees C) with a built-in laser pointer that identifies target area and improves aim. High resolution of 0.1 degrees. High 16 to 1 distance to target ratio measures smaller surface areas at greater distances. MAX/MIN/AVG/DIF features display highest, lowest, average, and MAX minus MIN values. Complete with 9-Volt battery and hard carrying case.

## Details

- **Price:** 0.0 USD
- **Vendor:** Extech
- **Type:** Therm Met
- **Tags:** Extech, Manufacturers, Meters & DAQ, product_manual_group_2, Product_used, Thermometer

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 0.00 USD | In stock |

## Images

- 42540 Extech Thermometer Used

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> Source: [ValueTronics](https://valuetronics.com/products/42540-extech-thermometer-used)
> Updated: 2026-05-21