---
product_id: 1841048
title: "Mastercool Infrared Thermometer with Circular Laser, 12:1 Ratio, 52224-A-SP, Gray"
brand: "mastercool"
price: "$222.80"
currency: USD
in_stock: true
reviews_count: 9
category: "Mastercool"
url: https://www.desertcart.ec/products/1841048-mastercool-infrared-thermometer-with-circular-laser-12-1-ratio-52224
store_origin: EC
region: Ecuador
---

# 12:1 laser targeting ratio Backlit color LCD display Temp range -58 to 932°F Mastercool Infrared Thermometer with Circular Laser, 12:1 Ratio, 52224-A-SP, Gray

**Brand:** mastercool
**Price:** $222.80
**Availability:** ✅ In Stock

## Summary

> 🎯 Master every measurement with laser-focused precision!

## Quick Answers

- **What is this?** Mastercool Infrared Thermometer with Circular Laser, 12:1 Ratio, 52224-A-SP, Gray by mastercool
- **How much does it cost?** $222.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/1841048-mastercool-infrared-thermometer-with-circular-laser-12-1-ratio-52224)

## Best For

- mastercool enthusiasts

## Why This Product

- Trusted mastercool brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power Smart:** Auto shutoff after 15 seconds preserves battery life for longer, uninterrupted use.
- • **Instant Readings:** 0.5-second response time means no waiting—get real-time data on the go.
- • **User-Friendly Display:** Backlit color LCD shows max temp, battery life, and units clearly—even in low light.
- • **Wide Thermal Spectrum:** From freezing cold to scorching hot (-58 to 932°F), capture every critical temp with confidence.
- • **Precision at a Distance:** 12:1 field of view lets you measure hard-to-reach spots with pinpoint laser accuracy.

## Overview

The Mastercool Infrared Thermometer 52224-A-SP offers a broad temperature range (-58 to 932°F) with ±2% accuracy, a 12:1 distance-to-spot ratio for precise targeting via circular laser, and a vibrant backlit color LCD for easy reading. Compact and battery-efficient, it’s designed for professionals needing quick, non-contact surface temperature measurements in diverse environments.

## Description

Mastercool’s infrared thermometer with circular laser offers laser targeting accuracy, an enhanced back-lit color LCD display and an expanded temperature range. The compact design is simple to use, requiring just a simple press of the trigger to begin reading temperatures and easy to store, in the convenient plastic storage box included. Mastercool’s infrared thermometer with circular laser comes with 2 AAA batteries, instruction manual, 1” dial thermometer with a temperature range of 0-220˚F and a plastic molded carrying case. Specifications: Non Contact Temperature Range: -58 to 932˚F (-50 to 500˚C) Field Of View: 12 : 1 Display Illumination: Backlit LCD Color display Target Indicator: Circular Laser Spot Emissivity: 0. 95 Resolution: 0. 5˚F / 0. 5˚C Accuracy: +/-2˚C (4˚F) or +/-2% of reading Response Time: 0. 5 seconds Power Off: Automatic after 15 seconds Battery: 2 AAA Battery Life: Approximately 14 hours

Review: Great device, but don't use for weatherizing - This device works very well, I've not had any problems with it at all. It's accurate, easy-to-use, and fun (A lot of my friends grab it and start taking the temperature of everything they can). I can't justify knocking off any stars for this, because it's not the devices fault, but this really hasn't been very useful for weatherizing. I was expecting to be able to really tell where my house leaked based on the output of this gun, but it's not too effective for that. The problem is, you have to point it at something specific, like the wall next to the window, or the floor in front of the door, and the air coming in just doesn't affect the temperature of those immediate surfaces enough to tell. I'm hoping it'll be more useful for attic insulation, but I'm not too hopeful. It has been somewhat useful for cooking, and I expect it'll become more so as I learn better how to cook and learn more about the science of food.
Review: Great Price - Works well - batteries were included - Purchased to monitor engine/radiator temperature to diagnose (false) overheating. Works well - extremely simple. It gives a continuously updated reading while the trigger is depressed, and also shows the highest recorded temperature during the measurement (you can hold it down for as short or long as you like). The display automatically shuts off just a couple seconds after you release the trigger, so you have to make sure to write down or remember the maximum reading because it will reset with the next trigger pull. Carrying case was nice - If left out in the sun it can overheat and will give an error message and be unable to read until it cools off (oops...). A little difficult to monitor engine parts because the beam spreads out 1 inch for every 12 inches away from the surface. This means you have to get as close as possible to what your measuring if you want it to be very accurate. (I targeted a radiator hose and didn't realize the engine exhaust pipe was in line a few feet behind it - got a REALLY high reading over 400 degrees.) Also, discovered that it works well to figure out what walls in your house are letting in the most heat/cold.

## Features

- EXPANDED TEMPERATURE RANGE of -58 to 932˚F (-50 to 500˚C) provides accurate measurement without having to come in contact with acute surface temperatures. NOT INTENEDED FOR HUMAN TEMPERATURE CALCULATIONS
- 12: 1 FIELD OF VIEW allows for the accurate measurement of targets at greater distances
- BACKLIT COLOR LCD displays surface temperature, maximum temperature, battery life, and unit of temperature in ˚F or ˚C
- CIRCULAR LASER INDICATOR lets the user know precisely where the laser is pointing at any given time. Accuracy - ±2°C (4°F) or ±2% of reading.Emissivity - 0.95. Resolution - 0.1°F / 0.1°C
- AUTOMATIC POWER OFF after 15 seconds to extend the battery life of the 2 AAA batteries included with the unit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000TM7HXC |
| Age Range (Description) | Adult |
| Best Sellers Rank | #171,922 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #73 in Instant-Read Thermometers & Timers |
| Brand | Mastercool |
| Color | Gray |
| Connectivity Technology | Infrared |
| Customer Reviews | 4.4 4.4 out of 5 stars (567) |
| Date First Available | January 9, 2005 |
| Display Type | LCD |
| Global Trade Identification Number | 00700376100600 |
| Included Components | infrared thermometer, dial thermometer, instructions |
| Indoor/Outdoor Usage | Outdoor |
| Is Discontinued By Manufacturer | No |
| Item Length | 6 Inches |
| Item Weight | 6.3 ounces |
| Item model number | 52224-A-SP |
| Manufacturer | Mastercool |
| Manufacturer Part Number | 52224-A-SP |
| Model Name | 52224-A |
| Outer Material | Plastic |
| Power Source | Battery Powered |
| Product Care Instructions | Wipe Clean |
| Response Time | 0.5 seconds |
| Reusability | Reusable |
| Special Feature | Backlit |
| Special Features | Backlit |
| Style | Contemporary |
| UPC | 700376100600 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 932 Degrees Fahrenheit |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Mastercool
- **Color:** Gray
- **Connectivity Technology:** Infrared
- **Display Type:** LCD
- **Included Components:** infrared thermometer, dial thermometer, instructions
- **Outer Material:** Plastic
- **Product Care Instructions:** Wipe Clean
- **Special Feature:** Backlit
- **Unit Count:** 1.0 Count

## Images

![Mastercool Infrared Thermometer with Circular Laser, 12:1 Ratio, 52224-A-SP, Gray - Image 1](https://m.media-amazon.com/images/I/71m5LxH7vCL.jpg)
![Mastercool Infrared Thermometer with Circular Laser, 12:1 Ratio, 52224-A-SP, Gray - Image 2](https://m.media-amazon.com/images/I/61hsL2UpTuL.jpg)
![Mastercool Infrared Thermometer with Circular Laser, 12:1 Ratio, 52224-A-SP, Gray - Image 3](https://m.media-amazon.com/images/I/61s6zN7wgML.jpg)
![Mastercool Infrared Thermometer with Circular Laser, 12:1 Ratio, 52224-A-SP, Gray - Image 4](https://m.media-amazon.com/images/I/61KoN9KHgNL.jpg)
![Mastercool Infrared Thermometer with Circular Laser, 12:1 Ratio, 52224-A-SP, Gray - Image 5](https://m.media-amazon.com/images/I/61vaCvT72xL.jpg)

## Questions & Answers

**Q: battery**
A: YES BATTERIES ARE INCLUDED.

**Q: What is the max distance I can be and still get an accurate reading?**
A: We have used it in the 30-40 ft range and it works wellIt would probably work over a longer distance

**Q: Does it come with both thermometers and the case?**
A: Yes, It most definitely came with both thermometers and the case... nice case at that... But I keep mines in a tool box...

**Q: Este sirve para tomar la temperatura del cuerpo por el corona virus**
A: THIS IS DESIGNED FOR METAL SURFACES.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great device, but don't use for weatherizing
*by I***H on November 29, 2009*

This device works very well, I've not had any problems with it at all. It's accurate, easy-to-use, and fun (A lot of my friends grab it and start taking the temperature of everything they can). I can't justify knocking off any stars for this, because it's not the devices fault, but this really hasn't been very useful for weatherizing. I was expecting to be able to really tell where my house leaked based on the output of this gun, but it's not too effective for that. The problem is, you have to point it at something specific, like the wall next to the window, or the floor in front of the door, and the air coming in just doesn't affect the temperature of those immediate surfaces enough to tell. I'm hoping it'll be more useful for attic insulation, but I'm not too hopeful. It has been somewhat useful for cooking, and I expect it'll become more so as I learn better how to cook and learn more about the science of food.

### ⭐⭐⭐⭐⭐ Great Price - Works well - batteries were included
*by P***. on September 29, 2008*

Purchased to monitor engine/radiator temperature to diagnose (false) overheating. Works well - extremely simple. It gives a continuously updated reading while the trigger is depressed, and also shows the highest recorded temperature during the measurement (you can hold it down for as short or long as you like). The display automatically shuts off just a couple seconds after you release the trigger, so you have to make sure to write down or remember the maximum reading because it will reset with the next trigger pull. Carrying case was nice - If left out in the sun it can overheat and will give an error message and be unable to read until it cools off (oops...). A little difficult to monitor engine parts because the beam spreads out 1 inch for every 12 inches away from the surface. This means you have to get as close as possible to what your measuring if you want it to be very accurate. (I targeted a radiator hose and didn't realize the engine exhaust pipe was in line a few feet behind it - got a REALLY high reading over 400 degrees.) Also, discovered that it works well to figure out what walls in your house are letting in the most heat/cold.

### ⭐⭐⭐⭐ A Fun Toy that does a Great Job
*by L***S on April 22, 2010*

This is one fun toy. Originally I purchased it in order to see what each refrigerator and freezer shelf was reading so I would know which were the coldest. I use it also for getting the correct temperature in deep frying and it seems to be very accurate as compared to another thermometer I have that straddles the pot. It is never more than about 2-3 degrees off and since it is not a cake that is good enough for me. An excellent value for an excellent, lightweight, easy to use thermometer. There is no on/off switch but it does go off automatically after about 15 seconds, as the manual describes. Total battery life, also according to the manual is 15 minutes. I have been using this thing over and over for a month and it is still on the original 2 AAA batteries, which are included. The back light makes the display very clear and legible without reading glasses nor squinting. I find that it is best to point it from a distance of at least 5-6" and the reading is more stable. Very pleased with this purchase. Edited February 14, 2011. A commenter noticed my error in saying the battery life is 15 min. It should have read 15 hours - sorry about that. The batteries are still going strong almost a year later, after much use.

## Frequently Bought Together

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-13*