# TLDR Review: SEJOY Infrared Forehead Thermometer DET-306

*Published: 2025-06-14 | Updated: 2025-07-18 | Source: https://shopsavvy.com/reviews-tldr/sejoy-infrared-forehead-thermometer-det-306*

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## Product: SEJOY Infrared Forehead Thermometer DET-306
**Brand:** Cooper-Atkins

## Pros
- Accurate readings comparable to ear thermometers.
- Quick temperature measurement within about 30 seconds.
- Easy to use; simply hold it against the forehead above the eyebrows.
- Can store up to 10 memory readings for tracking temperatures.
- Suitable for both children and adults.
- Simple and aesthetically pleasing design.

## Cons
- Screen can be difficult to interpret.
- Sometimes requires two clicks to power on.
- Not recommended for storing past readings.
- Temperature readings are consistently 2 degrees or more lower than the actual temperature.
- High cost is not justified by performance.
- Frequently displays a low reading error (Er1).
- Error messages are often displayed.
- Directions for use are confusing and seem incomplete.
- Consistently reads an incorrect temperature which is likely inaccurate.

## Bottom Line

The SEJOY Infrared Forehead Thermometer DET-306 offers the convenience of fast temperature readings and memory storage for tracking, but its accuracy leaves much to be desired. Users have noted consistent deviations in the temperature readings, making it unsuitable for those requiring precise measurements. Given the high cost and the performance issues, you might want to consider a different brand for better accuracy and reliability.

## Pros vs Cons at a Glance

| Pros | Cons |
|------|------|
| Accurate readings comparable to ear thermometers. | Screen can be difficult to interpret. |
| Quick temperature measurement within about 30 seconds. | Sometimes requires two clicks to power on. |
| Easy to use; simply hold it against the forehead above the eyebrows. | Not recommended for storing past readings. |
| Can store up to 10 memory readings for tracking temperatures. | Temperature readings are consistently 2 degrees or more lower than the actual temperature. |
| Suitable for both children and adults. | High cost is not justified by performance. |
| Simple and aesthetically pleasing design. | Frequently displays a low reading error (Er1). |
|  | Error messages are often displayed. |
|  | Directions for use are confusing and seem incomplete. |
|  | Consistently reads an incorrect temperature which is likely inaccurate. |

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*About this review: We pulled together findings from professional and user reviews, and cross-referenced them with ShopSavvy's pricing data from thousands of retailers to give you the short version.*