iProven DMT-489 Ear and Temporal Thermometer review

The iProven DMT-489 combines a forehead method and an ear thermometer for $29.97. In temporal mode you make a quick swipe across the side of the temple; pull off the sensor cap and it works as an ear thermometer, which gives you a second way to check a reading that looks off. iProven says it reads in 1 to 2 seconds and lists a built-in fever indicator, a backlit display, a 20-reading memory, automatic power off and a Fahrenheit to Celsius switch. The battery is rated for 3,000 measurements, and the box includes batteries, a soft pouch and a manual. Like other iProven products it carries a 100-day money-back guarantee. The swipe takes more care than a point-and-press no-touch model, it cannot check bath water or bottles, and its memory is smaller than the Beurer FT90's, so it suits households that value the ear option most.

Who it is for

households that want ear and forehead in one

Price

$29.97 one-time on iProven's store.

Sale price $29.97
Quoted from the vendor pricing page on November 14, 2026.

Key features

• Temporal swipe across the side of the temple, or ear mode with the sensor cap removed
• Reading in 1 to 2 seconds
• Built-in fever indicator and backlit display
• 20-reading memory
• Battery life of 3,000 measurements; batteries and soft pouch included

Strengths and weaknesses

• Strength: Ear mode gives a second way to confirm a forehead reading
• Strength: Battery rated for 3,000 measurements
• Strength: 100-day money-back guarantee from iProven
• Weakness: Temporal mode needs a swipe, not a one-press no-touch reading
• Weakness: 20-reading memory is a third of the Beurer FT90's 60
• Weakness: No object or bath mode listed

Key facts

• Type: Temporal swipe and ear
• Reading time: 1 to 2 seconds
• Memory: 20 readings
• Battery life: 3,000 measurements
• Price: $29.97

Where it ranks

iProven DMT-489 Ear and Temporal Thermometer is No. 7 in our Best Forehead Thermometers verdict.