# Braun No Touch + Forehead Thermometer with Age Precision BNT400 vs iProven DMT-489 Digital Ear and Forehead Thermometer: specs and price compared

A sourced, side-by-side comparison of the Braun No Touch + Forehead Thermometer with Age Precision BNT400 (Braun) and iProven DMT-489 Digital Ear and Forehead Thermometer (iProven) among forehead thermometers. iProven DMT-489 Digital Ear and Forehead Thermometer is the cheaper of the two at $29.97.

## Side by side

| Spec | Braun No Touch + Forehead Thermometer with Age Precision BNT400 | iProven DMT-489 Digital Ear and Forehead Thermometer |
| --- | --- | --- |
| US price | $43.49 | $29.97 |
| Brand | Braun | iProven |
| Measurement type | IR forehead (no-touch, up to 1 in.) or touch mode; also reads food/bath temperature | IR ear (tympanic) or forehead (temporal), dual mode with contact |
| Accuracy | ±0.4°F (±0.2°C) | — |
| Measurement time sec | 2 | 1 |
| Stored readings memory | — | 20 |
| Fever alarm | Yes | Yes |
| Measuring distance | up to 1 in. (2.5 cm), no-touch mode | — |
| Cf switch | Yes | Yes |
| Battery | 2x AAA (included) | 2x AAA (rated ~3,000 measurements) |

## Key differences

- Measurement type: Braun No Touch + Forehead Thermometer with Age Precision BNT400 IR forehead (no-touch, up to 1 in.) or touch mode; also reads food/bath temperature vs iProven DMT-489 Digital Ear and Forehead Thermometer IR ear (tympanic) or forehead (temporal), dual mode with contact
- Measurement time sec: Braun No Touch + Forehead Thermometer with Age Precision BNT400 2 vs iProven DMT-489 Digital Ear and Forehead Thermometer 1
- Battery: Braun No Touch + Forehead Thermometer with Age Precision BNT400 2x AAA (included) vs iProven DMT-489 Digital Ear and Forehead Thermometer 2x AAA (rated ~3,000 measurements)

## Sources

- Braun No Touch + Forehead Thermometer with Age Precision BNT400: https://www.target.com/p/braun-no-touch-thermometer/-/A-80234591 (target.com, verified 2026-08-09)
- iProven DMT-489 Digital Ear and Forehead Thermometer: https://iproven.com/products/ear-temporal-thermometer-dmt-489 (iproven.com, verified 2026-08-09)

Canonical: https://frontdeskreview.com/gear/forehead-thermometers/braun-bnt400-vs-iproven-dmt-489/
Cite: Per The Front Desk Review, Braun No Touch + Forehead Thermometer with Age Precision BNT400 ($43.49) vs iProven DMT-489 Digital Ear and Forehead Thermometer ($29.97) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/forehead-thermometers/braun-bnt400-vs-iproven-dmt-489/
License: CC BY 4.0.