How To Check SAR Value: What It Is And Why It Matters In 2024

 

How To Check SAR Value: What It Is & Why It Matters in 2024

SAR (Specific Absorption Rate) measures the amount of radiofrequency (RF) energy absorbed by the body when using a mobile phone. It is important because high SAR levels may pose health risks if exposure exceeds safety limits.

---

📌 What Is SAR Value?

• SAR is measured in watts per kilogram (W/kg).
• It indicates how much radiation your body absorbs from a mobile device.
• Governments set SAR limits to ensure safety:
  • USA (FCC limit): 1.6 W/kg (measured over 1g of tissue)
  • EU (ICNIRP limit): 2.0 W/kg (measured over 10g of tissue)

---

📋 How to Check SAR Value of Your Phone

1️⃣ Check SAR Value Using USSD Code (Works on Most Phones)

📲 Dial: *#07# on your phone.

• If supported, it will display the SAR values for head & body.
• If not, it may redirect you to your phone’s regulatory information page.

---

2️⃣ Check in Your Phone’s Settings

📱 Steps (Varies by Brand):

1. Go to "Settings"
2. Search for "SAR" or "About Phone"
3. Tap on "Regulatory Information" to find SAR values

---

3️⃣ Check SAR on the Manufacturer’s Website

Most smartphone brands list SAR values on their official websites.

• Visit the official website of your phone brand (e.g., Samsung, Apple, Xiaomi).
• Search for "SAR value + [Your Phone Model]".

🔗 Example: Apple SAR values page → https://www.apple.com/legal/rfexposure/

---

4️⃣ Check SAR Value on Official Regulatory Websites

Many countries have online databases to check SAR values:

• FCC (USA) → https://www.fcc.gov/oet/ea/fccid
• ICNIRP (EU Guidelines) → https://www.icnirp.org/

✅ How to Use FCC ID Search:

1. Find your phone’s FCC ID (usually in "About Phone" or on the device box).
2. Enter the FCC ID on the FCC website to check its SAR value.

---

📌 Why Does SAR Value Matter?

Although no conclusive evidence proves that SAR affects health, excessive exposure to radiation could have potential risks.

⚠️ High SAR Risks (Debated)

🔴 May cause heat-related tissue damage
🔴 Possible long-term health concerns (still under study)
🔴 Could lead to headaches or discomfort after long usage

✅ How to Reduce SAR Exposure?

✔️ Use wired or Bluetooth earphones instead of placing the phone directly on your ear.
✔️ Enable speakerphone mode during calls.
✔️ Keep the phone away from your body (don’t carry it in your pocket for long).
✔️ Use your phone in areas with strong signals (low signal = higher radiation).
✔️ Avoid long calls or switch sides to minimize exposure.

---

📌 Summary

• SAR value indicates radiation absorption from mobile devices.
• You can check SAR using *#07#, phone settings, or official websites.
• Lower SAR is better, but exposure can be reduced with simple precautions.