How much does SAR testing cost?

SAR Testing Cost:

The cost of SAR testing typically ranges from $500 to $3,000, depending on the specific product. To obtain an accurate and detailed quote, you can provide the product specifications to JJR engineers. (Compared to other institutions, we can help you save up to 30% on testing costs.)

Introduction to SAR

SAR stands for Specific Absorption Rate. It is commonly referred to in Chinese as 电磁波吸收比值 or 比吸收率, which translates to the electromagnetic wave absorption rate. SAR measures the rate at which the human body absorbs electromagnetic energy from devices such as mobile phones or other wireless products.

Definition

When exposed to an external electromagnetic field, the human body generates an induced electromagnetic field internally. Since the human body consists of lossy dielectric media, the internal electromagnetic field generates currents, leading to the absorption and dissipation of electromagnetic energy. In biomedicine, SAR is used to characterize this physical process. SAR represents the electromagnetic power absorbed or dissipated per unit mass of human tissue, expressed in W/kg.

How SAR Testing Works

SAR testing is conducted using a system composed of a human model, measuring instruments, probes, and a mechanical arm. The system simulates the exposure of a human body to radiation, assessing the impact of radio frequency emissions from electronic devices.

- The human model's interior is filled with liquid substances designed to mimic the electromagnetic properties of human tissues.

- A probe moves freely within this liquid to conduct measurements.

During testing:

1. Wireless communication devices such as mobile phones are configured to operate at the required test frequencies, emitting at maximum power.

2. Testing software controls a probe mounted on a mechanical arm, scanning the electric field intensity in both planar and spatial ranges.

3. The software uses mathematical formulas and real-world conditions to compute the final SAR value.

SAR Testing Requirements

Electronic products with antennas located within 20 cm of the human body and wireless transmission power exceeding the SAR exemption power limit are required to undergo SAR testing. Common products requiring this test include:

- Mobile phones

- Two-way radios

- Tablets

- Laptops

- POS machines

SAR Testing at JJR Lab in China

JJR Laboratory has introduced an advanced SAR testing system to meet the pressing demands of mobile phone manufacturers.

Features of the SAR Testing System:

- Fully complies with IEEE, IEC, EN, and ANSI SAR standards.

- Offers fast, accurate, safe, and efficient testing.

- Widely recognized as one of the most commonly used and reliable SAR testing systems in laboratories worldwide.

Capabilities:

- Frequency range: up to 6 GHz.

- Supports certification for various product types, including but not limited to GSM, CDMA, and WLAN devices.

Accreditations:

Since the inception of SAR testing and certification services, JJR Laboratory has achieved:

- Recognition under ISO 17025, CNAS, and CMA standards.

- Continuous monitoring of the latest developments in SAR and radio frequency exposure to ensure compliance with regulations for devices operating between 150 MHz and 6 GHz, covering most mobile phones and wireless transmission equipment.