Isotropic electric field probe - 100 kHz to 8 GHz: WPF8 | Wavecontrol

The WPF8 is an isotropic electric field probe designed for RF exposure assessment from 100 kHz to 8 GHz. It provides RMS electric field measurement for professional EMF surveys, telecom audits, industrial safety assessments and laboratory RF exposure evaluations.

With a sensitivity from 0.2 V/m, a flat frequency response and excellent attenuation at 50/60 Hz, the WPF8 is suitable for measurements performed in accordance with international standards. It is compatible with SMP2, MonitEM and MapEM platforms.

The probe is available in two versions: the standard WPF8 and the WPF8-HP High Power version, which extends the CW measurement range up to 1000 V/m.

Benefits

• Wide RF coverage: electric field measurement from 100 kHz to 8 GHz.
• High sensitivity: field measurement from 0.2 V/m for low-level RF exposure assessment.
• Isotropic RMS measurement: reliable electric field evaluation without probe orientation constraints.
• Standard and High Power versions: WPF8 for standard applications and WPF8-HP for high-field environments.
• Excellent 50/60 Hz attenuation: attenuation greater than 80 dB to reduce low-frequency interference.
• ISO 17025 calibration: accredited calibration under ILAC for professional measurement workflows.
• Compact and lightweight: 95 g probe weight for field operation and portable EMF measurement campaigns.

Key features

• Frequency range: 100 kHz to 8 GHz.
• Measured field: electric field.
• Sensor type: isotropic RMS diode technology.
• Frequency response type: flat.
• Standard measurement range: 0.2 to 130 V/m CW and 0.2 to 20 V/m RMS.
• High Power measurement range: 0.2 to 1000 V/m CW and 0.2 to 20 V/m RMS.
• Dynamic range: 52 dB for WPF8 and 70 dB for WPF8-HP.
• Sensitivity: 0.2 V/m.
• Resolution: 0.02 V/m up to 7.5 V/m and 0.1 V/m from 7.5 V/m to 130 V/m.
• Frequency response: ±1.5 dB from 250 kHz to 6 GHz, +0.5 / -2.5 dB from 6.5 GHz to 8 GHz, and -3 dB at 100 kHz.
• Linearity: ±0.5 dB from 0.5 V/m to 100 V/m.
• Isotropic deviation: ±1 dB at 2 GHz.
• Calibration: ISO 17025 accredited, ILAC.
• Calibration period: 24 months recommended.
• Temperature range: -20 °C to 50 °C.
• Temperature response: +0.1 / -1 dB, related to 20 °C.
• Dimensions: 28.4 cm x 6 cm diameter.
• Weight: 95 g.

Typical applications

• Telecommunications: certification and audit of telecommunication services including GSM, 3G, LTE, TDT, AM, FM and WiFi.
• Industry: assessment of industrial processes for worker RF exposure protection.
• Defence: assessment of military sites and personnel exposure protection.
• Laboratories and R&D: RF exposure protection for research, development and laboratory personnel.
• EMF compliance surveys: electric field measurements requiring coverage from 100 kHz to 8 GHz.

Why choose WPF8

The WPF8 is suitable for technical teams requiring a sensitive and compact electric field probe for RF exposure measurements across common telecommunications, industrial and laboratory frequency ranges. Its 100 kHz to 8 GHz coverage makes it relevant for many broadband EMF measurement campaigns.

The WPF8-HP High Power version provides additional flexibility for sites where higher CW field strengths must be measured. With isotropic RMS measurement, ISO 17025 accredited calibration and compatibility with SMP2, MonitEM and MapEM, the WPF8 supports repeatable and standards-oriented field measurements.