- Details
- Category: Electromagnetic Field Meters

The Extech EMF510 detects energy from electromagnetic fields (EMF) and electrical impulses, and it is sensitive to extremely low frequency levels. The built-in single-axis sensor can monitor power lines, electrical appliances, fans and blowers, and electrical circuits in two ranges: milli-Gauss and micro-Tesla. The EMF510 has a wide backlit LCD for readability in low-light environments, an ergonomic compact design with a wrist strap, auto power off, and a Min/Max function.
Electromagnetic Field (Gauss) | 200.0/2000mG |
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Electromagnetic Field (Gauss) Basic Accuracy | ±(5% of reading + 3 digits) @ 50/60Hz |
Electromagnetic Field (Gauss) Max Resolution | 0.1/1mG |
Electromagnetic Field (Tesla) | 20.00/200.0µT |
Electromagnetic Field (Tesla) Basic Accuracy | ±(5% of reading + 3 digits) @ 50/60Hz |
Electromagnetic Field (Tesla) Max Resolution | 0.01/0.1µT |
Frequency Bandwidth | 30 to 300Hz |
Number of Axes | Single axis |
Certifications | CE |
Dimensions | 4.2 × 2.3 × 1" (107 × 58 × 25mm) |
Power | 3 × AAA (1.5V) batteries |
Warranty | 2 years |
Weight | 5.6oz (160g) |
- Details
- Category: Electromagnetic Field Meters

The Extech 480846 RF EMF Strength Meter analyzes high frequency radiation from 10 MHz to 8 GHz. Ideal for mobile phones, cell phones, base stations, RF hotspot location, wireless network (Wi-Fi) RF detection, RF "electrosmog" detection, microwave leakage, and wireless communication applications (CW, TDMA, GSM, DECT). This meter has non-directional measurement with a 3-channel (triaxial) measurement probe, max hold and average functions, and manual store/recall for up to 99 data sets. In addition, there is an audible alert with a threshold that the user can set. The meter comes with a 9-volt battery and a carrying case.
Alarm | Audible with adjustable threshold with On/Off |
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Frequency Bandwidth | 10MHz to 8GHz (optimized for 900MHz, 1800MHz, 2.7GHz, 3.5GHz, 8GHz) |
Memory | Manual store/recall of 99 sets |
RF Electromagnetic Field | 20mV/m to 108.0V/m, 53µA/m to 286.4mA/m, 1µW/m² to 30.93W/m², 0µW/cm² to 3.093mW/cm² |
RF Electromagnetic Field Max Resolution | 0.1mV/m, 0.1µA/m, 0.1µW/m² , 0.001µW/cm² |
Certifications | CE |
Dimensions | 2.6 × 2.4 × 9.7" (67× 60 × 247mm) |
Power | 1 × 9V battery |
Warranty | 2 years |
Weight | 8.8oz (250g) |
- Details
- Category: Electromagnetic Field Meters

This RF EMF Strength Meter measures high-frequency radiation in the 50MHz to 3.5GHz range. Suitable for mobile phones, cell phones, base stations, identifying RF hotspots, wireless network (Wi-Fi) RF detection, RF "Electrosmog" detection, and microwave leakage. It has a non-directional measurement probe with three channels (triaxial), Max Hold and Average functions, and the ability to manually store and recall up to 99 data sets. In addition, there is an audible alert with a threshold that the user can set. The meter comes with a 9-volt battery and a carrying case.
Alarm | Audible with adjustable threshold with On/Off |
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Frequency Bandwidth | 50MHz to 3.5GHz (Measurement optimized for 900MHz, 1800MHz and 2.7GHz) |
Memory | Manual store/recall of 99 sets |
RF Electromagnetic Field | 20mV/m to 108.0V/m, 53µA/m to 286.4mA/m, 1µW/m² to 30.93W/m², 0µW/cm² to 3.093mW/cm² |
RF Electromagnetic Field Max Resolution | 0.1mVm, 0.1mA/m, 0.1mW/m², 0.001mW/cm² |
Certifications | CE |
Dimensions | 9.3 × 2.4 × 2.4" (237 × 60 × 60mm) |
Power | 1 × 9V battery |
Warranty | 2 years |
Weight | 7oz (200g) |
- Details
- Category: Electromagnetic Field Meters

The 480826 Triple Axis EMF Tester is intended to give a rapid, dependable, and simple solution to detect electromagnetic field radiation levels near power lines, electrical appliances, and industrial devices. Measures electromagnetic fields along three axes (X, Y, and Z). Calibrated to measure EMF radiation over a wide bandwidth ranging from 30 Hz to 300 Hz. Complete with sensor, 3 foot (930 mm) cord, 9V battery, and protective carrying case.
Electromagnetic Field (Gauss) | 200mGauss, 2,000mGauss, 20,000mGauss |
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Electromagnetic Field (Gauss) Basic Accuracy | ±(4% of reading + 3 digits), ±(5% of reading + 3 digits), ±(10% of reading + 5 digits) |
Electromagnetic Field (Gauss) Max Resolution | 0.1mGauss, 1mGauss, 10mGauss |
Electromagnetic Field (Tesla) | 20µTesla, 200µTesla, 2000µTesla |
Electromagnetic Field (Tesla) Basic Accuracy | ±(4% of reading + 3 digits), ±(5% of reading + 3 digits), ±(10% of reading + 5 digits) |
Electromagnetic Field (Tesla) Max Resolution | 0.01µTesla, 0.1µTesla, 1µTesla |
Frequency Bandwidth | 30Hz to 300Hz |
Number of Axes | Three axes X, Y, Z direction |
Update Rate | Approx. 0.4 second |
Certifications | CE |
Dimensions | 7.6 × 2.6 × 1.2" (195 × 68 × 30mm) |
Power | 1 × 9V battery |
Warranty | 2 years |