User Manual [Interactive]
- David Blake
- Dec 19, 2025
- 11 min read
Updated: Jan 19
MITO METER 2.0 [EURO] Electromagnetic Field Meter User Manual (2026)
Developed by EnviroSens & Blakes Electronics Integrators
INTRO Introduction
Package Contents OPERATION
MODES RF Mode – Working Window
LFM-X Mode: PowerGrid Monitoring
Measurement Technique
CARE
Maintenance & Warranty
SPECS
Technical Specifications
Reporting & Sample Rate
Introduction The MITO METER 2.0 [EURO] is a compact, easy-to-use yet sophisticated EMF/RF (electromagnetic field and radio-frequency) screening tool. It measures electromagnetic field and radio-frequency intensity from a wide range of sources, including power lines, power distribution boards, household appliances, electronic devices, and wireless technologies such as wearables, tracking devices, Wi-Fi, Bluetooth, 5G, smart meters, and microwave ovens.
As the world's smallest 3-in-1 EMF/RF meter—weighing less than 2 ounces (50 grams)—it is also ideal for discreet carrying or concealment, allowing users to log radiation levels in sensitive or restricted areas using its built-in record and playback functions. (No computer required.)
Designed as a Building Biology pre- and post-screening tool, this device is particularly useful for those familiar with Building Biology’s recommended guidelines. It features a bright, colour-coded, easy-to-read 18-step LED display, allowing users to effortlessly monitor their surroundings in everyday life.
For added versatility, an optional USB data connection kit allows all modes to interface with a computer, Mac, or Android device—enhancing its value for research and technical applications. (Advanced users only.)
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Important Notice
The Mito Meter displays measurement intensity in three colours: green, yellow, and red. These colours serve as a visual guide and do not indicate whether a reading is definitively safe or unsafe.
In general, lower readings, less noise, suggest an environment that aligns more closely with natural electromagnetic background levels, which is important for overall well-being.
This device is designed for both non-professionals and professionals to easily screen EMF/RF levels using a simple and intuitive interface. However, measurements intended for legal, or compliance purposes require specialized equipment and trained operators.
Package Contents
• Pre-installed LiPo rechargeable battery
• Standard USB to Mini-USB charging cable
• Velcro mounting solution
• Rear-mounted alloy body contact voltage pad
• Protective carry pouch
• Pre-installed custom calibration firmware (1.2.07-xx)
Charging LiPo Battery
To charge the Mito Meter battery, use the supplied USB cable to connect it to a USB charger, phone, laptop or computer. The front Red LED will be on during charging and turn off once the battery is fully charged. A full charge provides approximately 8 hours of operation and 48 hours on LFM-X Mode
(Continuous run time can be achieved using a connected external USB power source, like a battery pack or your phone.)
Important: When the battery charge drops below 10%, two solid green lights will appear in RF Mode, regardless of whether any RF is detected. When in LFE Mode and the battery charge drops below 10%, one solid green light will appear regardless of whether any electric field is detected. To avoid the above scenario, make sure the battery is at least half-charged before heading out. Charging for just 15 minutes from a flat battery will provide approximately 50% charge — plenty enough to screen properties for a few hours.
Turning ON the Mito Meter
When the meter is powered on, it performs a quick self-test and displays the battery charge percentage. This sequence lasts approximately 3 seconds. The first LED sweep to the right indicates that the meter is powering on and running a self-test. This is followed by a second LED sweep to the left, which displays the battery charge level. One red light means the battery charge level is less than 10% and the meter shouldn’t be used.
Turn the meter on with the Power ON/OFF switch.
Use the Mode Switch to select a detection mode:
RF Mode – Measures Radio Frequencies, also referred to as microwaves, Wi-Fi and 5G.
o Range: 100MHz to 8GHz
o Alarm One: Sounds at 500 µW/m²
o Alarm Two: Sounds when the maximum power value is exceeded @100,000 µW/m².
en the maximum power value is ex
LFM Mode – Measures Low-Frequency Magnetic fields.
o Range: 40Hz to 10kHz
o Alarm One: Sounds at 200 nT
o Alarm Two: Sounds when the maximum power value is exceeded @2,000 nT.
LFE Mode – Measures Low-Frequency Electric fields, also referred to as e-Fields.
o Range: 40Hz to 50kHz
o Alarm One: Sounds at 30 V/m
o Alarm Two: Sounds when the maximum power value is exceeded @1,000 V/m.
Understanding the Readings
uW/m² (microWatts per square meter)
Used to measure the power density of an RF (Radio Frequency) source. This value is used for measuring RF radiation from:4G/LTE/5G cell sites, phones, smart meters, Wi-Fi, Bluetooth, wireless devices, microwave ovens, wearables and vehicles.
1,000 µW/m² (microwatts per square meter) = 1 mW/m² (milliwatt per square meter)
nT (nanoTesla)
The magnetic flux density unit (nT) is used to measure alternating current (A/C) magnetic field intensity, such as that from: PowerGrid background levels, fuse boxes, cables, waterpipes, home appliances, electronics, laptops, phones, wearables and vehicles.
100 nT (nanoTesla) = 1 mG (milliGauss)
V/m (Volts per meter)
A unit of measurement for electric field (e-Field) strength. Used to measure the intensity of an electric field near voltage sources such as: Cabling, power cables, power outlets, metal structures, beds, hardwired (cabled) laptops/desktop computers and connected devices. (Keyboard & mouse,etc.)
Measurement Methods
The dynamic LED window design allows for quick and intuitive monitoring across a broad measurement range, enabling users to interpret readings at a glance or even through peripheral vision—much like a Formula One race car display. This level of visual feedback is not achievable with numerical readouts alone and can be seen at a distance in both full sunlight and dark situations, making it great for the visually impaired.
There are 18 intensity levels, displayed using 9 LED lights. By matching the LED reading with the corresponding numbers on the meter's chart, numerical values can be noted.
🟩🟩🟩🟩🟨🟨🟨🟨🟥🟥
The first nine LEDs — the main working window — are the primary focus for EMF Professionals and Building Biologists when assessing the main EMF/RF exposures in typical environments. As radiation levels rise above normal conditions, the green, followed by the yellow LEDs, scale out beyond the working window, leaving only one red LED 🟥 as per chart below.
If levels exceed the meter’s limits, the LED display will max out and a high-pitch alarm will sound, with no LEDs illuminated. (Alarm can be turned off.)
RF Mode – Working Window
Most background RF levels fall within the first 9 LED lights — Our Working Window — (<50 µW/m²) unless you’re near a cell tower or strong transmitter. Ideally, you want no LEDs lit when standing outside your home, but this is increasingly rare today, even in rural areas.
For your sleeping sanctuary, aim for below 0.5 µW/m² (no LEDs), as maintaining a low-exposure environment is one of the most important steps you can take for more rejuvenating sleep.
When readings are elevated, a range of practical shielding options are available. Bed canopies, wall treatments, RF window tinting, and alloy fly screens can be applied individually or in combination to effectively reduce exposure, especially where signals are strong or arriving from multiple directions.
(NOTE: Some sensitive individuals struggle living within background levels as low as 1–10 µW/m².)
LFM Mode – Working Window
In inner suburbs, average background dynamic magnetic field levels from the power grid typically fall within the first 9-LED working window, averaging around 50–100 nT (RMS). In rural areas, or on higher levels of well-positioned high-rise apartments, levels are often below 10 nT.
Readings generally increase the closer you are to high-load overhead power lines, poorly maintained power infrastructure, or dense urban environments.
As a practical guideline, the primary objective is to maintain a sleeping environment as close as possible to 20 nT or below. For daytime exposure, background power-grid dynamic magnetic field levels should remain below 100 nT for pregnant mothers and children, and below 200 nT for adults.
Note: Recommendations are based on Building Biology guidelines and the BioInitiative Report.
LFE Mode – Working Window
Most people sleep in environments with 1–3 V/m of alternating current (AC) electric fields from household electrical wiring. In some cases—due to wiring faults, poor grounding, or continuity issues—levels can rise to 10–30 V/m, or higher in rare situations.
Importantly, these fields can remain present even when wall power points and lights are switched off.
In natural environments, these electric fields do not exist. For this reason, the primary objective is to maintain sleeping areas as close as possible to 0.3 V/m or below. For many people, achieving this requires modifying, isolating, or switching off electrical circuits supplying the bedroom.
As the Mito Meter 2.0 only measures down 1–2 V/m, best practice is to make sure there are no LED lights at least 1–2 meters from the bed.
As a general guideline, aim to maintain a low-exposure environment in areas where you spend extended periods. Electric fields at workstations and laptops can often be reduced by proper grounding of connected devices or cables. If readings fall into the red range (above 10–15 V/m), further mitigation steps should be considered. (See related post Here.)
Measurement Techniques
The Mito Meter uses super sensitive single-axis directional antennas requiring rotation in all directions/axes for optimal results. (Far more sensitive than three-axis variants.)
Move the meter around to identify the highest reading—the highest reading represents the most accurate value.
The RF and LFE antennas are located on the top left side of the device. Blocking them with your grip will reduce accuracy. For the most accurate LFE Mode (electric field) readings, hold the meter at the very end of the case by placing your middle finger on the rear-mounted alloy ground pad and your thumb on the front of the case, with your index finger supporting the meter. Then point the meter in the direction you want to measure. When using LFE Mode with the meter’s rear-mounted alloy ground pad, test readings both with and without shoes. Additionally, compare your body voltage potential with and without grounding sheets or grounding desk pads — many earthing solutions are ineffective and offer little to no protection. (See ‘EMF Basics’ for further information Here.)
Broadband Detection
The Mito Meter is a broadband meter, meaning it detects all signals within its selected frequency range at any location.
In RF mode, if a Wi-Fi router, a smart meter and a cell phone transmit at the same time, the meter captures all signals and shows a combined result.
Limitations of RF Broadband Meters
All RF broadband meters, even professional versions, tend to underreport peak RF radiation in busy areas (e.g., cities)—sometimes by up to 10×.
Real-time RF spectrum analysers with directional antennas are essential for precise signal measurements, accurately identifying individual signals, and calculating (adding up) total power levels. However, they are highly complex and extremely expensive.
All RF broadband meters over and under read at different points of their specified spectrum and why you see in the meter specifications (-/+6dB) or (-/+3dB).
Speed vs. Accuracy
Fast RF meters capture more signals in high radiation environments and can capture fast bursts of radiation which is why people often refer to "fast meters" when discussing RF measurement. The Mito Meter operates at 20,000 samples per second and capable of capturing 1-10ms on its standard RF Mode but is better detected on its RF-Xs Sound Signature mode.
Extended Modes The Mito Meter features three extended modes: RF-Xs Mode (Sound Signature), RF-X6 Mode (Six-Minute RF Monitoring), and LFM-X Mode (PowerGrid Monitor). These modes serve as additional tools for EMF screening and mitigation while also assisting professionals in remote consultations with Mito users.
RF-Xs Mode: Sound Signature
This mode helps identify the source of radiation by its pattern — or what we refer to as the RF source’s unique sound signature.
Make sure the speaker 🔊 is switch is ON and select RF Mode.
Quickly toggle the MODE switch from LFE to RF twice within two seconds. Two lights (orange and red) will start blinking.
Then move the MODE switch down to LFM and back to RF. Now move towards an RF source to listen to its Sound Signature.
RF → LFE → RF → LFE → RF ----- RF → LFM → RF
RF-X6 Mode: Six Minute Monitoring
This mode logs approximately 6 million samples over six minutes and then displays the Average and Highest Peak radiation results via the LED display, as well as gives an accumulated peak score based on the estimated peak duration time over the recorded six-minute event (See chart next page.)
Turn on the meter and select RF Mode.
Quickly move the MODE switch down to LFE and back to RF twice, within two seconds. Two lights will be blinking—one orange and one red. The meter is now recording (logging data).
After six minutes, results will be displayed as follows;
Average Peak: Slowly blinking for six seconds.
Highest Peak: Fast blinking for six seconds.
Accumulative Peak Duration: Displayed for 10 seconds.
RF → LFE → RF → LFE → RF
RF-X6 Mode: Accumulative Peak Duration Chart
Effectively, this represents your Peak Radiation Dosage. As you reduce your wireless gadgets your results will shift from red to orange, then into the green—or ideally, no results displayed at all. If you live near a telecommunications cell tower/site, TV broadcast antenna, or a radio broadcast antenna, the peak duration score will always be red.
Best results after 6 minute recording is no LED lights, especially for bedrooms.
Continuous peak radiation = increased body voltage: However, the longitudinal scalar effect at low radiation levels from short bursts or pulses over six minutes has various biological effects not present in continuous peak radiation. This is why some people struggle more with very low-level radiation than with continuous high peak radiation. Continuous peak radiation has its own set of characteristics as far as biological effects go.
LFM-X Mode: PowerGrid Monitoring
This mode monitors the power grid’s dynamic background magnetic fields. The Average and Highest AC 50/60Hz magnetic field levels are recorded and displayed on the meter’s LED lights after a 12-hour logging session.
Before you begin: Ensure the battery is fully charged.
(Only takes one hour or less to charge from flat.)
Turn on the meter and select RF Mode.
Quickly move the MODE switch down to LFE Mode and back to RF Mode twice, within two seconds. Two lights will start blinking — one orange and one red.
Move the MODE switch down one click to LFM Mode (RF → LFM).
The LED lights will sweep left to right for 20 seconds, giving you time to position the meter upright, USB socket facing down.
(Note: Unless under or over roadside powerlines, then move meter down on angle or flat at highest reading.)
Once activated, do not move, bump, or touch the meter for 12 hours, as the magnetic sensors are extremely sensitive. Stay at least 1 meter away from the meter for this logging event.
After 12 hours, the average and highest recorded AC 50/60Hz RMS magnetic field values will be displayed:
If no lights are displayed, no values were recorded, meaning no magnetic fields above 10nT were detected.
Battery Life: The device lasts up to 24 hours in LFM-X Mode — be sure to check the results before the battery runs flat.
RF → LFE → RF → LFE → RF ---- RF → LFM
Reporting & Sample Rate When in RF mode, peak radiation levels are reported, meaning each update displays the maximum (or peak) level detected since the last update.
Update Rate:
Meter LEDs: ~5 times per second
PC Software: ~2 times per second
Maintenance & Warranty
To ensure optimal performance and longevity, always keep the device away from excessive heat and humidity. Do not leave the battery on charge for extended periods—unplug the charger once the red light turns off to help preserve battery life. Avoid placing the meter in clothing pockets to reduce the risk of accidental damage from washing or water exposure. Replacement batteries are available from specialty battery stores and the Mito Shop. They typically last between 3 to 5 years.
You may also return your Mito Meter for a calibration check and/or battery replacement. Most units should still provide accurate readings after five years.
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Technical Specifications
MITO METER [EURO] | Version 1.2.07 |
RF Frequency range: | 100MHz to 8GHz (Roll off up to 10GHz) |
RF uW/m2 range via LEDs: | 0.5 to 100,000uW/m2 |
RF uW/m2 range via Software: | 0.5 to 2000,000uW/m2 |
RF measuring range in dBm: | -60dBm to +5dBm |
RF Typical accuracy: | ±6 dB |
RF accuracy @2.4GHz: | ±0dB |
LFE (Electric Field) Frequency range: | 40Hz to 50kHz |
LFE measuring range via LED/Software: | 1-2 to 1000 V/m with 1V/m resolution |
LFE Accuracy | 25% |
LFM (magnetic Field) Frequency range: | 40Hz to 15KHz |
LFM measuring range via LED display: | 10nT to 2000nT with 5nT resolution |
LFM measuring range via Software: | 1nT to 5000nT with 1nT resolution |
LFM Accuracy | 20% |
LFM Accuracy @50/60Hz | ± 5nT @70-300nT |
Sampling Rate | 20,000/sec RF Mode |
| 16,000/sec RF-X6 Mode |
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