No, it fits about 99% of electrical smart meters mounted on utility boxes. The glass portion of the smart meter will vary in size depending on the manufacturer. All smart meter mount to the utility box with a metal ring which is about 7 ¼ in diameter. The Smart Meter Guard actually mounts to the metal ring at the base of the smart meter, not the glass portion. That metal ring is the same size on all smart meters in the US and Canada. Also, the Smart Meter Guard does not fit water and gas smart meters. It was designed specifically for electrical smart meters. We make the Gas Meter Guard product to block RF emitted by smart water and gas meters. Type 1 and 2 where the metal ring is visible on the outside of the utility box. Type 3 where the metal ring at the base of the smart meter is covered by the metal lid of the utility box. Only about 4% of the utility boxes are Type 3. The Smart Meter Guard requires a rubber “spacer” to fit the Type 3 utility boxes. Spacer is free with any request.
The only way to measure RF power density is to use a High Frequency analyzer tuned for the 900 MHz range. The analyzer will measure the power density being emitted from smart meters. It’s important to remember these tips when measuring for RF from smart meters:
- First, it’s very important to understand that smart meters transmit the RF in very short pulses, about 0.5 seconds long about every 20 to 40 seconds. They never transmit a constant signal. This means you need to measure for a several minutes to catch the pulse on the analyzer you are using. Some smart meters transmit more than other while some less frequently than others. The key is to stand there and catch it when it transmits.
- Make sure you are not closer than three feet to the meter when measuring. The analyzers are not accurate being too close. It has to do with the wavelength at these frequencies.
- Make sure you don’t have a cell phone on or near you. The analyzer will pick that up.
- Same with WiFi routers, make sure you are not near one. If you measure a constant RF signal it’s more than likely a router because they transmit all the time and smart meter pulse their transmission.
- Also, make sure you are not near another smart meter. You could be picking that signal up as well. You shouldn’t be closer than 60 feet from another smart meter.
- If you are using the HF 35C meter make sure it is set to measure “Peak” power not “RMS”. Also, the HF 35C highest reading is 1,999 uW/m2 (micro watts per square meter) and smart meters emit 30,000 to 70,000 uW/m2. This means when you measure your HF 35C will flash the number “1” meaning the power density you are measuring exceeds what the meter can read. If you want to extend the range, you need to get a 20 db attenuator. This extends the range from 1,999 to 199,000 uW/m2. Most people don’t need this because once the Guard is installed it will be in the range the meter can read.
- If you are using a TriField, which we don’t recommend because it’s not very accurate meter, make sure you have it set to measure “Radio/micro watts”, not “Gauss”.
- Most smart meters emit between 30,000 and 70,000 microwatts per square meter, uW/m2, in short pulses. If you are getting a constant reading you may be picking up ambient RF, if it’s a low reading, or someone else’s router. Smart meters produce a short high power pulse of RF power and you’ll see your analyzer jump when it transmits.
- Again, most smart meters emit between 30,000 and 70,000 uW/m2 . The Smart Meter Guard will block about 98% to 99% of the RF which means if you are reading 600 to 1,400 uW/m2 you have reduced your exposure by 98% to 99%. It is almost impossible to block 100% of the RF emissions and if someone says you can they most likely do not understand RF and how it works.
Does high frequency radiation cause health problems?
- First, it’s very important to understand that smart meters transmit the RF in very short pulses, about 0.5 seconds long about every 20 to 40 seconds. They never transmit a constant signal. This means you need to measure for a several minutes to catch the pulse on the analyzer you are using. Some smart meters transmit more than other while some less frequently than others. The key is to stand there and catch it when it transmits.
- Make sure you are not closer than three feet to the meter when measuring. The analyzers are not accurate being too close. It has to do with the wavelength at these frequencies.
- Make sure you don’t have a cell phone on or near you. The analyzer will pick that up.
- Same with WiFi routers, make sure you are not near one. If you measure a constant RF signal it’s more than likely a router because they transmit all the time and smart meter pulse their transmission.
- Also, make sure you are not near another smart meter. You could be picking that signal up as well. You shouldn’t be closer than 60 feet from another smart meter.
- If you are using the HF 35C meter make sure it is set to measure “Peak” power not “RMS”. Also, the HF 35C highest reading is 1,999 uW/m2 (micro watts per square meter) and smart meters emit 30,000 to 70,000 uW/m2. This means when you measure your HF 35C will flash the number “1” meaning the power density you are measuring exceeds what the meter can read. If you want to extend the range, you need to get a 20 db attenuator. This extends the range from 1,999 to 199,000 uW/m2. Most people don’t need this because once the Guard is installed it will be in the range the meter can read.
- If you are using a TriField, which we don’t recommend because it’s not very accurate meter, make sure you have it set to measure “Radio/micro watts”, not “Gauss”.
- Most smart meters emit between 30,000 and 70,000 microwatts per square meter, uW/m2, in short pulses. If you are getting a constant reading you may be picking up ambient RF, if it’s a low reading, or someone else’s router. Smart meters produce a short high power pulse of RF power and you’ll see your analyzer jump when it transmits.
- Again, most smart meters emit between 30,000 and 70,000 uW/m2 . The Smart Meter Guard will block about 98% to 99% of the RF which means if you are reading 600 to 1,400 uW/m2 you have reduced your exposure by 98% to 99%. It is almost impossible to block 100% of the RF emissions and if someone says you can they most likely do not understand RF and how it works.
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