SLT's new package of meters, just released in February 2027, is a great product for people learning how to capture and collect readings on a wide range of frequencies. Useful tools for anyone curious... See more
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We Make The Invisible, Visible. As an Electronics Engineering Technologist, Rob Metzinger – SLT’s President and Founder – became extremely concerned about the interference of man-made electromagnetic fields (EMF) on the human body. Rob’s interest in EMF began in the year 2000, and Safe Living Technologies (SLT) was founded in 2006 – a time when wireless technology was beginning to boom, and without any caution or restraint. Rob furthered his education to become certified as a Building Biology Environmental Consultant (BBEC) and an Electromagnetic Radiation Specialist (EMRS) through the Building Biology Institute. He has been an educator and course developer in the advanced studies of EMF/EMR since 2008. He strives to be a leader in the field of education and advocacy around this complex issue. An alarming number of recent studies indicate that electrosmog has negative biological impacts. See our studies page and the Bio-Initiative Report for further details. It is in our best interest to minimize exposure to these invisible forces as much as possible.
70 Watson Parkway S, Unit 6, N1L 0C3, Guelph, Canada
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Personal contact, easy to understand videos, small company that is making a very positive difference in our increasingly complex world, excellent past experience....I've been a grateful SLT customer for more than a decade.

Reply from Safe Living Technologies
Safe Living Technologies continues to provide quality products, excellent information on those products, and the staff is extremely knowledgeable and helpful. We are fortunate to have this organization as a valuable resource in helping us reduce our exposure to manmade EMFs.

Reply from Safe Living Technologies
I can't say enough great things about Safe Living Technologies and my experiences working with the team, especially Kevin. I painted most of my interior with the RF paint, shielded my windows, I have multiple equipment gadgets and just bought the RF wrist sensor...can't wait to put it into action. This is really a stand-up company. Everytime I place an order or call to discuss my goal, I have been given the upmost customer service and care. Thanks again Kevin for all your attention and hard work on all my projects!

Reply from Safe Living Technologies
The website is very easy to navigate, shipping is very efficient. And most importantly, professional quality equipment is available, in addition to the usual "lay-person" home use kind of emf detectors, that most people are looking for.

Reply from Safe Living Technologies
My meter came quickly and I am enjoying using it. Very easy to use and helpful. I am sensitive to EMFs so need to know what is going on around me. Glad I got it.

Reply from Safe Living Technologies
When I need to speak or email with someone before a purchase I'm able to receive individual service and advice. This really helps me get the correct product and the right method for shipping. I've been using SLT meters and shielding products for 4 years and love them. One meter still under warranty, had the speaker go out. They offered to replace it. Thank you Safe Living Tech!

Reply from Safe Living Technologies
Very much appreciate swift resolution for an issue created by the shipping carrier...thank you Zachary!

Reply from Safe Living Technologies
The shipment arrived in time and surprised the builder.
Thank you for your outstanding professionalism.

Reply from Safe Living Technologies
I enjoy learning about all the dangers of the modern technologies.
I enjoy being informed when rebates are possible.
But I can't say that everything is always perfect like the last time when I bought 2 rolls of clear film because I did not know I could buy the exact number of inches instead of paying for a surplus that I am not ready to use at the present moment.

Reply from Safe Living Technologies
Great price with coupon, fast shipping, great product. Satisfied overall.

Reply from Safe Living Technologies
I had the good fortune to meet the entire staff in person at their headquarters in Guelph, Ont. They were all friendly, easy to engage, knowledgeable and eager to share the knowledge. A great experience and a great company to have as a partner with the growing health challenges posed by EMF!

Reply from Safe Living Technologies
Fast and efficient!!! Beautiful fabric, changed my bedroom in a luxury hotel :)

Reply from Safe Living Technologies
Hi, rating is 2 stars because i have yet to receive shipment notification since I placed the order on September 2. Payment made is via paypal. I would appreciate if someone can get back to me on this. Order #143206. Thank you.

Reply from Safe Living Technologies
SLT always gives impeccable service. They are efficient and professional and I would never buy any of my meters from anyone else.

Reply from Safe Living Technologies

Reply from Safe Living Technologies
Provided helpful and complete information on available products. Made ordering process easy. Shipped promptly.

Reply from Safe Living Technologies
Very fast shipping and delivery - RF detector arrived in good condition and was packaged well - received with batteries installed and worked great as received

Reply from Safe Living Technologies
I've purchased from Safe Living Technologies many times. I've always had good experiences. This time I was able to purchase a rather obscure product that I could not find listed for sale anywhere -- a charger for my trusty NFA-1000.
I also bought the NFA-1000 from Safe Living Technologies. I'm an electrically sensitive consumer (not a professional). So of course I've tried the other consumer and professional e-fields meters. The readings I got were unpredictable and not accurate enough for me. I realized the problem was largely that these lesser e-fields meters are all single axis, so to use them properly you need to measure three times, with the meter at three different angles.
Even though the NFA-1000 meter is expensive, it makes measuring e-fields so fast and accurate that I can now pull off more complex ways of lowering e-fields in my environment. I also used it to find my current home -- during a home visit these days, you often just do not have time to mess around with single axis meters.

Reply from Safe Living Technologies
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