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pen test Customers Reviews

  • Very good product

    posted by vhdasg

    The product is fairly accurate, but you must calibrate it before use.Accompanying substances with ph known for calibration.
    The original batteries lasted enough, then switched to the rechargeable.Maybe if the plastic can be unmounted, it should be easier to be cleaned.
    For the price, it´s the best choice for who need to measure a ph of some substance, in my case, it´s used to check the ph of my beer.
  • 4-Digit LCD High Precision PH Meter

    posted by wreibeling

    This item is really easy to use, small and compact.It is very easy to set up, all you have to do is go buy a bottle of de-ionised water from your chemist, the buffer chemicals for calibration are supplied.Very accurate and sensitive.Solid and quality construction.
    Arrived decently packaged and safely.I can't fault it, it just works ... well!!
    Cost effective and very useful.A worthwhile purchase. I would recommend getting this item.
  • Excelent tool

    posted by Me5htar

    It's an excellent tool for electric troubleshooting. Auto-range is fast and very handy. The measurement is very fast and precise. It has power detect feature, that detects presence of power in near proximity of the tip (without making contact), the sensitivity can be adjusted. The tip is very sharp and it can be retracted into the tool with twist-motion.It comes with nice carry pouch that can be attached to the belt. It has data hold and max function so you can make measurements in inaccessible places easily.
    It has 4 buttons, but most important buttons for range and function are combined, and less important hold and max buttons are larger. It should be other way around.
    It's a great tool for Electric engineer, its small enough and good for automotive, or house electric repairs. Does what it's supposed to do very good !
  • MASTECH MS8211

    posted by 87879

    It's an excellent tool for electric troubleshooting. Auto-range is fast and very handy. The measurement is very fast and precise. It has power detect feature, that detects presence of power in near proximity of the tip (without making contact), the sensitivity can be adjusted. The tip is very sharp and it can be retracted into the tool with twist-motion. It comes with nice carry pouch that can be attached to the belt. It has data hold and max function so you can make measurements in inaccessible places easily.
    It's a great tool for Electric engineer, its small enough and good for automotive, or house electric repairs. Does what it's supposed to do very good !
    Perfect for me (as a second one) to protect another one that make only very accurate measures (a $600 one).
  • Good for detecting EMF "Hotspots"

    posted by CharSiu

    Compared with more expensive Electromagnetic Radiation Detectors I find this relatively inexpensive product to be excellent for determining where there are EMF "hotspots" caused by electrical wiring and electrical and electronic apparatus and gadgets in the home.It is as sensitive as claimed in the Specifications.
    My order was dispatched promptly and arrived in the UK within two weeks.The specs.(in English) may be found below the Deal Extreme online advert.
    I would recommend this handy detector to anyone who wishes to check for Electromagnetic Radiation around the home.It is true to the specs. shown in the Deal Extreme online "Overview" [Detect range: >=50uw/cm2- Frequency range: 50~500Hz]

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