Bests & Worsts Reviews from Amazon

THIS IS MY FIRST CHRONO AND I CLOSED MY EYES AND WENT FOR IT! After spending a whole day reading reviews and watching videos of different units I bought this one. First time users of course have to experience the world of (exceptable) lighting conditions and all that comes with the dance of maintaining the right kind and amount of light above the 2 sensors so that the unit works and is accurate. As far as reviews go, check out the reviews for the higher priced units and yes you will find the same complaints regardless of price. My strategy/approach was to buy the cheapest unit I could find that had enough good reviews to indicate that the unit could work well enough to get the job done. Many people gave this basic chronograph good reviews and like the better units some complained of getting a lemon. After playing with this chrono for just a few hours ( and doing the research) I am comfortable in knowing what to look for in a chrono I believe. Fortunately this (my first ever) unit seems to work perfectly out of the box and with all types of projectiles both fast and slow. For example i have a spring loaded BB pistol that shoots at 100 FPS and have shot hand loaded bullets at over 3700 FPS with consistence accurate readings. The phone/tablet app loaded fast and worked as described (except the app will not allow for deletion of error shots without saving then editing) This unit is basic in that it will only give a readout of the speed and do no calculations UNLESS it is paired with a android/apple phone or tablet and a external source application for various computations. This I like because my eyesight is poor and I would rather have my data displayed remotely next to me. Plus I can customize my remote display device and type. The unit is well built well and is sturdy and the readout is large enough and instant. Basically just 3 functions on one switch which are OFF- feet per second- meters per second. Other than that their are 2 ports for data connection to a external device which are a usb type port and a ear phone type plug. This unit takes a 9 volt battery and the battery compartment is big enough to hold a spare battery. This unit does have a camera mount type thread receiver on the bottom for using on a tripod or other type holding set up. I feel fortunate that I bought a unit that works as advertised,of good quality, and really cheap ($69.00) Not sure if I will ever need anything more but I can understand the value and preference of having a unit that does the string calculations WITHOUT having to utilize external devices and cables so this model may not be what some need or want, especially when you can get such features for for just a few dollars more. UPDATE JULY 14 2017 Have since purchased 2 more of these units to have on hand at different locations that I travel to and have had no issues with the units as long as I set up the lighting environment adequately. I wish the unit would reset automatically after having a read error when not using the remote app.