Caldwell Ballistic Precision Chronograph with FPS and MPS Readings, Sun Screens and Large LCD Screen for Range Shooting

Excellent bit of kit and a must for all air gun owners. Good quality, easy to use and a great price.

I needed a chronograph that I could use for both rifle shooting and archery and this fits the bill perfectly. And you don`t need an app on a smartphone to use it either unlike some other makes of chrono, but it can be used with the app if you prefer. Comes with a nice zip up bag for storage too.

The package has two sensors one at the front and one at the back which sense the movement across the device, the software checks the order the sensors are tripped and measures the time between the two trigger points. Having used it with a number of different bows and archers the device is susceptable to interference measuring speeds in excess of 400ft per sec (that is 272 mph) for an arrow from a recurve bow from one archer and then reading a similar arrow shot by a second archer on the same bow at around 170 ft per second which is much more likely (that is 115 mph). It also records a number of shots as errors due one of other sensor failing to trigger, again down to the way the archer was shooting. I suspect fitting the shields over the two sensors is more essential than suggested by the manual as we had the variable results when shooting under cover. To connect to a smart phone they supply a long cable that plugs into the microphone and headphone socket. I use a Samsung and it works well, however one reason that many people say it doesn't work is the cable that they supply. The connector has an extra layer of plastic that prevents the plug fitting the phone socket. A sharp knife is all you need to make sure the plug will fit by removing the extra layer of plastic, around the main connector, that prevents the plug from connecting properly with the phone. Overall the unit appears well made but the unit can produce bad results if the conditions are not right. I also picked up a second unit sold cheaply for spares, after a quick check of the innards the unit was restored to operation by re soldering the cables connecting one of the sensors so quality control of older units may not be as good as current ones.

Great product the unit works fine but some of the reviews on here I feel are unfair as its probably human error!! Note* on android after installation go to settings- apps- cadwell-permissons- enable all mic,camera etc and make correct use of the sun shades and use in light conditions..

The item is Faulty, i came to use it for the first time on Sunday 23rd June and it didn't work , it just doesn't show any readings at all when the pellet passes through , unfortunately for me i was out of the return period, as the packageing was in new condition and not damaged at all and i understand this is of a Quality product i didn't worry that it may be faulty , I jus wasn't ready to try it until yesterday , i'am really disappointed and out of pocket .

This is an excellent Chronograph and it's of good quality.

Very well made and solid chronograph but very picky on lighting conditions. Forever getting err2 and err3 followed by no response at all resulting in having to switch off and then on again to reset it. I had to make up some light strips to get it to "see" my pellets, easy to do but hassle some people may prefer to do without, still getting errors 2&3 quite often too! Think cautiously before purchasing as to whether to spend the extra on the FX Radar (no lighting problems on that)!! 3 stars for build quality only

Works absolutely perfect...used the jack plugs (cable length about 5m) to my android fone...downloaded the app.... boom...job done...does exactly what it suppose to do...for this price...can't go wrong...highly recommend...also delivered 6 days ahead of ETA