BestDealUK Servo Tester CCPM Consistency Master Checker 3CH 4.8-6V

I've now got two of these but I don't use them on servos, they seem to work quite well on items such as the (Brushless Motor Speed Controller Control RC BEC ESC), you need no other power supply, just plug the small socket from the ESC into the top one of the servo plugs, switch on the power and remember to turn the control knob to minimum, all ESC units have a soft start and will therefore only start with the knob at minimum !I use one of these with a 1200 watt brushless motor, on a tool grinder, the actual Potentiometer can be removed from the board and the leads extended if required, and for this price you just can't go wrong !

I put off reviewing this until I could do some measurements. For those interested:Period: 20mS (50Hz)Pulse (min): 0.9mS (4.5%)Pulse (max): 2.1mS (10.5%)Neutral: 1.5mS (7.5%)Entirely in keeping with Wikipedia description of servo control signals,which suggests typical full range approx 1mS to approx 2mS, servo dependant.All of which means it's the servos I'm not impressed with so I'll be off to review them next.

Great little device in a cheeky blue wrap-around cardboard shell. Very handy, in-fact, essential bit of kit for testing/setting servos and ESCs. Power from ESC or even a lipo cell (I use a couple of pins from the balancer lead if I need to...). Couldn't do without it, and for less than £2 including delivery, it was a no-brainer. Item came from China no probs, took a while but I was in no hurry. If you're into RC, you need one of these in your toolbox!

This is to replace one I had that was very useful being able to test and centre servos without the need of setting up the transmitter but this one has not arrived yet so not impressed.

Good, It worked well, has sweep mode, I have given them 5 stars even though they are a little flimsy as they are also very cheap, The outer case is thin plastic around a circuit board.Be gentle with it and it will last some time.

Excellent servo tester. But you have to know what you are doing. As usual with this cheap Chinese manufacture no paper instructions are supplied. Thankfully there are a few utubes on how to use it.

Simple construction and easy to use. Just buy one for the price. You can’t really go wrong. People complaining about how long it lasts and it’s flimsy construction, if you look after it shouldn’t give you any problems but for less then a £1! Just buy another

Works well and is very convenient. However, the outer case is thin cardboard and this lets it down. Also the LED lights are exceptionally bright so I've put tape over them to dim them down. The text for polarity idendification is rather small. All things considered, it's still good value and I'm glad to have it in my tool box.