From PSWPOWER
KT-LCD2 E-Bike LCD Meter for KT Series Controllers. It only fits KT series controllers. It is not suitable for other controllers.
Note: How to determine the value of the parameter P5 ? The formula is LVC+P5/3.77.
For 24V battery, LVC=20V, P5/3.77=1.
For 36V battery, LVC=30V, P5/3.77=1.5.
For 48V battery, LVC=40V, P5/3.77=2.
You can adjust P5 parameter by your own battery discharge curve.
It is a smart LCD. You can not test it by only voltage. You need to install it on your E-Bike and pedal for 3-5 seconds. Then the LCD will show battery level normally.
water proof Cable Length: 22cm+160cm=182cm