First of all, make sure that the outlet of your motor is 9 pin waterproof plug,and motor is brushless hub motor

E-Bike LED Display Meter Waterproof Connector
--ON/OFF function of power supply, it will automatically shut down after standby for 5 minutes;
--Four-bit intelligent power display can be a true reflection of the state of battery charge to guarantee the riding distance;
--Five-gear of high, middle and low imposed torque boo-st switch gears and gear indicator display, with gear memory function, power on can automatically recover the gear state during power off;
--Under-voltage indication function, when the battery is in under-voltage, the under-voltage indicator flashes;
--The headlight switch control function, and it can turn on and off lights, when headlights are turned on, the headlight indicator is lit;
--The adoption of five-line of digital communication is with a self-setting function of versatile parameters, users can adjust the settings such as motor parameters, velocity parameters, speed parameter according to different models;
--The instrument is with good interchangeability, and different instruments can directly exchange with each other and copy the data parameters;
--Supply voltage of 24V, 36V, 48V can be automatically identified and compatible;
Material: ABS
Colour: black

Thumb Throttle
Description:
Smooth design makes it easy and convenient to control. Premium ABS material makes it wear resistant and impact resistant.
Waterproof plug design makes it resistant to water to extend service life. Lightweight and compact design makes it easy to store and carry.
Made of high quality ABS material, it is durable.
The length of the product is 6cm, the width is 3cm, and the height is 4.75cm.
It is suitable for e-bike and mountain bike.
Material: ABS
Features: Lightweight, Compact, Waterproof Joint
Size Details:
Size: 6cm x 3cm x 4.75cm/2.36" x 1.18" x 1.87" (Approx）

PAS
Type :BZ-4(8) 8 magnent PAS
Voltage :36V,48V
Color :Black
Weight :50G
Magnet :8 Magnets
Cable Length :80cm including the connector
Plug :3 Pin Connector
Type :Female to male cable(3 Pin)
Cable Length :80cmincluding the connector
Brand:JULET

115PDD Cut Off Power Brake
Material:Aluminum Alloy
Installation:Left/Right
Size :L156mm W105mm H34mm
Voltage :12V 24V 36V 48V 60V 72V
Color:Black
Weight:300G
Cable Length: Waterproof 2pin/3pin 25cm including the connector
Plug:3 Pin Connector
Waterproof :IP76
Wiring :TWO Core Wiring

1T4 cable
Cable length: about 1750-1800mm

Package including: 48V/36V 22A Controller +PAS+Display+1T4 Cable+Thumb Throttle+Brake Cut Off