Absima SR4S 4 Channel 2.4GHz RC Stick Radio with Receiver AB2000022

The Absima SR4S is a four-channel 2.4GHz stick radio system for RC drivers who prefer traditional joystick-style steering and throttle control. Using the AFHDS 2A radio protocol, it combines an ergonomic transmitter with the included waterproof R4WP receiver. Steering and throttle trims, servo reversing, steering dual rate and two auxiliary toggle-switch channels make it a practical choice for compatible RC cars, trucks and boats.

Features

• Four-Channel Radio System: Provides steering, throttle and two auxiliary control channels for compatible RC models.
• Traditional Stick Controls: Dual joystick-style controls offer an alternative to pistol-grip steering wheel transmitters.
• 2.4GHz AFHDS 2A Technology: Digital radio communication supports reliable control with a compatible AFHDS 2A receiver.
• Waterproof R4WP Receiver Included: Four-channel mini receiver is designed for suitable RC environments where water exposure may occur.
• Servo Reverse Function: Allows individual channel directions to be reversed to suit the vehicle's steering and control linkages.
• Steering and Throttle Trim: Adjusts steering centre and throttle neutral position without mechanical linkage changes.
• Steering Dual Rate: Allows the steering servo travel range to be reduced or adjusted for vehicle setup.
• Auxiliary Channel Switches: Channels 3 and 4 are operated by separate toggle switches for compatible auxiliary functions.
• Low-Voltage Warning: Transmitter alerts the operator when supply voltage falls below approximately 4.2V.
• Lightweight Ergonomic Housing: Slim design is intended to remain comfortable during longer driving sessions.
• Four-AA Battery Operation: Transmitter operates from four standard 1.5V AA batteries, reducing battery requirements compared with some larger radio systems.
• Receiver Binding Accessories: Includes a binding plug and aerial tube for radio system setup and installation.

Specifications

• Brand: Absima
• Model: SR4S
• Manufacturer Part Number: 2000022
• SKU: AB2000022
• Barcode: 4250650959241
• Product Type: RC Stick Radio Transmitter and Receiver Set
• Control Style: Dual Stick
• Number of Channels: 4
• Radio Frequency: 2.4GHz
• Transmission Protocol: AFHDS 2A
• Steering and Throttle Trim: Yes
• Servo Reverse: Yes
• Steering Dual Rate: Yes
• Auxiliary Channels: Channels 3 and 4 via Toggle Switches
• Transmitter Operating Voltage: 6V DC
• Transmitter Batteries: 4 x 1.5V AA
• Low-Voltage Alarm: Below 4.2V
• Transmitter Operating Temperature: 0°C to 60°C
• Transmitter Dimensions: 190 x 174 x 89mm
• Transmitter Weight: Approximately 320g
• Included Receiver: Absima R4WP
• Receiver Part Number: 2020012
• Receiver Channels: 4
• Receiver Protocol: AFHDS 2A
• Receiver Operating Voltage: 4.8V to 7.4V DC
• Receiver Construction: Waterproof
• Receiver Dimensions: 35 x 30 x 13mm
• Receiver Weight: Approximately 15g
• Receiver Aerial Length: Approximately 260mm
• Application: Compatible RC Surface Models

Includes

• 1 x Absima SR4S Four-Channel 2.4GHz Stick Transmitter
• 1 x Absima R4WP Four-Channel Waterproof Receiver
• 1 x Receiver Bind Plug
• 1 x Receiver Aerial Tube
• 1 x User Manual

FAQ

Does the Absima SR4S include a receiver? Yes. The radio system includes an Absima R4WP four-channel waterproof mini receiver, along with a bind plug and aerial tube.

What batteries does the SR4S transmitter need? The transmitter requires four 1.5V AA batteries, which are sold separately. The receiver must be supplied with appropriate power from the vehicle's compatible BEC or receiver battery.

Can the SR4S control more than steering and throttle? Yes. Channels 3 and 4 are operated through two toggle switches and can be assigned to compatible auxiliary functions. These are switch-operated channels rather than additional continuously proportional sticks.

Will the SR4S work with any 2.4GHz receiver? No. The SR4S uses the AFHDS 2A protocol. It requires a compatible receiver, such as the included R4WP, and cannot be assumed compatible with other brands' 2.4GHz radio systems.

Is the entire SR4S radio system waterproof? The included R4WP receiver is specified as waterproof. The handheld transmitter is not advertised as waterproof and should be protected from rain, splashes and immersion.

Important Notes

• Requires four AA transmitter batteries, which are not included.
• Designed for compatible RC surface vehicles. Check suitability and regulatory requirements before using with other model types.
• The included receiver operates from 4.8V to 7.4V DC. Confirm the voltage supplied by the vehicle's ESC BEC or receiver battery.
• The transmitter and receiver must use compatible AFHDS 2A communication.
• Auxiliary channels 3 and 4 are controlled by toggle switches.
• Waterproof receiver construction does not make the transmitter, servos or other vehicle electronics waterproof.
• Servos, electronic speed controller, receiver battery and complete RC vehicle are not included.
• Follow the binding procedure and perform a steering, throttle and range check before driving.