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SR20 Multi-Function Smart Air Pump

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Overview

The SR20 is a multi-function smart air pump that combines inflation, pressure measurement, and emergency lighting in one compact device. Built with a high-performance DC motor and a precision pressure sensor, it quickly inflates car, motorcycle, and bicycle tires, as well as sports balls. The digital display shows real-time pressure and automatically stops at your preset value to prevent over-inflation. With dual-color LED emergency light, Type-C and DC 12V dual charging, and multiple safety protections, the SR20 is your reliable companion for daily commutes and outdoor adventures.

Key Features

  • 5-in-1 Smart Modes: Car, Motorcycle, Bicycle, Ball, and Custom

  • 150PSI High Pressure: 20L/min airflow for fast inflation

  • Digital Display with Auto-Stop: Real-time pressure reading and automatic stop at preset value

  • Dual Charging Options: Type-C port and DC 12V car charging

  • Dual-Color LED Emergency Light: White work light and red warning light

  • Multiple Protections: Reverse polarity, overheat, over-voltage, and over-current protection

  • Compact & Portable: 162×73×49mm, easy to store in your vehicle

  • 2-Year Warranty: Reliable quality and after-sales support


Specifications

ItemParameter
ModelSR20
Battery Type18650 Lithium Battery
Battery Capacity2000mAh × 3S, 11.1V 22.2Wh
Type-C Input5V 2A
DC Input12V 7.5A Max
Type-C Charging Current500mA
Inflation ModesCar / Motorcycle / Bicycle / Ball / Custom
Motor Power70W
Airflow20L/min
Max Pressure150PSI
Cylinder Diameter19mm
Cylinder QuantitySingle
Emergency LightWhite Work Light / Red Warning Light
ProtectionsReverse Polarity / Overheat / Over-Voltage / Over-Current
Pressure UnitsPSI / BAR / KPA
Operating Temperature-10℃ to +35℃
Operating Humidity20% to 85%
Storage Temperature-10℃ to +35℃
Storage Humidity10% to 95%
Product Dimensions162 × 73 × 49mm
Warranty2 Years

Operating Instructions

1. Inflation

Note: The product is preset to transport mode at the factory. Before first use, connect a charger (Type-C or DC port) to deactivate transport mode.

  • Screw the air hose onto the air outlet. Select the appropriate nozzle for your equipment and connect it.

  • Press the Power button to turn on. Press again to enter inflation mode.

  • Press the Mode button to select Car, Motorcycle, Bicycle, Ball, or Custom mode.

  • Use the +/- buttons to adjust the preset pressure. Press the Power button to start inflation.

  • During inflation, press the Power button again to stop.

  • When powered on and the hose is connected, the display shows the current pressure.

  • Inflation stops automatically when the preset pressure is reached.

  • Press and hold the Mode button for 3 seconds to switch between PSI / BAR / KPA.

Safety Tip: Always check the required pressure for the item being inflated to avoid over-inflation and bursting. The allowable pressure range for car, bicycle, and motorcycle tires is marked on the tire sidewall. Recommended car tire pressure is usually on the driver’s side door jamb. Inflation pressure varies with load. For detailed recommendations, refer to the equipment manual.

2. Emergency Light

Press and hold the Emergency Light button to turn on. Short-press to switch between white work light and red warning light. Press and hold again to turn off.

3. Charging

Connect the charging cable to the Type-C port. The display shows “IN” and real-time battery level. The percentage flashes during charging. When fully charged, it shows 100%.

4. Pressure Calibration

If the display shows a non-zero pressure when no hose is connected after power-on, calibrate as follows: Press and hold both “+/-” buttons until the pressure value resets to 0. Calibration is complete.

5. Battery Maintenance

The product contains a built-in lithium battery. If not used for a long time, fully charge it every 3 months.

Safety Warnings

  1. Do not store or use the product in high-temperature, strong magnetic, or humid environments.

  2. Improper use may damage the product or endanger personal and property safety.

  3. Avoid strong physical impact, including hitting, throwing, stepping, or crushing.

  4. We assume no liability for consequences or legal responsibilities caused by improper use in violation of the manual.

  5. Disassembly by non-professionals is strictly prohibited.

  6. Not for use by children. The unit generates noise above 70dB during operation. Keep a safe distance and use personal protection.

  7. During prolonged continuous inflation, the main unit and hose may become hot. Allow to cool to room temperature before further use.

  8. The built-in DC motor may generate sparks during operation. Do not use in flammable or explosive environments.

  9. Use in a dry, clean environment. Sand and dust may cause damage. The product is not waterproof. Do not rinse with water.















Tel:+852 9819 0910

     +86-755-2359 2816

Email: cs@spkstar.com

           sales@spkstar.com

Company Add: Unit 5 ON 9/F,Fortune Commercial Building,No.362 Sha Tsui Road,Tsuen Wan New Territories,Hong Kong

Factory Add: 201,2nd Floor,Building 4, Huafeng High-tech Park, No.10 Songgang East Road, Dongfang Community, Songgang Street, Baoan District, Shenzhen, China 518105






SPK GROUP LIMITED was founded in 2005, producing rechargeable batteries chargers, power supplies, car chargers, USB cables, home use beauty equipment,portable solar power station,portable jump starter and specializing in integration researching, production, sale and service, and is a Sino-foreign joint venture……

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