15L Knapsack Sprayer with Bluetooth

The 15L Knapsack Sprayer with Bluetooth by Crosstec is a professional-grade battery-powered agricultural spraying solution designed for orchards, farms, plantations, vineyards, and sanitation operations. It integrates Bluetooth remote control technology with a diaphragm pump system and DeWalt 18V battery compatibility, delivering higher efficiency and reduced labor cost for large-area spraying tasks.

This model is widely selected by agricultural equipment wholesalers, OEM buyers, farm supply distributors, and importers looking for a reliable battery knapsack sprayer supplier with stable performance and smart control features.

Key Features & Benefits

Bluetooth Smart Control System

The integrated Bluetooth control function allows operators to manage spraying functions remotely, improving workflow efficiency and reducing manual operation fatigue. It is especially useful for large farms and orchard spraying where continuous operation is required.

• Remote start/stop control via Bluetooth
• Improved efficiency for large-area spraying
• Reduced manual operation frequency

DeWalt 18V Battery Compatibility

This 15L Knapsack Sprayer with Bluetooth is compatible with 18V DeWalt lithium batteries, allowing users to utilize existing power tool batteries without additional investment.

• Compatible with DeWalt 18V battery platform
• Cost-saving for professional users and distributors
• Stable power output for long working cycles

Stable Diaphragm Pump Performance

Equipped with a high-efficiency diaphragm pump, the sprayer delivers consistent pressure output and uniform atomization, ensuring effective chemical application across crops.

• Stable pressure for even spraying
• Suitable for pesticides, fertilizers, and disinfectants
• Reduced maintenance compared with traditional pumps

15L Industrial-Grade Tank

The 15-liter tank is made from high-strength polypropylene (PP), providing excellent resistance to corrosion, UV exposure, and agricultural chemicals, making it suitable for long-term field use.

Ergonomic Backpack Structure

Designed for professional agricultural workers, the backpack system reduces operator fatigue and improves comfort during long spraying operations.

1. Core Differences

2.1 Adjustment at Your Fingertips – No Extra Motion

Traditional knob:  Want to adjust flow? Stop → bend or squat → find the knob on the lower body → turn it → straighten up → continue walking.  5–10 seconds per adjustment, severely interrupting workflow.

Bluetooth handle speed control:  The spray gun is always in your hand, thumb naturally rests on the +/- buttons.  Adjust while walking – flow changes instantly.  No stopping, no looking down, no posture change.

Clear efficiency gain:  50 adjustments per day – traditional method wastes 5–8 minutes on "bending to find the knob." Bluetooth handle speed control converts those 5–8 minutes  completely into productive spraying time.

2.2 No Need to Look Down – Always Eyes on Target

Traditional knob:  Every adjustment requires  looking down to locate the knob . When you look back up, you may have missed a section of crop, or the spray gun direction may have shifted.

Bluetooth handle speed control:   Eyes stay on the crop or spray surface at all times.  Thumb operates +/- buttons blindly – spray gun direction unchanged, spraying continuous without interruption.

Advantages:

Reduced missed or overlapping spray areas

Improved spray uniformity

Lower safety risk (especially when working near roadsides or ditches)

2.3 Real-Time Tactile/Audible Feedback – You Always Know Where You Are

Traditional knobs have no feedback – how much have you turned? What setting are you on? You can only guess or look back.

Bluetooth handle speed control typically includes the following feedback methods:

Advantages:

Confirmation with every press – no need to look at a screen or knob

Zero-error blind operation

Clear alerts when reaching min/max limits – no wasted adjustments

2.4 Hands Work Together – Spraying and Adjusting Simultaneously

Traditional knob:  During adjustment,  one hand must leave the spray gun  to turn the knob – spraying stops. If the other hand is holding the hose or pushing aside branches, things get even more chaotic.

Bluetooth handle speed control:   Spray gun never leaves your hand.  Thumb adjusts while index finger continues pulling the trigger. If you need to push aside branches, your other hand is free to help – unaffected.

Typical scenarios:

Orchard worker: one hand pushes aside dense foliage to expose fruit clusters, the other hand holds the spray gun for precise application – while adjusting flow to match different branch densities

Disinfection worker: one hand pushes the sprayer, the other holds the gun – adjust while walking, no need to put down the gun

2.5 Adapts to All Hand Types and Working Conditions – All-Day Comfort

Advantage:   True ergonomic design  – the machine adapts to the hand, not the other way around.

2.6 One-Touch Preset/Memory Function (Advanced Models)

Some Bluetooth handles support two or three preset settings, for example:

Short press "+"  : stepwise flow increase

Long press "M"  : save current flow as preset

Double press "M"  : switch to preset mode

Advantages:

One-touch switch between "fine mist mode" and "jet stream mode" – no need to step through gradually

Multiple users sharing one sprayer – each can save their own preferred settings

Quick recall of parameters for different crops or seasons

3. Scenario Comparison: Which Is Right for You?

4. Summary Comparison Table

5. One-Sentence Conclusion

Traditional knob makes you "stop → bend → look → turn → straighten → continue." Bluetooth handle lets you "adjust while walking." The former is physical labor; the latter is instinct. If you adjust flow more than 20 times per day, Bluetooth handle saves not just time – but also your back and your fingers.

Product Details

Application Scenarios

The 15L Knapsack Sprayer with Bluetooth is widely used in both agricultural and commercial sectors:

• Fruit orchards and vineyards
• Vegetable and greenhouse farming
• Weed control and crop protection
• Fertilizer and pesticide application
• Landscape maintenance and garden care
• Public sanitation and disinfection projects

Why Choose Crosstec

Crosstec is a professional manufacturer specializing in lithium battery sprayers and intelligent agricultural equipment. With over 10 years of production experience and more than 50 patents, Crosstec has become a trusted agricultural sprayer manufacturer and OEM supplier serving global distributors and importers in over 150 countries.

• 50+ patented sprayer technologies
• Bluetooth smart control innovation
• DeWalt battery-compatible platform design
• ISO9001, TUV, SGS certified factory
• OEM / ODM customization support
• Global export network in 150+ countries

Frequently Asked Questions (FAQ)

1. What is a 15L Knapsack Sprayer with Bluetooth used for?

It is used for agricultural spraying tasks such as pesticide application, fertilizer spraying, weed control, and crop protection in orchards, farms, and plantations.

2. How does the Bluetooth function improve operation?

Bluetooth control allows remote start and stop of the sprayer, reducing manual operation and improving efficiency during large-area spraying tasks.

3. Is this sprayer compatible with DeWalt batteries?

Yes, it supports 18V DeWalt lithium batteries, allowing users to reuse existing power tool batteries for cost efficiency.

4. What are the advantages of the diaphragm pump system?

The diaphragm pump provides stable pressure, consistent atomization, and long service life, making it suitable for professional agricultural use.

5. Is the 15L tank suitable for commercial farming?

Yes, the 15L capacity is designed for medium to large-scale farming operations, balancing portability and working efficiency.

6. Does Crosstec support OEM or wholesale supply?

Yes, Crosstec offers OEM, ODM, and wholesale services including branding, packaging customization, and technical specification adjustments for global buyers.