The Samsan Korea 40L4 sprayer is ergonomically designed to confirm to the human hand push, easy to operation. The sprayer comes with a mini-diaphragm pump which is compact in size, lightweight, creates high pressure and has extended service life. It features a pressure protection switch (micro switch) to protect the battery. The supplied charging socket can be used as a 12 Volt power supply in addition to a charging unit. Special charger features intelligent three suction charging (constant current/constant voltage/maintenance) or traditional transform charger. The sprayer is highly-efficient sprayer, suitable for controlling pests in crops, flowers and gardens. Epidemic controlling of livestock and poultry house and sanitation of public places. This sprayer can be operated continuously for up to 4 – 5 hours and spray 400 litre – 500 litre of liquid after one full charging which consume only 0.3kWh – 0.5 kWh of electricity.