Abstract: A device for pulsed liquid dispensing includes a feed line, a dispensing unit, and a conveying device. The dispensing unit has a rigid lance with a dispensing tube. The feed line is connected to an input side of the conveying device. An outlet connection of the conveying device is connected to the output unit. The dispensing unit includes a gripping part and a manually actuated release valve. The conveying device is a diaphragm pump, so that, once the release valve is open, the number of pump cycles correlates with the volume of dispensed liquid. This allows a predetermined amount of liquid to be conveyed without distracting the operator.