I have just installed some Docasa DCS-BS02W non-electric water bidets in my residence's toilets. Each set of them cost only RM175 (or RM185.50 after GST).
This type of water bidet spray is pretty simple in design, and does not need to use electric to function. Just affix it onto the toilet bowl and attach its pipe to the existing water inlet of the water tank, and it is ready to function.
Its nozzle is able to spray water at the pressure of 0.05 MPa to 0.8 MPa, and its spraying angle is adjustable.
This Docasa DCS-BS02W is very easy to use. It has a level to adjust the high/low angle of water spray, and a big knob which clockwise is to spray the water at different intensity, and anticlockwise is a self-cleaning function whereby water is flowing down instead of spraying out.
This kind of water bidet is very popular in Japan, Taiwan and some other places. Normally they are electrical which can heat up and supply warm water, and the price is quite expensive. Although this Docasa DCS-BS02W is not able to heat up water, it is non-electric and very easy to install, and its price is much more affordable.
If you are still using toilet papers or external spraying hose, you might probably also want to switch to this type of bidet. It is gentle, clean and environmental friendly. I also makes your toilet looks modern and classy to your guests.