Is the connector a bsp or npt type?

We connected this device using FNPT Pipe to hose connections.

Can you daisy chain these?

Yes but pressure will become an issue after 3.

I use it on my garden hose to fill pond so I don’t forget it’s filling Works great and doesn’t need much pressure to light a 12 volt car tail light

ASIN	B07JY62J3B
Batteries Required?	No
Batteries included?	No
Colour	Yellow Red Black Silver Transparent
Date First Available	27 Oct. 2018
Included Components	Power cord, User manual
Item Weight	67.6 g
Item model number	wonofa
Manufacturer	wonofa
Material	plastic
Package Dimensions	9.91 x 6.1 x 5.31 cm; 67.75 g
Power Source	Water Powered
Special Features	Portable
Voltage	12 Volts
Wattage	10 watts