pH Pen with Large LCD Display Light Trap and it allows the net

and it allows the net to be against the floor

Differential 1-1

Deter biofilm proliferation

100% rated output

Old Model End of Line Hopper 175lt

pH Pen with Large LCD Display Light Trap and it allows the netpH Pen with Large LCD Display Image shows 3 displays available, this price is for one Pen. Highly stable and accurate readings with large LCD display Designed for simple one hand operation Automatically calibrates to pH 4, 7, 10 buffers and can be adjusted to recognize non standard buffers as well Features hold function, and auto power off with low battery indicator The case is IP65 water proof, and will float if accidentally dropped into the water