Solinst 407 Bladder Pump Configuration:1.0" Stainless Steel x 2ft - 316 SS Balls 5" LCD and capacitive touch

5" LCD and capacitive touch keypad that measures dissolved oxygen (concentration and % saturation) and temperature using an auto-recognizing digital galvanic DO probe

a top-of-well connector

Its compact size and durable construction make it perfect for carrying in your pocket

Used with: YSI 556 (requires the guard extension kit and a 2-port ProSeries/556 cable)

real-time readings

Solinst 407 Bladder Pump Configuration:1.0" Stainless Steel x 2ft - 316 SS Balls 5" LCD and capacitive touchThe Solinst 407 Mk2 Bladder Pump is a pneumatically driven groundwater sampling pump built around a flexible Santoprene bladder inside a rigid stainless steel or PVC body. Compressed air or nitrogen from a surface control unit pressurizes the space between the bladder and the housing, collapsing the bladder and forcing the water inside it up through a check valve to the discharge line; venting the drive pressure lets the bladder re expand and refill