Solinst 407 Bladder Pump Configuration:1.0" Stainless Steel x 2ft - 316 SS Balls tablet-style meter with a 5

tablet-style meter with a 5

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

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

The WTW FDO® 925 is a digital IDS optical dissolved-oxygen sensor that requires no membranes

Solinst 407 Bladder Pump Configuration:1.0" Stainless Steel x 2ft - 316 SS Balls tablet-style meter with a 5The 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