Click to expand Tap to zoom by Hanna Instruments Hanna HI97770 Silica High Range Photometer – Waterproof, Portable, Precision Optical System No reviews Choose a variant Kit - $634.99 Meter Only - $414.99 Kit #MWS Options 1 - $1,184.98 Kit? (*Reagents sold separately): Kit Kit Meter Only Kit #MWS Options 1 Quantity Add to cart