Check-iT TDS Meter

WHAT YOU GET: CHECK-iT TDS with SILICONE CASE 2x 10X10 PUSHFITS 2x 8X10 PUSHFITS VELCRO STRAP Please Note: Does not include CR2450 battery due to air transportation regulations.  We Recommend: Sealing the battery compartment with electrical tape. CHECK-IT : The at-brush TDS METER for Water Fed Poles CHECK-IT is the world's first at-brush TDS METER for Water Fed Window Cleaners.  Developed to deliver the most important information a Window Cleaner needs to know - IS MY WATER SPOT-FREE?  You can use CHECK-iT with ANY BRAND WATER FED POLE ! USING WITH DI ONLY  Our initial design for Check-iT was for DI ONLY systems (note : all DI SYSTEMS can fail without notice, resulting in spots on windows, and unavoidable re-working)   Now, your Operator can take responsibility to check the TDS of his filtered water at any time during every working day, without costing their time, nor changing their normal work practices.  We recommend your Operators simply squeeze CHECK-IT each time before they r