Myron L Ultrapen PT2 pH & Temperature Pen Propagation Lighting They put out very little

They put out very little heat (about 20%) as compared to a conventional H

Because it is UV-only

there is no loss of water

reusable drip tray ensures no water leakage and is capable of supporting heavier loads

Myron L Ultrapen PT2 pH & Temperature Pen Propagation Lighting They put out very littleThe Myron L Ultrapen PT2 pH & Temperature Pen is designed to be extremely accurate, fast and simple to use in diverse water quality applications. Advanced features include automatic temperature compensation; highly stable microprocessor based circuitry; user intuitive design; and waterproof housing. A true one handed instrument, the PT2 is easy to calibrate and easy to use. To take a measurement, you simply push a button then dip the pen in solution.