Bluelab Replacement pH Probe for Guardian, Combo, & pH Meter spl_ps • Highly efficient in overlapping

• Highly efficient in overlapping multi-light configurations

• No need for extra wetting agents

The calibration buffers are automatically recognized and after calibration the buffer values used are shown on the display as a tag

• Eliminate the need for caustic chemicals like peroxide or bleaches to clean reservoirs

then recovering this solvent

Bluelab Replacement pH Probe for Guardian, Combo, & pH Meter spl_ps • Highly efficient in overlappingEasy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all glass electrodes because of its tough polypropylene barrel. Gel filled (non refillable) making it maintenance free and a double junction reference providing longer life! Probe Tips All probes are interchangeable between all Bluelab products All probes carry a 6 month warranty Proper hydration of pH probes is vital to maintain wick All pH probes eventually