The Horiba Laqua 9631-10D 3-in-1 pH Electrode, Hydrofluoric Acid or HF Samples, Plastic Body, # 3200524119 is a plastic-body, refillable pH electrode with integrated temperature sensor can measure 1% hydrofluoric acid solution (at 25°C, immersed for 1min) for about 1000X. Suitable for drain water measurement after etching process.
