HF Instruments Supplies offers an excellent selection of test & measuring instruments while providing reliable service and competitive prices. HF Instruments Supplies provides and caters complete end to end support and solutions to our clientsdown to the very last detail, making it easy for our clients to focus on their core businesses. A broad selection of instruments are available to meet our customers specifications and budgets. Our goal is to bring you innovative products that will improve efficiency and productivity. pH meter & controller Conductivity, TDS & Salinity Dissolved Oxygen meter Thermometer Thermohygrometer RH Refractometer manual & digital & etc read more