Pulsecho Systems offers Digital Relative Humidity Meter. Pulsecho Systems manufactures ultrasonic and electronic instruments. The Digital Relative Humidity Meter consists of 8 to 92% RH that covers most areas of environmental testing. It finds use in food and grain processing, pharmaceutical and agro industries, air conditioning, and environmental control, textile and chemical plants. A stable capacitive sensor gives direct reading of RH. Digital Relative Humidity Meter that can be calibrated using double walled calibration chambers which maintain the humidity. It is available in three different models: Hygrotest, Digi-Ph-Ase and Thermis.