The HIH-4000 series has been specifically designed for use in high volume OEM (Original Equipment Manufacturer) applications. These sensors utilise a near linear voltage output making direct input to a controller or other devices possible. They are ideally suited for low drain, battery operated systems with a typical current draw of only 200 μA. Potential Applications:Refrigeration equipmentHVAC equipmentMedical equipmentDryingMeteorologyBattery-powered systemsOEM assemblies

Features:Moulded thermoset plastic housingNear linear voltage output vs %RHLaser-trimmed interchangeabilityEnhanced accuracy, fast responseFast response timeStable, low drift performanceChemically resistant

This humidity sensor from Honeywell is specifically designed for high-volume original equipment manufacturer (OEM) users. The sensor is frequently installed in equipment that requires strict monitoring of humidity levels, such as sensitive medical equipment or meteorological instruments. It has a moulded thermoset plastic housing, so it's able to withstand light impacts. The sensing element's multilayer construction also provides excellent resistance to moisture as well as oils, dirt, dust and chemicals, making it a good choice for use in harsh environments.

• Single in-line package (SIP) type for simple mounting onto printed circuit boards (PCBs)
• Analogue interface for easy pressure readings
• Low current draw of 200μA, making it suitable for low-drain, battery-operated systems
• Wide operating temperature range of -40°C to +85°C for use in a variety of conditions

• Heating, ventilation and air conditioning (HVAC) equipment
• Medical industry
• Refrigeration equipment

The humidity sensor should be placed in an area of the PCB that's as far away as possible from any heat-generating components. This reduces the risk of inaccurate readings caused by differences in temperature.

Temperature & Humidity Sensors, Honeywell