Honeywell 00325A1 Digital Hygrometer Thermometer

Product Description

The HONEYWELL 00325A1 is a digital hygrometer and thermometer designed for indoor environmental monitoring. It measures and displays both temperature and relative humidity simultaneously, with selectable readout in Fahrenheit or Celsius. Temperature range spans 32 to 122 degrees F (0 to 50 degrees C). Humidity range covers 20% to 95% RH. The unit also tracks daily high and low readings for both measurements and includes a Comfort index icon that indicates whether indoor humidity is low, high, or within an acceptable range. HVAC technicians, indoor air quality specialists, and facility maintenance personnel use this tool to verify conditioned space conditions during system commissioning or diagnostic work.

This hygrometer thermometer is suited for residential and light commercial indoor applications where monitoring temperature and humidity is part of routine HVAC service, IAQ assessment, or building envelope evaluation. Its compact footprint and magnetic mounting back allow placement on air handler cabinets, equipment panels, or any ferrous surface for hands-free monitoring during service calls. The selectable F/C display makes it usable across job types without configuration tools.

Key Features

• Simultaneous temperature and humidity display with selectable Fahrenheit or Celsius readout
• Temperature range: 32 to 122 degrees F (0 to 50 degrees C)
• Humidity range: 20% to 95% RH
• Tracks and displays daily high and low readings for both temperature and humidity
• Comfort index icon indicates low, OK, or high humidity status at a glance
• Magnetic back for tool-free mounting on ferrous surfaces
• Compact size: 3.06 inches H x 2.48 inches W x 1.29 inches D

Compatibility

Designed for general indoor use as a standalone digital hygrometer and thermometer; compatible with any indoor environment requiring temperature and humidity monitoring within the specified measurement ranges.

Installation Notes

No wiring or power shutoff is required for installation. Place or magnetically mount the unit in the target monitoring location prior to inserting the battery. One AA battery is required for operation and is not included. Verify the unit is positioned away from direct airflow, vents, or exterior walls that could skew ambient readings.

Technical Specifications

• Temperature Range: 32 to 122 degrees F (0 to 50 degrees C)
• Humidity Range: 20% to 95% RH
• Display Units: Selectable Fahrenheit or Celsius
• Dimensions: 3.06 inches H x 2.48 inches W x 1.29 inches D
• Weight: 0.336 pounds
• Power Source: 1 AA battery (not included)
• Mounting: Magnetic back
• UPC: 00072397003254

Standard Information

• Brand: HONEYWELL
• Manufacturer Part Number: 00325A1