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GTHD: Daisy-chainable temperature/humidity/dew-point sensor
for in-row monitoring of rapid temperature drops and/or high humidity in multiple racks
GTHD digital temperature/humidity/dew-point sensor provides real-time measurements to the host device for data logging and alarming. GTHD collects and transmits real-time temperature, humidity and dew point data to protect critical data center equipment from heat and moisture.
The sensor comes equipped with two RJ12 jacks:
• One uplink port for output to the host Watchdog monitoring appliance, and
• One for daisy-chaining an additional sensor.
An RJ12 patch cable for connection from sensor to host Watchdog monitoring appliance is included. The plastic enclosure mounts easily anywhere in the data center with screws, magnets or adhesive.
GTHD requires a Watchdog monitoring appliance host device to transmit data. It counts as a single digital sensor while reporting multiple temperature readings.
The unit may be daisy chained with other GTHD or GT3HD sensors to form a sophisticated climate monitoring network with real-time data logging and alarming. This is especially useful when achieving in-row temperature monitoring for top, middle, and bottom of each rack as per ASHRAE guidelines.
GTHD is especially useful for watching out for rapid temperature drops and/or high humidity that can cause condensation to form on electronic equipment, resulting in hardware corrosion and component failure. Electrostatic discharge is likely to occur at low relative humidity levels, which can severely damage sensitive IT equipment.
Based on ASHRAE's recommended humidity range for IT equipment, Vertiv suggests setting relative humidity alarm thresholds for when the value exceeds 55% or falls below 40%, however each facility is unique and may require varied ranges.
Includes
• GTHD Sensor
• RJ12 (6P6C) patch cable, 10 feet
Note: GTHD sensors are pre-calibrated by the manufacturer