Connects to a Vertiv Geist Environmental Monitor or rPDU via Plug-n-Play sensor port. Receive alerts via email, SMS, or SNMP traps for abnormal environmental conditions from the connected Rack PDU. Ideal for monitoring top, middle, and bottom of a server rack per ASHRAE TC9.9 Standards. Daisy-chain sensors together to simplify installation and cable management. Geist GT3HD is a temperature, humidity, and dew point sensor with dual inputs for included 3ft / .9m and 6ft / 1.8m temperature sensors for monitoring top, middle, and bottom of a rack or cabinet. Includes a supplementary input for daisy-chaining additional sensors. Includes 10ft / 3m cable.. Features. Cable length. 3 m. Accuracy. 3%. Humidity measuring range. 5 - 95%. Temperature measuring range. -20 - 80 °C. Ports quantity. 4. Standard interfaces. RJ-12. Connectivity technology. Wired. Type. Freestanding. Sensor type. Temperature & humidity sensor. Purpose. Indoor. Logistics data. Harmonized System (HS) code. 90318080. leaflet