Dell PowerEdge UPS 500T Remote EMP Environmental Monitoring Probe JY9T4 0JY9T4 TW-0JY9T4. The Dell Environmental Monitoring Probe (EMP) is an optional connectivity device that lets you remotely monitor the temperature, humidity, and status of two contact devices through a standard Web browser, providing greater power management control and flexible monitoring.Dell Part Number: JY9T4 0JY9T4 TW-0JY9T4Compatible Models: Dell PowerEdge UPS 500TIncluded: - Dell Environmental Monitoring Probe- Ethernet cable- Installation accessories- Installation instructions- User’s guide Features:- Hot-swappable feature simplifies installation by letting you install the probe safely without powering down the card or critical UPS load.- Monitors temperature and humidity information of any desired environment to protect your critical equipment.- Measures temperatures between 0 and 70°C with an accuracy of ±2°C.- Measures relative humidity between 0 and 100% RH with an accuracy of ±5%.- Can be located away from the card with Ethernet cable up to 10m (33 ft) long.- Monitors the status of two user-provided contact devices.- Temperature, humidity, and contact closure status can be displayed through a Web browser, an Internet-ready cell phone or PDA, or SNMP management software.- User-selectable alarm thresholds let you to define acceptable temperature or humidity limits.- E-mail notification through SMTP (simple mail transport protocol) using e-mail client software when acceptable alarm limits are exceeded or contacts status changes.- Changes in contact closure status are logged in the card’s Event History log.- When temperature and humidity values exceed user-selectable limits, the event is logged in the card’s Event History log.- Compatible with any Dell Network Management Card