Allowing users to view data and alarms from anywhere using PC or smartphone/tablet, EL-WiFi-DTC measures temperatures from -454 to +2,372°F via external K-, N-, J-, and T-type probes and automatically communicates readings using Wi-Fi network. Freestanding unit, powered by internal rechargeable lithium polymer battery typically accurate to ±1.5°C with K-type probes, can also attach to wall or surface using provided bracket, and probes connect via miniature thermocouple connector.