Probe Range:PTC: -58 to 302°F (-50 to 150°C); NTC: -58 to 230°F (-50 to 110°C).Input:PTC (1000 Ω @ 25°C) or NTC (10KΩ @ 25°C) thermistor.Output:Relay 1: SPST relay rated 16 A @ 240 VAC resistive, 10 FLA, 60 LRA; Relay 2: SPST relay rated 5 A @ 240 VAC resistive; Relay 3: SPST relay rated 8 A @ 240 VAC resistive.Horsepower Rating (HP):1 HP (Relay 1).Control Type:On/off with defrost options.Power Requirements:115 VAC, 230 VAC, 24 VAC/VDC, or 12 VAC/VDC.Power Consumption:3.6 VA @ 115/230 VAC; 1.5 VA @ 12/24 VAC/VDC.Accuracy:±1% FS.Display:3-digit, plus sign.Resolution:0.1°.Memory Backup:Nonvolatile memory.Ambient Operating Temperature:32 to 131°F (0 to 55°C).Storage Temperature:-4 to 176°F (-20 to 80°C).Weight:115 and 230 V models: 7.2 oz (204 g); 12 and 24 V models: 4.8 oz (136 g).Front Panel Rating:IP65.Agency Approvals:CE, cURus.