Dwyer SPPM-HSG28 is a smart programmable panel meter ideal for indoor or outdoor use. It features a 2.4", 2.8" or 3.5" TFT full-color screen with a resolution of 320 x 240 pixels. With an accuracy of ±2.0°F (±1.0°C), it has a temperature range of 32 to 104°F (0 to 40°C) and can be powered by a USB port or with a voltage of 4-30 VDC max. The meter has a NEMA 4X (IP66) enclosure rating and is made of painted aluminum and glass. It has multiple connection options including screw terminals, pin connection, or USB. The input range includes current (0 to 50 mA) and voltage (0 to 40 VDC). With a sampling rate of 3 samples/second and a warm-up time of 30 seconds, the meter is compatible with Windows® 7, Windows® 8, and Windows® 10.