1741200 Mini OLED Temperature Monitor – BlueMonitors essential electrical system parameters on a bright, waterproof, daylight readable OLED screen.Features:Compact size enables mounting in any convenient locationReverse polarity protectedMounts in a common 1-1/8 in holeConvenient temperature monitoringTemperatures range from -40 DegC to 125 DegC -40 DegF to 250 DegFMeasures in Fahrenheit or CelsiusColor: BlueMeter: TemperatureNominal Voltage: 12V DC/24V DCResolution: 1 DegF or 1 DegCAccuracy: +-1.25%Operating Current: 10mASwitching Cycles: 10,000Weight: 0.30lb 0.14 kg