Measurement specifications Temperature (internal sensor)
Range: -4°F to +158°F (-20°C to +70°C) Range for internal sensor when used outside of case: -40°F to +248°F (-40°C to +120°C) Accuracy: ±1.27°F (±0.7°C) at +70°F, see plot below Resolution: 0.7°F (0.4°C) at +70°F Response time still in air: 15 min. typical with sensor inside case; 1 min. typical with sensor outside case Relative humidity (user-replaceable RH sensor)
Range: 25% to 95% RH at +80°F for intervals of > 10 seconds, non-condensing and non-fogging, see plot below Accuracy: ±5% (requires BoxCar 3.7.3 or BoxCar Pro 4.3 or higher) Response time 10 min. typical in air Sensor operating environment: +41°F to +122°F (+5°C to +50°C) non-condensing and non-fogging
External input accepts the following sensors:
Wide range of temperature sensors (TMCx-Hx series) Split-core CTs for AC current (5 Models) 4-20 mA input cable (CABLE-4-20mA) 0-2.5 V DC input cable (CABLE-2.5-STEREO) External 2.5 volt input specifications
2.5 mm jack: external input ground, input, switched 2.5 V output; external input ground connection is not the same as PC interface connection ground and should not be connected to any external ground Input range: 0 to +2.5 Volts DC Accuracy: ±10 mV ±1% of reading Resolution: 10 mV (8-bit) Out power: +2.5 Volts DC at 2 mA, active only during measurements
