A single-use humidity and temperature recorder with pushbutton start and LED alarm indicator provides visual indication that temperatures have exceeded user defined thresholds. Ideal for monitoring the storage or shipment of perishable goods. Temperature Sensor: Internal semiconductor Temperature Range: -20 to +70°C Temperature Resolution: 0.1°C Calibrated Accuracy: ±0.5°C (-10 to +40°C) ±1.0°C (-20 to +70°C) Humidity Sensor: Internal semiconductor Humidity Range: 0~90% RH Humidity Resolution: 0.1% RH Calibrated Accuracy: ±0.5%RH Memory: 8,191/channel Sample Rate: 5 seconds up to 30 minutes RH Units: %RH, dew pt., water vapor, concentration (mg/hl) LED Indicator: Red & Green Required Interface Package: IFC110 Baud Rate: 38,400 Typical Battery Life: 90 days Operating Environment: -20~+70°C, 0~90%RH non-condensing Material: ABS plastic Dimensions: 1.9" x 3.6" x 0.7" (49mm x 92mm x 18mm) CE Approval: Yes Weight: 1.4oz.