RTR501B Remote Data Logger with internal thermistor sensor. Measurement Range: -40 to +80°C, Accuracy ±0.5°C, Resolution 0.1°C. Response Time 35 mins (t90%). Internal Memory 16,000 Readings, Logging Interval: 1, 2, 5, 10, 15, 20, 30 sec. or 1, 2, 5, 10, 15, 20, 30 or 60 min. 3.6V @ 1.2Ah, ½AA SAFT LS14250 Battery, Life 10 months. IP67 Enclosure ...