This rugged temperature recorder with aluminum enclosure is submersible and equipped with a key ring endcap for easy attachment where needed. It is ideal for any temperature measurement application in a rugged or harsh environment. Sensor: Internal semiconductor Temperature Range*: -40~+80°C Resolution: 0.1°C Calibrated Accuracy: ±0.5°C Memory: 32,767 Sample Rate: 2 seconds up to 12 hours Required Interface Package: IFC110 or IFC200 Baud Rate: 2,400 Typical Battery Life: 1 year Operating Environment*: -40~+80°C, 0~100% RH Submersible: Yes Material: Available in anodized aluminum or 303 stainless steel Dimensions: 4.3" x 1.0" dia (110mm x 26mm dia.) CE Approval: Yes Weight: 8oz.