Apresys Single Use USB Temperature Datalogger Unit price: USD12.00, FOB Shanghai Accuracy: ±1°F (±0.5°C) Temp. Range: -40°C ~80°C Model: D25: 25 days, interval time: 5mins D50: 50days, interva time: 10mins D99: 99days, interval time: 20mins Package: 18cmx12cmx5.5cm USB socket can be directly connected with the computer to read, save, and print data