Nt-1 rfid temperature logger Nt-1 is the low-cost contactless temperature logger. ItÆs the combination between Temperature logger and rfid logistic tag.The customer can use nt-1 to ensure storage Temperature and also keep product information and identify for item tracking.Useful in food traceability. -low cost contactless -temperature logger -contactless communication -low frequency -wide-range temperature Size 9cm. X 5.6 cm.