Testo t3 t4 temperature data logger 176 series testo 0572 1764 p this simple to use 4 channel datalogger for temperature monitoring from testo has inputs programmable for types j k and t thermocouple sensors and is capable of logging up to 2 million measurement variables p p log interval is programmable between 1 second and 24 hours the long life lithium battery gives an operating life of around 8 years at 15min log interval and with lcd display switched off p p what s in the box