1 Isolation design: the detector adopts the isolation design of digital signal and analog signal which can carry out the live test safe and reliable in operation. 2 Durable material: personalized key layout the sheath design is non slip and shockproof and the silicone keyboard is comfortable and wear resistant. 3 Clear display: tft high definition display intuitively displays multiple real time signal changes and real time switching temperature list and bar graph. 4 Multiple function: u disk storage function support optional small memory card data storage with type c communication support optional bluetooth or 4g communication module. 5 Temperature alarm: when the set temperature is higher than the upper limit value or lower than the lower limit value the buzzer will beep for a long time to provide alarm control. 6 Wide application: support multi platform data collection and monitoring widely used in cold storage warehouse temperature surface measurement of electronic components etc.