Time Synchronization Method: NTP, WiFi 2.4G or 5G, LTE-4G, LoRa wireless communication, etc. (choose one) 

Clock Accuracy: Working time accuracy: 20ms 

Power Supply Method: AC220V, POE, DC6V (choose one) 

Timekeeping Method: Temperature-compensated crystal oscillator timekeeping; RTC annual error less than 1 minute without time source;

 Display Method: Year, month, day, hour, minute, second 

Management Method: Working status, time synchronization status, communication status, power on/off, self-reset, countdown, time zone, brightness, synchronization cycle, network parameters 

 Display Color: Red 

Frame Material: 304 stainless steel frame, glass panel 

Explosion-Proof Rating: IIBT4Gb/CT6 

Protection Rating: IP54 

Corrosion Resistance Rating: WF1 

Installation Method: Ceiling mount, wall mount, wall recessed 

Application: Chemical polluted plants, explosion-proof plants, medical plants, biological research institutes