* LCD display supports level 1 to 4 and keeps clear in different environments * 250g weight, compact & portable, 3.5 inch LCD display, easy to use * Expandable designs support external modules or data transmission * Intelligent alarm design supports multiple lights and sound settings On-site mode supports 20,000 records, and monitor mode stores for 48 hours * Easy to review, records can be checked by list and table formDisplay: 3.5"color LCD screen Size: 146mm*67mm*30mm Weight: 250g Store: The packaged monitor shall be stored at ambient temperature -20ºC～+55ºC，Relative humidity not greater than 95%. Built-in battery: 3.7V/2000mAH P≤3.2VA Power: AC: 100—240VAC, Output DC:5V/2A mirco usb Safety: BF type device Temperature： working temperature: 5ºC～ 40ºC transportation and store temperature -20ºC～+55ºC Humidity:  working humidity 15%～80% Transportation and store humidity ≤ 95% Atmospheric pressure: 700hPa~1060hPa NIBP： Method: oscillation method Measure mode: Manual, Auto, STAT Automatic measuring interval: 1 ~ 90 (Min) Measure time in continuous mode: 5 (Min) Pulse rate: 40 ~ 240 (bpm) Alarm Type: SYS, DIA, MEAN Measurement Range:  Adult Mode（mmHg）:  SYS：40 ~ 270， DIA: 20 ~ 230， MEAN：10 ~ 210。 Pediatric Mode : SYS：40 ~ 200， DIA：10 ~ 150， MEAN：20 ~ 165。 Neonatal Mode : SYS：40 ~ 135， DIA：20 ~ 105， MEAN：10 ~ 95。 Resolution:  1mmHg Accuracy:  5mmHg Protection (mmHg):  Adult: 290, Pediatric: 240, Neonatal: 145 SpO2： Measurement Range: SpO2: 0‐100%, PR: 0‐254bpm， perfusion index: 0.2%‐20% Measurement Accuracy: SpO2: 70%‐100% ±2 PR: ±2, Temp: Measurement Range: 0~50℃ Measurement Accuracy: 0~32 \43~50℃ ±4%, 32~43℃(Human)±0.3℃