7
Shell
ABS
Display
4.0 inch RGB LCD screen
Controller
ARM
Connector
USB interface (also charger input)
3.5mm stereo headphone jack
External ultrasonic sensor input
wireless wifi
Wireless synchronization benchmark
Earphone
minimum 8 ohm
SD card
standard 16G
Built-in battery
3.7V/1Ah lithium battery
Working time
about 8 hours
Charger
AC 90-264V or DC 5V
Operating temperature
-20 ~ 50
℃
Humidity
20-85% relative humidity
Weight
0.4KG(host)
2.6 Standard
DL / T 500-2009 Technical conditions for voltage tester
GB / T 4208-2008 Classification of enclosure protection level (IP code)
GB / T 2423.1-2001 Basic environmental test regulations for electrical and
electronic products Test A: Low temperature test method
GB / T 2423.2-2001 Basic environmental test regulations for electrical and
electronic products Test B: High temperature test method
GB / T 2423.4-1993 Basic environmental test regulations for electrical and
electronic products Test: alternating damp heat test method
GB / T 2423.5-1995 Environmental testing for electrical and electronic products
Part 2: Test methods Tests and guidelines: Impact test methods
GB / T 2423.10-1995 Environmental testing for electrical and electronic products
Part 2: Test methods Tests and guidelines: Vibration (sine) test method
GB / T 17626.2-2006 Electromagnetic compatibility test and measurement
technology Electrostatic discharge immunity test (IEC 61000-4-2: 1995)