Nomu Standards
  • Operate Normally in Extreme Temperatures

    55℃±2℃   24h

    -20℃±2℃   24h

  • High Temperature & High Humidity Test

    Temperature: 60℃±2℃

    Humidity: 93% (+2%/-3%)

    keep the prototype staying in this environment, test for 48 hours

  • Extreme Temperatures Cycling Test
    Fully charged at room temperature, then put the battery in the test chamber: 75℃±2℃ for 6 hours; Then change the temperature to -40℃±2℃, keep the battery staying in the test chamber for 6 hours; Repeat the procedures 10 times.
  • Over Charging & Over Discharge Protection
    Voltage 7.4V, current 2C5A, continuous charging for 8 hours; After 0.2C5A discharges the voltage, the external 30Ω load discharges for 24 hours.
  • Rolling Washing Machine Fall Test
    The sample was placed in a 0.5 m roller drop tester, total 200-times drop (100 cycles).
  • Drop Test
    The prototype fell freely from the height of 15cm to the wooden table, falling 2000 times、4000 times、6000 times、8000 times.
  • Free Fall Test
    The prototype fell freely from the height of 1.2M to the smooth concrete floor, falling 12 times in 6 directions, two times for each direction. Each corner in once, total 16 times.
  • Underwater Test
    Immersion in water up to 1.2 meters for 96 hours.
International Standards
  • Completely prevent dust intrusion;

    Completely prevent water intrusion;

  • Distance between sample and nozzle:


    Water temperature: 80℃;

    Water flow: 15L/min;

    Tumtable speed:5r/min;

    Hydraulic position: 0℃ and 30℃,60℃ and 90℃;

    Water spraying time: spray water at each position for 30s, a total of 120s;

    Test impact force: 0.9-1.2N.

  • A United States Standard;

    Identify problems through environmental testing, and repeatedly modify equipment to improve products to meet the requirements of various working environments.

    Stand up to the extreme environments like: high altitude, low pressure, high and low temperature, rain, wind, freezing rain, sand dust, explosive gas, liquid leakage, acceleration, impact, transportation shock, shooting vibration, random vibration.


Parts of the patents promulgated by State Intellectual Property Office of People's Republic of China and the Registration Certification of

Computer Software Copyright promulgated by National Copyright Administration of People's Republic of China

  • Phone Intercom Applications System V1.0
  • Phone GPS Automatic Timing
  • Water-proof Headphone holder
  • Water-proof Horn
  • Waterproof combination screw for mobile phone
  • Water-proof earpiece
  • Water-proof microphone
  • Water-proof light guide pipe for mobile phones
  • Water-proof pressure valve for mobile phones
  • Locking battery cover screw for mobile phones
  • Water-proof USB plug for mobile phones
  • Protective Case for Rugged Phone
  • Screw waterproof structure without water-proof gasket
  • Self-tapping screw
  • New Waterproof combination screw for mobile phone
  • Mobile smart environment monitoring system V1.0
  • Emergency collection of alarm calls system V1.0