Working power supply: 9V battery x 1 (not included)
The thermal conductivity meter is an electronic instrument designed and manufactured based on the thermal conductivity of diamonds. It is specially used to identify the authenticity of diamonds. It is also suitable for detecting/identifying the hardness of genuine gemstones such as jade, jade, crystal, etc.
The metal tip of the probe is electrically heated and a buzzing sound is made when it touches the surface of the diamond
Whether it is to identify the authenticity of diamonds or test the hardness of jade, it should be noted that the probe of the thermal conductivity meter should be at a 90-degree right angle to the object being tested
When testing, adjust the three-color indicator light to the 4th grid, then press the triangular iron sheet at the back with your hand, and align the probe vertically with the test object. If it is a diamond, the light jumps to the 8th grid or above, that is, the red light area, and a dripping sound is made; if it is to test jade, the light will light up the 6th or 7th grid, indicating that the hardness of the jade has reached, and there will be no sound
The operating environment is 5-35 degrees Celsius, and the tested product must be clean, dry and at room temperature
It can detect undetectable metals buried in beaches, caves, grasslands, etc. (such as coins, cultural relics, jewelry, gold, silver, etc.). This detector is versatile, simple and easy to operate, and is a good helper in search work.
Power supply: 9V standard or rechargeable battery (not included)
Radiation survey meter can test electric field radiation and magnetic field emission to reach the optimal test result.
It is used to test and learn electromagnetic radiation situation indoor and outdoor.
It is equipped with a built-in electromagnetic radiation sensor, which can display the radiation value on LCD digital display after processing by the control micro-chip.
You can make reasonable processing or taking effective prevention measures toward the electromagnetic radiation according to the test result
One instrument with two uses, it can test the electric field and the magnetic field radiation at the same time
Sound-light alarm, when the test result exceeds the safe value, the instrument will alarm automatically
Mainly used to test various battery voltage, discharge current, discharge power, discharge impedance, internal resistance, capacity, discharge energy, power consumption and running time, and display the measurement data through the LCD screen.
Voltage:
Measuring range: 0-200V. (When the test voltage is less than 8V, please use the independent power supply method)
Display format: less than 10V display such as: 9.99V
Measure voltage, frequency, current, power factor, wattage, minimum & maximum power and record cumulative kilowatt-hour, time and electricity expenses.
Seven display modes, transferred by pressing "FUNCTION".
Overload warning displayed on LCD.
Resetting for abnormal display or no-response of button.
It can test electric field strength and magnetic field strength to reach the optimal test result. Its widely used to test and learn electromagnetic radiation situation indoor and outdoor. Suitable to measure the electro-magnetic generated machine, measure low frequency appliance and high frequency radiation appliance.
One instrument with two uses, it can test the electric field and the magnetic field radiation at the same time.
Sound-light alarm, when the test result exceeds the safe value, the instrument will alarm automatically.
Data locking, one-key lock of the radiation value and easily read the value.
Measure the Environment Temperature: with 2 temperature units (Celsius and Fahrenheit).
Radiation assessment, remind you whether the radiation value is safe or not.
Fashionable design, easy on-hand operation, its easy to carry and make field measurement.
Auto MPPT detection: when pressing the AUTO MPPT test button, the instrument automatically adjusts the test interval time according to the current power value and refreshes the digital display. for example, when the power of solar panel is 100W, refresh once every 5s.
Manual MPPT detection: when pressing the manual MPPT test button, the instrument starts a scan of the maximum power point and refreshes the digital display.
Open circuit voltage realtime display: the open circuit voltage will display on the large LCD screen at any time, giving you a better experience.
Large LCD display with backlight: the upgraded screen adopts large LCD with backlight, you can turn on or turn off the screen with your like.
Multi-protections: over-voltage protects, over-temperature protects, over-current protects and over-rated power protects.
Wide applications: this multimeter can be widely used by PV panel manufacturers, PV panel distributors, PV panel installers, PV panel users and PV panel fans.