RCYAGO Máy Đo Âm Thanh Kỹ Thuật Số Mini GM1352 Decibel LCD Độ Ồn Thiết Bị Đo Lường Máy Đo Độ Ồn 30 ~ 13dBA Cho Phòng Trẻ Em, Gia Đình, Văn Phòng

RCYAGO GM1352 Mini Digital Sound Level Meter Decibel LCD Noise Meter Monitoring 30~13dBA for Baby Room, Home, Office

Instruction: It's a clear view voice level tester for detect whether the environment noice affects your daily life, it is suggested that the sound dicebel should be no more than 55dB during the day and less than 45dB at night, otherwise, it will affects our sleeping or even hearing.

With its precise measurement, LCD screen with backlight, portable design and easy operation, you could find it's a perfect tool to monitor the life noise.

Specification:

• Voice measurement range: 30dB to 130dBA
• Accuracy: ±1.5dB
• Resolution: 0.1dB
• Sound Frequency response: 31.5Hz~8KHz
• Sound Frequency weighting features: A Weighting
• Operating Temperature: 0~40°C (10%~80%RH)
• Storage Temperature: -10~60°C (10%~70%RH)
• Fast and slow sampling rate for choice: 125ms or 1s.
• Display: 5 digits LCD, Max Display 99999
• Material: ABS Plastic
• Power Supply: 3 * 1.5V AAA Batteries

Details:

1. Noise Meter Decibel Range Reference:

0 ~ 20dB: Be quiet;

20~40dB: Whisper;

40~60dB: Normal conversation;

60~70dB: Noisy;

70~90dB: Start to damage hearing;

More than 100db: Harmful to hearing

Therefore for the sound over 70dB is good for health, it's time for lower the Volume;

1. Sound Frequency Meter with LCD Display Screen

It's a digital LCD noise level meter that you could view the signs of battery, over alarm, data retention, Max, Min value, sound reading value and unit of sound weighting, so that you could have a clear view of the noice measurement condition.

How to Use:

1. Open the battery cover and insert 3 1.5V AAA batteries, as shown in Figure 4.

2. Close the battery cover.

3. Sound level reading:

Press the power button and the LCD panel will display full screen for 1 second

Instantly display the sound level value of the current ambient noise based on the current environment

The magnitude of environmental noise varies.

4. Minimum sound level value lock:

Press the "MIN" key to enter the "MIN" measurement mode, and the current data will

Locked until the current value is replaced after the minimum value appears.

5. Maximum sound level lock:

Press the "MAX" button again to enter the "MAX" measurement mode. The current data

Will be locked until the current value is replaced by the maximum value, and then press

Press the "" key to return to measurement mode.

6. Measurement data retention:

Press the "HOLD" key, the current measurement data will be locked, press again

The '' key exits the lock.

7. LCD backlight operation:

Short press the "LIGHT" button to turn on the LCD backlight. Short press the "" button again

The LCD backlight is turned off.

8. Shutdown:

This machine defaults to automatic shutdown without any operation for 10 minutes, or long press the on button

Press and hold the "" button for 2 seconds to manually shut down the device. When the device is turned on, press and hold the "" button for 3 seconds, and the LCD will display

'UOF' will not automatically shut down and can only be manually turned off

1. High Quality Noise measuring device with sensitive Probe, comfortable Design, and Batter Powered

• High quality probe: Capacitive microphone probe, Fast and sensitive, responsive;
• High quality soft rubber button.Feel comfortable, side slip design
• Battery compartment3*AAA battery power supply, easy to buy

4. Baby Room Sound Noice Tester and Office Sound Meaurement

It's a convenient Noise monitoring device for wide use, for example, you could measure the noise for baby room, Home, Schools, Offices, or construction site to control the environmental voice to avoid make great noice to other or being annoyed by big noises.

Calibration method

*Please use 94dB@1KHz Standard audio source*

1. Carefully insert the microphone head into the standard sound source（ 94dB@1KHz ）1/2 inch

Inside the hole;

2. Open standard audio source（ 94dB@1KHz ）Use a slotted screwdriver to adjust the potentiometer at the round hole in the back of the machine to make the LCD display 94.0,

(as shown in Figure 1);

*This instrument has been calibrated before leaving the factory, and it is recommended that the calibration cycle be one year