Pro's Kit MT-4618 - Preparations Before Use; Battery Installation; Battery Replacement Indicator

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● Dynamic range of sound pressure: 50 dB (for each
measurement gear level).
● Sound pressure measurement scope: 30-130 dBA, 30-130
dBC.
● Sound pressure frequency weighting characteristics: A and C
characteristics.
● Dynamic characteristic of sound pressure: FAST 125ms,
SLOW 1sec
● Microphone: polarized capacitive microphone.
● Digital display: 4-digit, resolution: 0.1 dB, sampling rate: 2
times/sec.
● Analog bar display: Each analog bar represents 1 dB,
sampling rate is 20 times/sec.
● Measurement gear level: 30-80 dB, 40-90 dB, 50-100 dB,
60—110 dB, 70—120 dB, 80-130 dB, 6 gear levels in total.
● Automatic shifting gear level: microcomputer will automatically
select the best gear level in the range from 30 to 130 dB.
● Below or above limit prompt: indicated with “UNDER” or
“OVER” display.
● Power supply: AAA x 4 batteries of 1.5V each
● Operating temperature: 0 ~+ 40 °C
● Operating temperature: 10 ~80％RH
● Storage temperature: - 10 ~+ 60 °C
● Storage humidity: 10 ~70％ RH
● Outside measurement: 193 (L) × 60(W) × 29 (H) mm
● Accessories: Instruction manual, cotton ball
Preparations before use
1. Use a phillips head to open the battery cover on the back of
the meter, and install AAA x 4 alkaline batteries of 1.5V each
to the battery holder.
2. Return the battery cover and use a phillips head to tighten
screw.
3. When the battery is aging, “ ” symbol will appear on the
LCD display, indicating that batteries don’t have enough power
to use, and should be replaced with new ones.