Huayi MS6702 triple SLM (sound level + temperature + humidity)

Huayi MASTECH MS6702 triple SLM (sound level + temperature + humidity) Features:? Triple multi-function test (sound level, temperature, humidity) Auto range and manual range fast mode and slow mode the maximum??? ? Hold Data Hold backlight Low battery indicator Specifications:??? measuring the sound level range: 30dB ~ 130dB sound level accuracy:? ± 2dB (30Hz ~ 8kHz) sound level resolution:?? 0.1dB Sampling rate: Quick mode 4 times / second, slow mode 1 times / sec Temperature measurement range: -20 ~ 60 ℃ Temperature accuracy: ± 0.9 ℃, 40 ℃ ~ 60 ℃; ± 0.5 ℃, 5 ℃ ~ 40 ℃; ± 1.1?? ℃, -20 ℃ ~ 5 ℃ temperature Resolution:? 0.1 ℃ relative humidity measurement range:? 10% ~ 90% RH relative humidity measurement accuracy:? ± 2% RH (10% RH ~ 90% RH) RH resolution? Rate: 1% over range indicator Power:?? 6 × 1.5V AAA Weight:? about 350g Dimensions:? 278 × 80 × 38mm detailed consultation Wong: 13826516595