HT Instruments HT154 二级专业数字声级计

SOUND PRESSURE LEVEL (SPL): 30 ÷ 80dB/ 50 ÷ 100dB/ 80 ÷ 130dB; 50dB; ±1.5dB A, C; 31.5Hz ÷8kHz 

TIME INTEGRATION: FAST 125ms; SLOW 1sec 

ANALOGICAL OUTPUT: 

AC: 1Vrms respect selected F.S.; 50Ω

DC: 10mV/dB; 100Ω

MICROPHONE ½ inches Electret condenser 

Power supply: 9V alkaline battery type NEDA1604, JIS006P, IEC6F22; 30 hours

External DC adapter: 9VDC output voltage

 >30mADC output current 

Display: LCD, 3½ digits

Display update: 0.5s 

Size: 280(L) x 80(W) x 32(H)mm

Weight (with battery): about 300g 

Accessories: 

Wind protection

Rigid case HT154

4x1.5V alkaline batteries type A LR06

HT150

Screwdriver for manual calibration

JACK 3.5MM FOR ANALOGUE AC/DC OUTPUTS

Batteries and user manual for sound level meter

User manual for mobile calibrator

Batteries and user manual