Amittari AS-156B ເຄື່ອງວັດແທກລະດັບສຽງ (Lp, Leq, LN)
Display: LCD with Backlight
Parameters Measured: Lp (Sound Level); Lmax (Maximum Sound Level); Leq (Equivalent Continuous A Sound Level); LN (Percent Of All Readings Over Alarm Value Set)
Measurement Range - Lp: 30~130dB (A); 35~130dB (C); 35~130dB (F)
Measurement Range - Leq: 30~130dB (10s, 1min, 5min, 10min, 15min, 30min, 1hour, 8hour, 24hour)
Measurement Range - LN: 0~100%
Resolution: 0.1dB
Accuracy: ±1dB
Frequency Weighting: "A", "C", "F" (Flat)
Time Weighting: Fast (125ms), Slow (1 second)
Microphone: 1/2 inch Electret Condenser Type
Memory: 30 Groups With Measuring Conditions
Built In Calibration Signal: Built In Calibration Signal
Frequency Range: 20 to 8,000Hz
Alarm Value Set: 30~130dB
Power Supply: 4x1.5V AAA UM-4 Battery
Size: 171 x 70 x 31mm (6.7 x 2.8 x 1.2")
Weight (Without Battery): 145g (5.11oz)
Standard Accessories: Main Unit; Windscreen; Carrying Case; Operation Manual
Optional Accessories: Sound Level Meter Calibrator; USB Cable & Software (See Page 2); Bluetooth Adapter & Software (See Page 2)
ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ