Specification :

Sound level meter series
Application :Used to test the sound level of environment ,mechanic,vehicle,ship and other noise .Fit for industry ,enviromental protecting ,working ,sanitation,teaching research and other departments.
TR-5868P / TR-5858/TR-5866/TR-5826
standard :GB/T3785,IEC651 Type2,ANSIS1.4Type 2 .
Measuring range :
Lp :
A : 30-130dB / L:35-100dB H:80-130dB
C ; 35-130dB
Line:40-130dB / 35-130dB
Ln:0-100%
DC output : 10mv=1dB Resolution: 0.1dB. Accuracy:1dB.LCD display,
power supply :4*1.5VAAA battery / 1*9V6F22 battery /4*1.5VAA battery
Dimensions : 236*63*26mm / 195*72*31mm / 233*68*32mm
weight(not including battery) 170g/195g/158g/175g

TR-5856 TR-5818
standard : IEC651 Type2,ANSIS1.4Type 2
Measuring range :
A : 30-130dB/30-130dB
C: 30-130dB/ 35-130dB
Resolution: 0.1dB.Accuracy:1dB. LCD display .power supply: 4*1.5VAA(UM-3)battery
Dimensions: 210*69*32mm.weight: 175g.