美国Quest 1200积分声级计：
·三段式测量范围选择(30-100dB,50-120dB,70-140dB)。
·频率计权：A、C及Linear(Z)
·回应速度：快、慢、Peak及Impulse。
·交换率：3或5dB。
·可显示项目：SPL、LEQ、RunTime、MAX、MIN及%OL(OverLoad)。
·单键式自动校正功能。
·可选择麦克风可分离式机型(1200R/2200R)，麦克风与主机可分离达50ft.
·具抗EMI/RFI功能。
·符合标准：1200型 Type1，2200型 Type2

美国Quest 1200积分声级计的英文介绍：
The Quest 1200 (Type 1)  and 2200 (Type 2) integrating impulse sound level meters offer superior noise measurement and analysis at a competitive price.
With five operating modes, the 1200 and 2200 provide the most flexible monitoring options among our Basic Series Sound Level Meters.
Specify the Model 1100R or 2100R to receive the detachable microphone version allowing measurements up to 100 feet (30 m) away with optional extension cables.
1200/2200 Technical Specifications
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Measurement Range:
30 to 140 dBA
40 to 140 dBC
43 to 143 dBPk

Microphone:
Size: 0.5" 13.5 mm
Type: Electret
Detachable Microphone Optional

Frequency Weighting:
A, C, Z

Response Time Constants:
Fast
Slow
Impulse
Peak

Exchange Rates:
3 or 5dB

Outputs:
AC/DC

Temperature Range:
Operating: 14°F to 122°F (-10°C to 50°C)
Storage: -47° F to 140°F (-20°C to 60°C)

Batteries:
9V Alkaline (25 Hrs)

Size:
1200: 2.8"x 9.2"x1.3" (7 x 23 x 3.3 cm)
2200: 2.8"x 7.0"x1.3" (7 x 18 x 3.3 cm)

Weight:
1200: 10.8 oz. (306 g)
2200: 10.3 oz. (293 g)

Standards:

1200:
Type 1, ANSI S1.43-1997 (R1997), IEC60651-1979 EN60651, IEC 60804-1985,
CE Mark, UL, CSA, EEx, SABS
Pending: MSHA 2G IEC/EN - 61672 - I - 1999 Committee Draft

2200:
Type 2, ANSI S1.43-1997 (R1997), IEC60651-1979 EN60651, IEC 60804-1985,
CE Mark, UL, CSA, EEx.
Pending: MSHA 2G IEC/EN - 61672 - I - 1999 Committee Draft