This precision calibrator is compatible with any instrument with a 1/2" diameter mic element housing. Essential for maintaining the accuracy of any portable sound level meter, this unit generates a precise 1KHz tone, at exactly 94dB. Single slide switch provides on/off/battery test functions
- housed in a rugged, die-cast aluminium alloy housing
- Requires two 9V alkaline batteries
- Compact
测试与测量, 维护与修理
