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VWR* Extra-Extra Loud Timer
Alarm that can be heard in the noisiest plant or laboratory, making it ideal for indoor or outdoor high sound zones. Two separate channels can be used in countdown, stopwatch, or any count-up/countdown mode from 99 hours, 59 minutes, 59 seconds to one second. When zero is reached the timer starts counting up to show time elapsed since alarm. Memory returns the display to the previously programmed countdown time at the touch of a button. Finger-size keys make it easy to set times and change channels. Timer has magnetic back for placement on any metal surface and flip-open easel for standing. Quartz crystal accuracy is 0.01%. Dimensions: 10.2Lx6.4Hx1.3Dcm (4x2 1/2x 1/2").
A serial numbered certificate is provided from an ISO 17025 calibration laboratory accredited by A2LA to indicate instrument traceability to standards provided by the National Institute of Standards and Technology.
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