蒙納多（美國monarch instrument）Pocket Tach 99光電轉速表是一款數字、電池供電的便攜式非接觸式光學轉速計（紅色 LED），它使用 LED 光源在距離反光帶目標zui遠 36 英寸處工作。符合人體工程學的設計允許同時安全、直接地觀察旋轉目標和顯示器，同時為單手操作提供防滑橡膠表面。

Basic non-contact Optical Tachometer
 Pocket Tach 99 is a digital, battery-powered portable non-contact optical tachometer (red LED), which operates up to 36 inches from a reflective tape target using an LED light source. The ergonomic design allows safe, direct line-of-sight viewing of both the rotating target and the display at the same time while providing a non-slip rubber surface for single-hand operation. Pocket Tach Tach99 is the value leader of the world-class Pocket Tach Series from Monarch.

Pocket Tach 系列儀器都提供的人體工程學設計，讓您可以同時安全地觀察顯示器和旋轉目標。
 操作距離可達 36 英寸*
 LED光源
 易于使用的單手操作

 All Pocket Tach Series instruments provide a unique ergonomic design that allows you to safely observe both the display and the rotating target at the same time.
 Operating distance up to 36 inches*
 LED light source
 Easy-to-use single-handed operate

pt99手持式光電轉速表技術參數：