The **DT-2234C+ Handheld Digital Laser Photo Tachometer** is a high-precision, non-contact instrument used to measure the rotational speed of machinery safely and accurately. It uses a **Class II laser** and reflective tape to detect rotation without touching moving parts. The device measures **2.5–99,999 RPM**, with a resolution of **0.1 RPM** below 1,000 RPM and **1 RPM** above 1,000 RPM. Accuracy is **±(0.05% + 1 digit)**, with a measuring distance of **50–500 mm**. It features a large 5-digit LCD, automatic memory for **MAX, MIN, and last readings**, low-battery indication, and an ergonomic design. It is suitable for **industrial maintenance, HVAC systems, automotive testing, pumps, fans, motors, conveyors, and other rotating equipment**.