Lutron DT-2234B Digital Photo Tachometer -Non-Contact RPM Meter

The Lutron DT-2234B Digital Photo Tachometer is a high-precision, non-contact instrument engineered for accurate measurement of rotational speed (RPM) in motors, shafts, fans, and other rotating machinery. Utilizing advanced photoelectric sensing technology, it allows users to measure speed safely and efficiently without physical contact, reducing risk and improving convenience.

Designed for professionals who demand reliability and accuracy, this tachometer offers a wide measurement range, excellent resolution, and stable performance backed by quartz crystal time base technology. Its large LCD display ensures easy reading, while built-in memory functions enable quick recall of maximum, minimum, and last measured values.

With its compact, lightweight design and durable ABS housing, the DT-2234B is ideal for industrial maintenance, automotive diagnostics, laboratory research, quality control, and field service applications.

⭐ Key Advantages

• Non-contact optical measurement for safe operation
• Wide RPM measurement range up to 99,999 RPM
• High accuracy and fine resolution
• Large, clear LCD display
• Memory recall for Max / Min / Last values
• Stable quartz crystal time base
• Portable, rugged, and easy to operate

📌 Detailed Specifications

Model: Lutron DT-2234B
Measurement Type: Non-Contact Photo Tachometer

Measurement Performance

• Measurement Range: 5 – 99,999 RPM
• Resolution:
  • 0.1 RPM (below 1,000 RPM)
  • 1 RPM (1,000 RPM and above)
• Accuracy: ±(0.05% of reading + 1 digit)

Optical System

• Detection Distance: Approx. 50 mm – 150 mm (up to 300 mm depending on conditions)
• Light Source: Infrared LED photo sensor

Display & Functions

• Display Type: 5-digit LCD
• Sampling Time: Approx. 1 second (RPM dependent)
• Memory Functions: Last Value, Maximum Value, Minimum Value

Electrical & Power

• Time Base: Quartz Crystal Oscillator
• Power Supply: 4 × 1.5V AA Batteries
• Power Consumption: Low power design for extended operation

Mechanical & Environmental

• Housing Material: High-impact ABS plastic
• Operating Temperature: 0°C to 50°C
• Operating Humidity: Less than 80% RH

Physical Characteristics

• Dimensions: Approx. 190 × 72 × 37 mm
• Weight: Approx. 220 – 250 g (with batteries)

Standard Accessories

• Reflective tape
• Carrying case
• User manual

🏭 Typical Applications

• Motor and engine speed measurement
• Industrial machinery maintenance
• Automotive diagnostics
• Fan and blower RPM testing
• Quality control inspections
• Laboratory and R&D testing

✅ Why Choose Lutron DT-2234B?

Lutron is a globally recognized brand in test and measurement instrumentation. The DT-2234B combines accuracy, durability, and ease of use into one reliable tool, making it a trusted choice for technicians, engineers, educators, and maintenance professionals.