International Instruments Industries

�� Key Specifications

Measurement Range:
• 60 RPM – 50,000 RPM (rotational speed)
• 6 m/min – 5000 m/min (surface speed)

Display:
• 5‑digit 10 mm red LED display — easy to read in workshop environments

Accuracy:
• ± 0.05 % + 1 digit

Resolution:
• 0.1 up to 1000 RPM / 1 above 1000 RPM
• 0.01 up to 100 m/min / 0.1 above 100 m/min

Sampling & Time Base:
• 1‑second sampling rate
• Quartz crystal controlled time base for stable measurements

• Runs on 4 × 1.5 V AA batteries
• Auto shut‑off to save battery
• Low battery indicator (“LoBat”) when voltage is low
• Battery life ~90 hrs (alkaline), ~30 hrs (carbon zinc)

Operating Temp: 0 °C to 60 °C

Size & Weight:
• Approx. 70 × 200 × 40 mm
• Weight around 320 g (with battery)

• Automatically stores Last, Max & Min values
• Stored values can be recalled up to ~120 seconds after measurement

• Male rubber contact tips (2)
• Female rubber contact tips (2)
• Peripheral rubber contact tip
• Reflective tape (marks)
• Padded carrying case
• User manual

Ideal for checking speed in automotive, industrial machinery, maintenance, manufacturing, labs, aviation & marine equipment where direct shaft or roller speed measurement is needed.

Additional Information:

• Item Code: HTM590
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: AHMEDABAD
• Production Capacity: 25NOS IN STOCK
• Delivery Time: READY STOCK
• Packaging Details: 1NOS PACKING

Here are the details for the Lutron DT‑2230 Digital Tachometer (pocket‑type digital tachometer used to measure rotational speed (RPM) and surface speed):

• Dual Mode Measurement: Combines Photo (non‑contact) and Contact tachometer functions in one handheld tool.

• Wide RPM Range:

  • Photo (non‑contact): ~5 to 99,999 RPM

  • Contact: ~0.5 to 19,999 RPM

• Surface Speed Measurement: Can measure linear surface speed in:

  • m/min: 0.05 – 1,999.9

  • ft/min: 0.2 – 6,560

  • in/min: 2.0 – 78,740

• Display: Large LCD (about 32 × 28 mm) with 5 digits for clear readings.

• Resolution:

  • RPM: 0.1 RPM for readings < 1,000 RPM; 1 RPM for ≥ 1,000 RPM.

  • Surface speed resolutions vary by unit (e.g., 0.01 m/min, 0.1 ft/min, 0.1 in/min) where applicable.

• ± (0.1% of reading + 1 digit) — provides good precision for industrial and workshop applications.

• Memory recall: Automatically stores and recalls last, max, and min readings.

• RS‑232 serial interface: For connection to a PC or data logger (with optional cable/software).

• Uses a laser/optical detecting source for safe RPM measurements where contact is difficult or risky.

• Typical detecting distance up to ~1.5 m (varies by environment and reflective mark quality).

• 4 × 1.5 V AAA (UM4) batteries power the unit.

• Lightweight ABS housing (~182 g with batteries) — durable and portable.

• Operating temperature: 0 °C to 50 °C

• Humidity: < 80 % R.H.

Useful for checking RPM on motors, fans, pumps, spindles, and other rotating machinery in workshops, maintenance, production lines, and quality control.

Additional Information:

• Item Code: DT2230
• Delivery Time: READY STOCK
• Packaging Details: 1NOS PACKING

✔ Non-Contact Measurement

• Measures RPM without physical contact, enhancing safety and convenience.

• Uses laser/infrared detection and reflective tape on the target.

• Optimal detecting distance: ~50 mm to 500 mm.

✔ Wide RPM Range

• Low end: ~2.5–5 RPM

• High end: Up to 99,999 RPM (with autoranging).

✔ Display & Memory

• Large 5-digit LCD with backlight for easy reading in various light conditions.

• Memory functions: stores Max, Min, and Last measured values (with ability to save ~96 sets of data on some units).

✔ Accuracy & Resolution

• Accuracy: ±(0.05% + 1 digit).

• Resolution:

  • 0.1 RPM (lower range)

  • 1 RPM (higher range)

  • Also supports Hz readings with suitable conversion.

✔ Ergonomic & Durable

• Lightweight, rugged ABS housing for industrial use.

• Handheld, portable form factor.

This tachometer is used for:

• Machinery maintenance & inspection

• Checking motor/engine RPM

• Laboratory and production line measurements

• Automotive diagnostics
  All without stopping the equipment or touching the rotating part.

• Reflective tape must be applied to the rotating surface so the sensor can detect and count reflections accurately.

• Batteries and occasional calibration are required for consistent performance.

Additional Information:

• Item Code: KM2234BL
• Pay Mode Terms: T/T (Bank Transfer),Other
• Port of Dispatch: AHMEDABAD
• Delivery Time: READY STOCK
• Packaging Details: 1NOS PACKING

• Type: Non‑contact digital tachometer (measures rotational speed in RPM)

• Range: 1 to 99,999 RPM (with reflective target/sticker) — suitable for slow to high‑speed rotating parts

• Accuracy:
  • ±1 RPM for speeds below 5,000 RPM
  • ±0.05 % of reading above 5,000 RPM

• Resolution:
  • 0.1 RPM up to ~5,999 RPM
  • 1 RPM at and above ~6,000 RPM

• Display: 5‑digit LCD display for clear RPM readout

• LED sensing indicator: Shows when a valid reflection is detected

• Memory: Retains the last reading for review after measurement

• Non‑contact optical measurement: Uses a reflected light beam + reflective sticker/mark on the rotating object to detect speed

• Power: Battery‑operated (6 V DC) using 4 × 1.5 V AA batteries

• Construction: Portable, lightweight ABS plastic enclosure

• Size: Approx. 72 × 170 × 38 mm (W × H × D)

• Calibration: Supplied with NABL‑traceable calibration certificate

• Measuring RPM of motors (AC/DC)

• Speed checking on pumps and fans

• Generators and engine shafts

• Any rotating industrial machine where contactless speed measurement is needed

1. Stick a reflective tape/mark on the rotating object.

2. Point the tachometer sensor at the reflective mark within the detection range.

3. The device emits a light beam; each reflection from the mark is counted and converted into RPM.

✔ High RPM range up to ~99,999
✔ Good resolution and accuracy for industrial use
✔ Portable and battery‑operated
✔ Memory retention for last reading

Additional Information:

• Item Code: EAPL2001B
• Delivery Time: READY STOCK
• Packaging Details: 1NOS PACKING

• Measurement Methods:
  • Contact RPM measurement – using rubber contact tips
  • Photo/optical RPM measurement – using reflective tape and light sensor

• Speed Range:
  • Contact side: 60–50,000 RPM
  • Photo side: 60–100,000 RPM
  • Surface speed and other modes supported within respective ranges

• Display:
  • 5-digit RED LED display, digits ~10 mm high for clear reading

• Accuracy:
  • ±0.05 % plus 1 digit

• Resolution:
  • 0.1 RPM for lower speeds (< 1000 RPM), 1 RPM above
  • Surface speed resolution per specification

• Memory Functions:
  • Automatically stores Last, Max, and Min values (recallable up to ~120 sec)

• Sampling Rate:
  • ~1 second per reading

• Measuring Distance (Photo Mode):
  • ~75 mm to 300 mm between sensor and reflective mark

• Power Source: 4 × AA batteries

• Battery Life:
  • Contact mode: up to ~90 hrs (alkaline)
  • Photo mode: ~24 hrs (alkaline)

• Auto Power-Off: Included

• Low Battery Indicator: Yes

• Operating Temperature: 0 °C to 60 °C (32 °F to 140 °F)

• Size / Weight: ~70 × 200 × 40 mm; ~320 g with battery

• Included:
  • Multiple rubber contact tips (male/female/peripheral)
  • Reflective tape for photo measurements
  • Padded carrying case
  • User manual

The HTM 890 is suited for:
✅ Motors and gear RPM checks
✅ Pumps, fans, blowers and compressors
✅ Manufacturing and maintenance areas
✅ Automotive or laboratory speed testing
✅ Surface speed measurements (rollers, conveyors)

Additional Information:

• Item Code: HTM-890
• Production Capacity: 100 PEC. IN STOCK
• Delivery Time: READY STOCK
• Packaging Details: 1NOS PACKING

The HTM 560 is a non-contact type digital tachometer designed to measure the rotational speed (RPM) of motors, shafts, and other rotating equipment without physical contact — typically using reflected light from a reflective mark on the target.

• Measurement Range: 60 RPM to 100,000 RPM — suitable for a very wide range of speeds.
• Resolution:

• 0.1 RPM from 0–1000 RPM

• 1 RPM above 1000 RPM

• Accuracy: ±(0.05 % of reading + 1 digit) — high precision for a handheld tachometer.
• Display: 5-digit 10 mm red LED readout.
• Sampling Rate: ~1 second per reading.

• Measuring Distance: ~75 mm (3″) to 300 mm (12″) from the target — ensures flexible stand-off distance for optical measurement.
• Memory Recall: Automatically stores Last, Max, and Min values (recallable for up to ~120 sec).

• Power: 4 × 1.5 V AA batteries with auto shutdown and low battery indicator.
• Battery Life: ~90 hrs (alkaline) / ~30 hrs (carbon-zinc).

• Operating Temperature: 0 °C to 60 °C (32 °F to 140 °F).
• Size & Weight: Approx 70 × 200 × 40 mm, ~270 g with batteries.
• Accessories: Reflective tape for non-contact detection, padded carrying case, user manual.

Non-contact operation typically uses a photo/optical reflective sensor: a reflective tape (marker) is placed on the rotating part and the tachometer senses each reflection to compute RPM without touching the surface — safer for high-speed or hazardous machinery.

✔ Automotive inspections
✔ Industrial machinery maintenance
✔ Production line diagnostics
✔ Laboratory and R&D
✔ Aviation and marine equipment checks

Additional Information:

• Item Code: HTM560

Digital tachometer kusam-meco 2234BL

· Display: 5 digits, lcd display with function annunciation.

· Test range: autoranging.

· Range: 5 - 99,999 rpm.

· Memory: last value, max value, min value.

· Detecting distance: 50 to 500mm.

Instrument is supplied with carrying case, instruction manual, 2pcs of reflecting tape and installed 4 x 1. 5v aa batteries.

Additional Information:

• Item Code: 2234BL
• Pay Mode Terms: T/T (Bank Transfer),Western Union
• Port of Dispatch: Ahmedabad
• Production Capacity: As per customer requirement
• Delivery Time: Ready stock upto 10Nos