Description

Introduction— Smart sensor AR926 Non-Contact Tachometer

The SMART SENSOR AR926  Non-Contact Digital Tachometer AR926 gives engineers, technicians, and maintenance teams a fast, safe, and highly accurate way to measure rotational speed. This non-contact digital tachometer uses a focused laser beam and reflective tape technology to capture RPM readings from a safe distance — no physical contact with the rotating surface required. The AR926 measures speeds from 2.5 to 99,999 RPM with ±0.05% accuracy, making it the go-to choose for motor testing, engine diagnostics, fan speed checks, conveyor monitoring, and precision industrial maintenance across Bangladesh.

Unlike traditional contact tachometers, the AR926 eliminates measurement risk on high-speed rotating parts. A bright LCD display with backlight shows readings clearly even in low-light environments. The device stores the last, maximum, and minimum readings so you always have a complete speed profile at your fingertips.

 

Specifications digital tachometer Bangladesh

Parameter	Specification
Model	SMART SENSOR AR926
Measurement Type	Non-Contact (Laser Optical)
Measuring Range	2.5 – 99,999 RPM
Accuracy	±0.05%
Resolution	0.1 RPM (below 1,000 RPM); 1 RPM (above 1,000 RPM)
Sampling Time	0.8 seconds
Display	5-digit LCD with backlight
Memory Function	Last value / Maximum value / Minimum value
Laser Type	635–670 nm visible red laser diode
Laser Safety	Class II laser (< 1 mW output)
Measurement Distance	50 mm to 500 mm (recommended)
Operating Temperature	0°C to 50°C (32°F to 122°F)
Storage Temperature	-10°C to 60°C (14°F to 140°F)
Operating Humidity	Below 80% RH (non-condensing)
Power Supply	1 × AAA 1.5 V battery
Battery Life	Approx. 10 hours continuous use
Low Battery Indicator	Yes
Auto Power-Off	Yes (after ~60 seconds idle)
Housing Material	ABS plastic
Dimensions	Approx. 145 × 70 × 45 mm
Weight	Approx. 140 g (with battery)
Accessories Included	5 pcs reflective tape, 1× AAA battery, wrist strap, carry pouch, user manual

Key Features laser RPM meter

1. Non-contact laser measurement — no need to stop or touch the rotating part
2. Wide RPM range: 2.5 to 99,999 RPM covers motors, engines, fans, and turbines
3. ±0.05% high accuracy with 5-digit LCD resolution
4. Backlit LCD display for clear reading in dark or dim environments
5. Memory function stores last, maximum, and minimum RPM values
6. Single AAA battery operation with low-battery indicator
7. Ergonomic pistol-grip design for comfortable one-hand operation
8. Includes 5 pre-cut reflective tape strips — ready to use immediately
9. Lightweight and compact — fits in a tool bag or shirt pocket
10. Automatic power-off saves battery life during idle periods
11. Sampling time of 0.8 seconds for near-instant readings
12. Durable ABS housing resists workshop dust and minor impacts

 

Applications SMART SENSOR AR926

The AR926 non-contact digital tachometer serves a broad range of industries and use cases:

1. Electric motor RPM testing in manufacturing plants and workshops
2. Diesel and petrol engine speed diagnostics in automotive service centres
3. Fan and blower speed monitoring in HVAC and ventilation systems
4. Conveyor belt and roller speed checking in production lines
5. Lathe, milling machine, and CNC spindle speed verification
6. Pump and compressor speed maintenance in water treatment and oil facilities
7. Textile machinery speed control in garment factories
8. Paper and printing press roll speed measurement
9. Educational labs and technical training centres for physics demonstrations
10. Quality control checks on rotating parts before shipment

Who Uses This non-contact tachometer price BD

1. Industrial maintenance engineers and technicians
2. Automotive mechanics and service workshop staff
3. HVAC engineers monitoring fan and blower speeds
4. Electrical engineers testing motor performance
5. Factory production and quality control supervisors
6. Garment and textile factory maintenance teams
7. University and polytechnic lab instructors
8. Machine operators who need quick speed verification
9. R&D engineers during product testing and development
10. Small workshop owners and freelance mechanics

Frequently Asked Questions (FAQ) digital tachometer Bangladesh

Q1. Does the AR926 work without touching the rotating part?

Yes. The AR926 uses a laser beam and reflective tape to measure RPM from a distance of 50 mm to 500 mm. You never touch the spinning surface, which keeps you safe and prevents measurement errors. Smart sensor AR926 Non-Contact Tachometer,

Q2. What surfaces does the reflective tape stick to?

The included adhesive reflective tape sticks to metal shafts, plastic pulleys, rubber rollers, and most smooth surfaces. Clean the surface with a dry cloth before applying the tape for best adhesion. Smart sensor AR926 Non-Contact Tachometer,

Q3. Can the AR926 measure very slow or very fast rotating parts?

Yes. The AR926 covers a wide range from 2.5 RPM (very slow, like a slow conveyor) all the way to 99,999 RPM (extremely fast, like a high-speed spindle). This range suits almost every industrial application.

Q4. How long does the battery last?

One AAA 1.5 V battery provides approximately 10 hours of continuous use. The auto power-off feature activates after about 60 seconds of inactivity, which significantly extends battery life in regular use.

Q5. Does the laser harm my eyes?

The AR926 uses a Class II laser with output below 1 mW. Avoid looking directly into the laser beam. Normal working distances are perfectly safe, but you should never point the laser at eyes as a precaution.

Q6. Can I use the AR926 outdoors?

Yes, as long as temperatures stay between 0°C and 50°C and humidity stays below 80% RH. Avoid rain, direct water exposure, and dusty environments that may block the laser path.

Q7. Does the device show the highest RPM it measured?

Yes. The memory function stores the last reading, the maximum RPM recorded, and the minimum RPM recorded during a session. You can recall these values at any time using the mode button. Smart sensor AR926 Non-Contact Tachometer,

Q8. Is the AR926 available for delivery outside Dhaka?

Yes. astzbd delivers the AR926 tachometer to all major cities and districts in Bangladesh, including Chittagong, Sylhet, Rajshahi, Khulna, Barisal, and Rangpur via courier service.

Q9. What comes inside the box?

The package includes one AR926 tachometer unit, five pre-cut reflective tape strips, one AAA battery, a wrist strap, a carry pouch, and a printed user manual.

Q10. What warranty does the AR926 carry?

The SMART SENSOR AR926 comes with a manufacturer warranty against defects in materials and workmanship. Contact the astzbd support team immediately if you receive a faulty unit and we will arrange a replacement or repair.

 

Why Buy from astzbd Smart sensor AR926 Non-Contact Tachometer

1. 100% genuine SMART SENSOR products with manufacturer warranty
2. Fast delivery across Bangladesh including Dhaka, Chittagong, Sylhet, and Rajshahi
3. Dedicated after-sales support — our technical team answers your questions
4. Secure online checkout with bKash, Nagad, Rocket, and bank transfer options
5. Competitive pricing with no hidden charges
6. Easy returns and exchange policy within 7 days of delivery
7. Trusted by thousands of engineers, technicians, and factories across Bangladesh
8. Product comes fully tested and ready to use — batteries included