Measuring Instrument

We are a leading Manufacturer of uni-t a25d air quality meter and uni-t ut521 digital earth testers from New Delhi, India.

UNI-T A25D Air quality meter

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₹ 5250 / Piece Get Latest Price

Product Brochure
BrandUNI-T
Power-A25M: 520mAh Li-ion battery; A25D: 1500mAh Li-ion battery
DisplayA25M: 35 x 35mm; A25D: 42 x 65mm
Product sizeA25M: 64 x 60 x 28mm; A25D: 75 x 55 x 130mm
Product net weightA25M: 85g; A25D: 230g
Warranty:As per Brand policy

Minimum order quantity: 1 Piece

A25 series air quality meters are used to measure PM2.5 concentration. A25 series can be used in homes, offices, hotels, schools, factories, hospitals, restaurants, and other public places.

  • Automatic baseline correction
  • Audible and visual alarm
  • Low battery indication
  • Auto power off
  • Backlight

UNI-T UT521 Digital Earth Testers

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₹ 12400 / Piece Get Latest Price

Product Brochure
Measurement Range2000 Ohm
Display Count2000
Data HoldYES
DisplayLCD Backlight
Auto Power OffIn 10 minutes

Minimum order quantity: 1 Piece

UT520 series can perform precise 3-wire and simple 2-wire earth resistance measurement for power and electrical systems, lightning protection equipment, and ground system of all electrical equipment.

Earth Resistance (Ω)

  • 0~20Ω, ±(2%+10)
  • 0~200Ω, ±(2%+3)
  • 0~2000Ω, ±(2%+3)

 Features

  1. Over range indication, test lead connection alarm
  2. EST button for fast capture of measurement values
  3. 20-group data storage/recall
  4. Backlight
  5. Data hold
  6. Auto power off/battery check
  7. Earth voltage measurement

Includes High Quality- Original UNI-T Earth Testing Kit

Includes calibration/conformity report

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Contact Us

Ramit Verma (Owner)
Atal Tools
No. 1300-1318/23, Balaji Market, Sultan Singh Building, Behind Bata Showroom, Kashmere Gate
New Delhi - 110006, Delhi, India

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