Test & Measurement Instruments

Megger Insulation Tester, 500V/1000V/2500V/5000V

$1,132.30

SKU: ATO-IRT-UT513A

Accurate and reliable insulation resistance tester has five test voltages of 500V, 1000V, 2500V, and 5kV, measuring resistance range up to 1000G ohm. Large backlit LCD display, easy to read. Battery-powered megger is portable, lightweight and affordable, best for for electrical equipment diagnostic testing and maintenance.

Micro Gas Mass Flow Meter, 100-5000sccm/1-100SLPM

$788.88

SKU: ATO-FLOW-MFM

The micro gas mass flow meter tests air, CO₂, N₂, O₂, and Ar. With options for RS485 communication or analog voltage output ranging from 0.5 to 4.5V DC. It offers a 50:1 range ratio and delivers high accuracy with a measurement tolerance of ±(2.0 + 0.5 FS), achieving a 0.8% accuracy overall. The meter has repeatability at 0.80% and zero stability of ±0.1% FS. Its output drift is minimal, at ±0.12%/°C.

Mini Backlight Digital Protractor, Digital Bevel Box

$29.86

SKU: ATO-DP-569L

Mini digital protractor with LCD backlight display, measuring range 0 to 360 degrees, small and lightweight, easy to carry, providing fast measurement for woodworking, construction, machinery, telecommunications, automotive and other industries.

Mini Digital Thickness Gauge

$71.49

SKU: ATO-TG-SD203

Mini digital thickness gauge for sale at factory price, with 0-10mm or 0-20mm measuring range, flat head, pointed head and curved pointed head available. This portable digital thickness gauge is widely used for measuring the thickness of different materials.

Mini-Pro OTDR Fiber Optic Tester

$998.62

SKU: ATO-OTDR-2800D

Mini pro OTDR fiber tester with dual-wavelength 1310/1550nm, dynamic range 22/20dB, can quickly and accurately detect the location and type of fiber optic cable fault points. The fiber optic tester has 6 functions including an optical time domain reflectometer optical power meter / visual fault location/stable light source/RJ45 line sequence measurement/flashlight, users can quickly and accurately measure without setting.

Multifunction Network Cable Tester, RJ45/RJ11

$98.76

SKU: ATO-NCT-868

The multifunction network cable tester is designed to test RJ11 and RJ45 terminated cables for miswiring, open and short circuit faults. ATO ethernet cable tester uses high quality materials and advanced circuitry to ensure accurate and reliable testing every time.

Multi-Functional OTDR Fiber Optic Tester

$1,698.75

SKU: ATO-OTDR-OT5F

Multifunctional OTDR fiber optic tester with 5-inch HD touch screen, wavelength range 1625nm, dynamic range 20dB, single mode fiber type. Optical time domain reflectometer is mainly used to measure fiber optic cable length, loss, fusion quality and other parameters, for fiber optic end-face testing, fiber to the home, especially for FTTH optical network testing to provide a comprehensive solution.

Network LAN Cable Wire Tracker Tester, RJ45, RJ11

$198.76

SKU: ATO-NCT-306

The network lan cable tracker is used to test network cables, telephone cables, coaxial cables, USB connections, crossovers and crosstalk. Network cable tester has a self-test function that automatically compensates for changes in battery power, regardless of ambient temperature changes. ATO network cable wire tracker designed to identify faulty cables quickly and accurately, saving users time and money on costly repairs.

Network/Ethernet Cable Tracer, RJ45, RJ11

$184.96

SKU: ATO-NCT-683

Network cable tracer is an intelligent cable tracer consisting of a transmitter and a receiver. Receiver RJ45 interface for short-circuit/break/sequence detection of network cables, transmitter RJ45 interface for cable finding/pairing detection of network cables. The ethernet cable tracer is suitable for routine network communication maintenance, integrated cabling network projects and other metal conductor wiring projects and maintenance work.

Optical Time Domain Reflectometer, OTDR Machine

$1,989.76

SKU: ATO-OTDR-FC300

Optical time domain reflectometer price reasonable, light source 1310/1550nm, dynamic range: 30/28dB, 32/30dB, 100-120km accurately testing, 5.6 inch LCD touch screen, accurate measurement of fiber optic cables, otdr machine support multiple languages, English, Spanish and Chinese.

Paperless Recorder 1/4/8/12/18 Channel Output RS485

$556.24

SKU: ATO-PLR-CH18

3.5 inches paperless recorder can collect, calculate, display, and record data such as temperature, pressure, current, voltage and other input signals. It has different data display forms: Digital Display, Bar Graph, Real-time Curve, Alarm, History, etc. Paperless recorder with 1 USB data interface has optional AC/DC power supply, 18 input channels, 4 alarm outputs and 1 RS485 communication output.

Personal Nuclear Radiation Detector, Personal Dosimeter

$171.54

SKU: ATO-PRD-FS300

Economical price and high sensitivity personal nuclear radiation meter for sale online. Energy range of personal dosimeter between 30 keV and 1.5 MeV. Nuclear radiation detector has built-in multi language operation interface. The personal nuclear radiation detector can freely set the dose rate alarm threshold and the amount of data.

PID Temperature Controller, Dual Digital, Universal Input

$69.85

SKU: ATO-TEMPC-2D

PID temperature controller has dual digital 4 LED display, on-off control/PID control, support universal inputs (Cu50/Pt100/K/E/J/T/S/R, 4-20mA, etc.), 4 kinds of output mode for select (relay output/SSR output/SCR/transmitter output 4-20mA), and additional output RS485/232 communication output, timer relay, etc.

Pocket Colorimeter for Lab, Medical, Caliber 4mm/8mm

$2,584.61

SKU: ATO-CM-NH310

Low cost pocket colorimeter for lab and medical, 4mm/8mm caliber, USB port, LED screen operation pane with clear data, widely used in papermaking, printing, ceramics and chemical industry.

Pocket Colorimeter, Caliber 4mm

$1,036.46

SKU: ATO-CM-NR110

Low price pocket colorimeter for sale, caliber φ4mm, measurement stability and accuracy, large screen display for easy reading, DC power connector USB/RS232. Colorimeter is widely used in paper, printing, ceramics, chemical, textile and dyeing industries.

Portable Air Quality Monitor, PM2.5/HCHO/TVOC/Temperature/Humidity

$191.46

SKU: ATO-AIR-DM502

Portable air quality monitor for home/office/car, measuring PM2.5, PM1.0, PM10, HCHO, TVOC, AQI, temperature and humidity and real-time displaying on the LCD screen. Rechargeable Li-battery, compact size and light weight, easy to carry. Easy operation, quick response and accurate detection.

Portable Carbon Dioxide (CO2) Infrared Gas Detector, 0 to 2000/5000/10000 ppm

$969.23

SKU: GD200-CO2

Portable carbon dioxide (CO2) infrared detector adopts high accuracy sensor, measuring range available with 0-2000ppm, 0-5000ppm, 0-10000ppm, or 0-10%VOL, 0-20%VOL, 0 to 100% VOL, with LCD display, audible, visual & vibrating alarm, compact size, easy to carry and operate.

Portable Chlorine (Cl2) Gas Detector, 0 to 10/50/100 ppm

$846.15

SKU: GD200-Cl2

Portable Chlorine (Cl2) gas detector with built-in micro pump has measuring ranges of 0 to 10ppm / 20ppm / 50ppm / 100ppm for your selection, and give alarms with sound, light and vibration. Chlorine gas monitor uses high precision sensor, easy operation, high reliability and low price.

Portable Colorimeter, Caliber 8mm

$1,138.46

SKU: ATO-CM-NH300

High quality portable colorimeter caliber 8mm, design with USB port, digital LCD display, built-in clock memory storage system, real-time storage of measurement and correction data, good value for money.

Portable Combustible Gas Detector, 0 to 100%LEL

$410.34

SKU: GD200-LEL

Favorable price combustible gas detector, 0 to 100% LEL, with sound, light and vibration alarm, easy to use and convenient to carry around, high accuracy and reliability, best portable gas monitor for detecting the flammable gas.