Extech 407744 94 dB Sound Calibrator, Analog, Aluminum, 9V battery

Extech 407026-NIST Heavy Duty Light Meter W/PC Interface, Battery, 1.3"W, NIST Certified Heavy duty light meter has 4 lighting type settings for enhanced accuracy (Tungsten/daylight, florescent, sodium, mercury). Additional features include: data hold, min/max/average, auto power off and a % reading of the differential from a reference point. Built-in RS-232 interface with optional data acquisition software and datalogger. Includes: NIST Cert 9v battery Remote light sensor on a 46 In. cable with protective cover and a protective holster with stand

Combines three displays for time, temperature and humidity. Attractive indicator is ideal for desktop or wall mounting applications. Provides max/min readings for temperature and humidity. Measuring ranges include: temperature from 14 to 140°F (-10 to 60°C) and humidity from 10 to 99% RH. Clock function automatically displays 12 hour time with AM/PM indication when in °F mode and displays in 24 hour time when in °C mode. Memory with reset function stores minimum and maximum measurements. Includes: Built-in tilt stand Wall mounting bracket AAA battery

Extech 407780A Integrating Sound Level Datalogger, Plastic, 4 AA Batteries W/ USB Features: 4-digit multifunction LCD with analog bargraph Precise linearity over wide range (100dB) Display modes: SPL, SPL MIN/MAX, SEL, and Leq Programmable integrating time A and C Frequency weighting Impulse/Fast/Slow response settings Datalogging function records up to 32,000 records Real time calendar/clock Analog and alarm output features can be used to connect with Frequency analyzers, chart recorders, external dataloggers, and sound level alarms Built-in USB interface with included Windows® ...

Type 2 Sound Level Meter Kit meets ANSI and IEC 651 Type 2 standards. Ideal for noise surveys in the workplace, installing fire alarms and speaker systems and enforcing noise ordnances. Measures from 35 to 130dB in two ranges with an accuracy of ±1.5dB. Data hold and Max hold functions. Backlit display allows use in dimly lit areas. Kit Includes: 407732 sound meter 407744 94dB Sound Calibrator Microphone wind screen 3 x 9V batteries Hard carrying case

Extech 407732-KIT-NIST Low/High Range Sound Level Meter Kit, Plastic, 9V battery, NIST Certified Type 2 Sound Level Meter Kit meets ANSI and IEC 651 Type 2 standards. Ideal for noise surveys in the workplace, installing fire alarms and speaker systems and enforcing noise ordnances. Measures from 35 to 130dB in two ranges with an accuracy of ±1.5dB. Data hold and Max hold functions. Backlit display allows use in dimly lit areas. Kit Includes: 407732 sound meter 407744 94dB Sound Calibrator Microphone wind screen 3 x 9V batteries NIST Cert Hard carrying case