Extech HD450-NIST Datalogging Heavy Duty Light Meter, Battery, Case Included, 1.6"W, NIST Certified

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 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

Extech 401025 Foot Candle/Lux Light Meter, Battery, 1.2"W Foot candle/lux meter measures light level to 5000FC (foot candles) and 50,000 lux with a 5% accuracy using a precision photo diode and color correction filter. It features fast/slow response time and an analog output (1mV per count) for capturing readings to a recorder. Complete with: 9v battery

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