Extech EA33-NIST Light Meter W/Memory, Battery, 1.4"W, NIST Certified NIST Certified

The R8100SD has a wide measurement range up to 100,000 Lux (10,000 Foot-candles) and features Data hold, Max/Min functions, and an easy-to-read backlit LCD display. Using a SD card (max 16GB), a user can manually record up to 99 readings or automatically by selecting a desired sampling rate from 1 to 3600 seconds. Quickly generate an Excel file with raw data, all without the use of software. Optional accessories include a tripod and AC adapter for continuous long-term monitoring. Features: Measures ambient light levels in Foot-candles or Lux Photo diode and colour correction filters meet ...

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

The Triplett Model EM400 8-in-1 Environmental Meter measures Air Temperature, Humidity, Type K Temperature, Wet Bulb, Dew Point, Heat Index, Sound, and Light. Readings are displayed on the dual backlit LCD that automatically reverses when taking Light measurements. It features a concise and compact button arrangement for easy one-hand operation. Sound level readings meet IEC 61672-2013 class 2 sound level accuracy (±1dB@1kHz and the high precision humidity sensor has a fast response time. Temperature readings are °F/°C switchable. Min/Max records highest and lowest readings. Data Hold ...

The Triplett Model EM300 10-in-1 Environmental Meter measures Air Temperature, Humidity, Type K Temperature, Wet Bulb, Dew Point, Heat Index, Air Velocity, Air Flow, Wind Chill, and Light. Readings are displayed on the dual backlit LCD that automatically reverses when taking Light measurements. It features a concise and compact button arrangement for easy one-hand operation. The low-friction ball bearing mounted wheel design provides high accuracy and the high precision humidity sensor has a fast response time. Temperature readings are °F/°C switchable. Min/Max records highest and lowest ...

Gardeners can conveniently test their moisture, light, and pH levels with the handy Active Air 3-Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moist); light readings range from 0 (low light) to 2000 (very strong light); accurate pH readings range between pH 3.5 and 8. The durable, easy-to-read tester is suitable for indoors or out and needs no batteries to operate. Remove from soil and clean prongs after each use to ensure the moisture meter stays in top performance shape.