Extech RH390-NIST Precision Psychrometer, Case Included, 2 NIST Certified

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

Extech EX900 ExStik® 4-in-1 Chlorine, pH, ORP & Temperature Kit Complete kit allows you to test pH, chlorine, ORP and temperature with all the necessary accessories. Kit Includes: CL200 chlorine meter Flat surface pH electrode Flat surface ORP electrode Extech reagent tablets (50 tests) pH 4, 7 buffer solutions and rinse solution Weighted base with sample cups and caps 4 x CR2032 batteries 48 In. neck strap and case

This RF EMF strength meter monitors high frequency radiation in the 50 MHz to 3.5 GHz range. Ideal for mobile phones, cell phones, base stations, locating RF hot spots, wireless network (Wi-Fi) RF detection, RF electro smog detection and microwave leakage. The meter comes complete with a 9v battery and carrying case. Features: Non-directional measurement with 3-channel (Tripak) measurement probe Max hold and average functions and manual store/recall of up to 99 data sets Audible alarm with a user-selectable threshold

Extech MO290 Pinless Moisture Psychrometer & IR, Replacement Sensor Tips, Case Included 8-in-1 meter that combines a Pin/Pinless Moisture Meter with a patented built-in InfraRed Thermometer. Additional measurements include: Temperature, Humidity, Grains per Pound, Dew Point, Vapor Pressure and Condensation Point. Complete with: Pin moisture probe 9V battery Case

Extech 461995 Combination Contact/Laser Photo Tachometer, Digital, Black, RPM Provides wide RPM (photo and contact) and linear surface speed (contact) measurements. Narrow beam laser for non-contact measurements up to 6.5 Ft. from the target for improved safety and accessibility. Characters in the display reverse direction depending on measurement mode you are using. Complete with: Tips and wheel for rpm or linear surface speed 4 x AA batteries Reflective tape Carrying case