Hand-Held Humidity and Temperature Meter HM34
"Ideal for spot checking humidity levels,, Fast response with ±2% accuracy....
Incorporates Vaisala HUMICAP Sensor that provides high accuracy, excellent long-term stability, neglible hysteresis, and insensitivity to dust and most chemicals."
Features Include
From Vaisala
"These hygrometers are small, lightweight, and easy to use. The large LCD displays moisture readings in dew point (°C or °F), ppmv, ppmw, lb/MMSCF, and a variety of other unit options. Data can be viewed in alphanumeric or graphic formats."
Features Include
IMA UK - Moisture and Dewpoint Measurement
"Established in 1991 to be specialists in Moisture Measurement, IMA have rapidly become known as experts in Hygrometry and Watercut systems."
Dew Point Measurements - EE35 - E E Elektronik
"The EE35 Series is based on a functional, user-friendly housing concept and on the proven polymer humidity sensors of the HC Series. A specially developed autocalibration process enables measurements in a measurement range."
Features Include
Development and production of Sensors, Transmitters and Instruments for measurement of relative humidity and air velocity. Humidity calibration systems.
Calibrator of industrial signals C405 - calmet
Universal calibrator and meter of industrial signals class 0,03, thermocouples (TC sensors), Pt, Cu and Ni sensors (RTD sensors), DC voltages and currents, resistance for checking automatic systems.
Features Include -
From calmet
CEP6000 - Multi-Function Calibrator - WIKA
"Useful for Calibration service companies/service industry and Instrument and control workshops."
Features Include -
From - WIKA
HART Communicator Documenting Calibrator - Martel Electronics
"The calibrator has lots of features including source ramp functions, loop power, variable density data logging with a week's worth of calibration results storage, compatibility with many third-party calibration documentation software programs, and a built-in HART configuration/communicator make the HART Communicator an indispensable tool."
Features Include -
From Martel Electronics
Compact Multifunction Calibrator - Altek 
"The TechChek 830 sources and reads like a milliamp or voltage calibrator, simulates and measures T/Cs & RTDs like a temperature calibrator, generates and counts frequency and Counts-Per-Minute like a frequency calibrator and displays pressure like a precision test gauge."
Features Include -
