Extech RH490 Precision Hygro-Thermometer

Specifically designed for HVAC professionals and water damage restoration contractors, the Extech RH490 is a precise hygrothermometer that can be used to evaluate temperature and humidity with a high degree of accuracy.

This tester is capable of measuring humidity from 0 to 100% RH, dewpoint from -22 to 199°F (-30 to 100°C), wet bulb from 32 to 176 °F (0 to 80°C) and absolute humidity from 0 to 1120GPP (0 to 160g/kg).

The RH490 is actually designed to showcase more than one measurement at a time and can show humidity or GPP plus temperature, humidity or GPP plus dew point or humidity or GPP plus wet bulb on the devices' LCD screen. Measurement are carried out using the long sensor attached to the top of the device.

Additional features of this meter include data hold and MIN/MAX measurements.

Extech RH490 Precision Hygro-Thermometer Key Features

• Less than 30 second RH response time
• Water vapour in GPP (g/kg)
• Dual backlit display
• Shows simultaneous display of humidity or GPP plus temperature
• Simultaneous display of humidity or GPP plus dew point
• Simultaneous display of humidity or GPP plus wet bulb
• Slim design with rubberised signs for easy operation
• Data hold
• MIN/MAX
• Auto power off (can be disabled)
• Low battery indicator

Full List of Products Included

• Extech RH490 Precision Hygro-Thermometer
• Carrying Case
• 9V Battery