Essential and Operational Technologies

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Select all	Attribute	Value
	Brand	Extech
	Maximum Measurement	199°F
	Best Accuracy	±1.8 °F
	Display Type	Backlit LCD
	Power Source	Battery
	Model Number p	RH490-NIST

	Select all
	Brand Extech
	Maximum Measurement 199°F
	Best Accuracy ±1.8 °F
	Display Type Backlit LCD
	Power Source Battery
	Model Number p RH490-NIST

Extech RH490-NIST Psychrometer, 199°F Max, ±1.8 °F Accuracy, Backlit LCD Display, Battery-Powered