What is the humidity range it can measure?

Hello, Thanks for your question, The humidity range is 10 to 90%RH, the Max resolution is: 0.1%RH and the basic acuracy±3%RH. if you have any questions, feel free to contact our technical support line at 866-477-3687 option 3

Can i use this for test the % of humidity in food, like mixed corn?

No. You can't use this meter for measure humidity in food. This meter is for ambient temperature, ambient humidity, dew point and other variables. Also, you can use an optional wire probe for measure temperature in food, but not humidity.

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Extech RH300 Digital Psychrometer, Humidity, Temp, Dew Point, Wet Bulb | RH 10-90%, air temp -4 to 122F, dew point, wet bulb, T1-T2 differential (with TP890), twist sensor cap

Extech RH300 Digital Psychrometer, Humidity, Temp, Dew Point, Wet Bulb | RH 10-90%, air temp -4 to 122F, dew point, wet bulb, T1-T2 differential (with TP890), twist sensor cap

Product ID: 13748161

Details

Battery Description
2 x AAA (1.5V)
Brand
Extech
Color
Orange
Item Weight
0.02 kg
Mounting Type
Tabletop

💧Humidity 10-90% RH

🔄Twist sensor cap for protection

🌡️Temp range -4 to 122°F

HK$2200

Duties & taxes included

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Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌟 Stay ahead of the climate curve with Extech RH300 – your pocket-sized environmental oracle!

SMART SENSOR SHIELD - Unique twist-to-close sensor cap protects your device on the go—no more damaged sensors.
USER CENTRIC DESIGN - Compact, lightweight, with Data Hold, Auto Power Off, and MAX/MIN/Average readings for effortless use.
TRIPLE READOUT POWER - Simultaneously view humidity, air temp, and dew point or wet bulb for instant insights.
PRECISION FIELD READY - Accurate measurements with ±1°F temp accuracy and wide operating humidity range (10-90%).
ADVANCED DIFFERENTIAL CALCULATIONS - Calculate T1-T2 differential with optional TP890 probe for professional-grade diagnostics.

The Extech RH300 Digital Psychrometer is a compact, field-ready device that simultaneously measures relative humidity (10-90%), air temperature (-4 to 122°F), and dew point or wet bulb temperature. Featuring a unique twist sensor cap for protection, it supports advanced T1-T2 differential calculations with an optional probe, making it ideal for professionals needing precise environmental data on the go.

Specifications

ASIN	B000BF5400
Battery Description	2 x AAA (1.5V)
Best Sellers Rank	#648,496 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #64 in Humidifier Humidity Meters
Brand Name	Extech
Color	Orange
Customer Reviews	4.4 4.4 out of 5 stars (61)
Global Trade Identification Number	00793950443002
Included Components	Digital Psychrometer
Item Weight	0.02 kg
Manufacturer	Extech
Model	RH300
Mounting Type	Tabletop
Number of Items	1
Operating Humidity	10% to 90%
Part Number	EXTRH300
Temperature Accuracy	1
UPC	793950443002 796841974500
Unit Count	1 Count
Upper Temperature Range	120 °F
Voltage	1.5 volts_of_direct_current
Warranty Description	1 Year

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HK$2200

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

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