Is two degrees hotter normal for this thermometer. The humidity is good but checkiing normal for the product.

Not normal. Accurate to within a half-degree when calibrated.

How do we select either of the 2 Certificate of Traceablitity options? Or is this already in the box?

The product does not come with a certificate & it's a hassle to obtain. The Extech website notes the following:Is my meter calibrated out of the box? How often should it be calibrated? Does it come with a calibration certificate? How & where can I get my meter calibrated?All Extech products are factory calibrated prior to shipment. This calibration is valid for one year. An annual factory calibration is recommended. Extech does not include calibration certificates with our products. NIST calibrations with data can be purchased for an additional charge for most products. To send your meter to be NIST calibrated please contact our return department for a return authorization number and other return information.

Can it display the temperature in Celsius unit?

Yes! Good question, and I did not know, so I dug out my instructions. I am now looking at those and my unit and there is a switch in the battery compartment below the battery for degrees F and degrees C. Using this, I have 78.6 F showing as 25.9 C. BTW, I'm actually considering getting another one for my car and work. It will need some protection, like a plastic sandwich box with some paper towel padding, but that will do it for me. Hope you enjoy yours as much as I like mine.

May i know does this item come together with a calibration certificate?

The calibration certificate is not included; it can be ordered together with 17030-28 calibration.

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445815 Hygro-Thermometer Humidity Alert, Dew Point, Calibration

Product ID: 49155999

Details

Battery description
Alkaline
Brand
Extech
Colour
White
Item weight
0.19 Kilograms
Product dimensions
20W x 109H

📈Humidity range 10-99% RH

🔔Audible & visual humidity alarms

🌡️Temp range 14-140°F

€ 143.12

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Description

🌟 Master your environment with pinpoint precision!

REMOTE PROBE ACCESS - Measure hidden or hard-to-reach spots effortlessly with an 18-inch extendable probe.
TRIPLE DATA DISPLAY - Simultaneously view humidity, temperature, and dew point on a large, clear LCD screen.
MAX MIN MEMORY WITH RESET - Track environmental extremes and reset easily for continuous monitoring.
PRECISION DEW POINT INSIGHT - Stay ahead of condensation risks with real-time dew point calculations.
CUSTOMIZABLE HUMIDITY ALERTS - Never miss critical thresholds with programmable audible and visual alarms.

The Extech 445815 Hygro-Thermometer is a professional-grade environmental monitor designed for labs, storage, and manufacturing. It features a wide humidity range (10-99%), temperature measurement (14-140°F), and unique dew point calculation to predict condensation. With programmable alarms, a remote 18-inch probe, and a large triple-display LCD, it ensures precise, accessible monitoring in challenging locations.

Specifications

ASIN	B000GFCN1I
Battery Description	Alkaline
Best Sellers Rank	78,404 in Garden ( See Top 100 in Garden ) 2,099 in Scanners & Testers 5,359 in Lawn & Garden Watering Equipment
Brand	Extech
Colour	White
Country Of Origin	China
Customer Reviews	4.2 4.2 out of 5 stars (254)
Global Trade Identification Number	00793950458150, 04016138375534
Included Components	Built-in Stand, Wall Mount Bracket, 1 AAA battery
Item Dimensions W x H	20W x 109H millimetres
Item Highlight	Programmable alarms, dew point, triple display, MIN/MAX, field calibration pot, remote probe
Item Length	4.3 Inches
Item Weight	0.19 Kilograms
Lower Temperature Rating	10 Degrees Celsius
Manufacturer	Extech
Manufacturer Part Number	445815
Model Number	445815
Mounting Type	Wall Mount
Number of Items	1
Number of Packs	1
Operating Humidity	10% to 99%
Temperature Accuracy	+1.8 °C
Temperature Reading Accuracy	plus_minus_1_point_8_degrees_celsius
UPC	885866191235 793950458150
Unit Count	1.0 count
Upper Temperature Rating	140 Degrees Fahrenheit
Voltage	1.5 Volts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 143.12

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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