Can the relative humidity be calibrated by the user?

Neither relative humidity nor temperature can be calibrated by the user. User's manual does not mention this possibility.

Can this item be sent in for re-calibration periodically, and updated certificate?

All the items have been calibrated before sending out, and if you need to calibate again, then you can send it to us for re-calibration, but it will cost a lot of time and shipping fee

?Viene con el certificado de calibración?

Thank you for your question. If you need it you can contact our customer service and we will send you a calibration operation manual, which is recommended to be used under professional personnel and operating equipment.

Has anyone who bought this unit tested it for accuracy?

That I do not know. what I can say is that the temperature it shows is close to what the weather people say the temp.s are. I bought it because the local weather people have decided to no longer give the dew points in the forecast. I do know that the higher the dew point reading the device shows the more humid it feels. I also had issue with deciding to just give a date on the map as to when the "Monsoon season" starts and stops. The method of a dew point higher than 55degrees 3 days in a row for the start and below 55 degrees 3 days in a row for the end makes more sense.

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Protmex PT6508 Temperature Humidity Meter - Wet Bulb for Indoor/Outdoor

Product ID: 23678036

Details

Battery Description
Alkaline
Brand
Protmex
Color
Orange
Item Weight
0.31 kg
Product Dimensions
2.36"W x 2.9"H

💧Humidity 0%-100% RH

📊Min/Max & Data Hold

🌡️Temp range -20°C to 60°C

83299CFA

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌟 Master your environment with Protmex PT6508 — because precision is power!

SMART DATA CONTROL - Min, Max, and Data Hold functions let you capture and analyze key environmental stats
ENERGY SAVVY DESIGN - Auto shutdown after 30 minutes preserves battery life for long-term use
ALL IN ONE CLIMATE PRO - Combines temperature, humidity, wet bulb & dew point in one sleek device
PRECISION YOU CAN TRUST - High accuracy sensor with ±0.5°C temperature precision for reliable readings
ANYTIME ANYWHERE VISIBILITY - Bright LCD backlight ensures clear data even in low-light environments

The Protmex PT6508 is a professional-grade digital psychrometer combining temperature, humidity, wet bulb, and dew point measurements. With a wide temperature range (-20°C to 60°C), full humidity spectrum (0%-100% RH), and advanced features like Min/Max tracking, data hold, and a bright backlit LCD, it’s engineered for HVAC, agriculture, meteorology, and more. Compact and energy-efficient, it delivers precise environmental insights wherever you need them.

Specifications

ASIN	B017NF1POE
Battery Description	Alkaline
Best Sellers Rank	#14,879 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 in Humidifier Humidity Meters #11 in Humidifier Accessories
Brand Name	Protmex
Color	Orange
Customer Reviews	4.6 4.6 out of 5 stars (899)
Global Trade Identification Number	06051651879433
Included Components	4 x AAA Batteries, 1 x Packing Bag, 1 x Use Manual
Item Dimensions W x H	2.36"W x 2.9"H
Item Length	7.2 inches
Item Weight	0.31 kg
Manufacturer	PROTMEX
Model	CECOMINOD046940
Mounting Type	Tabletop
Operating Humidity	0%-100%
Part Number	PPM-TI002-3
Temperature Accuracy	0.5 degrees_celsius
Temperature Reading Accuracy	plus_minus_1_point_5_degrees_celsius
Unit Count	1 Count
Upper Temperature Range	140 °F
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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83299CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered 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 Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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