---
product_id: 154778250
title: "Testo 605i Thermohygrometer"
brand: "testo"
price: "MX$8885"
currency: MXN
in_stock: true
reviews_count: 10
category: "Testo"
url: https://www.desertcart.mx/products/154778250-testo-605i-thermohygrometer
store_origin: MX
region: Mexico
---

# 150h battery life with 3 AAA batteries Bluetooth-enabled live data feed 90° bendable probe for versatile in-duct use Testo 605i Thermohygrometer

**Brand:** testo
**Price:** MX$8885
**Availability:** ✅ In Stock

## Summary

> 📊 Elevate your HVAC game with smart precision and effortless data at your fingertips!

## Quick Answers

- **What is this?** Testo 605i Thermohygrometer by testo
- **How much does it cost?** MX$8885 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/154778250-testo-605i-thermohygrometer)

## Best For

- testo enthusiasts

## Why This Product

- Trusted testo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pro-Level Reporting:** Use the free testo Smart Probes App to generate, save, and share custom reports that impress clients and teams.
- • **Ready Out of the Box:** Comes calibrated with batteries included—start measuring immediately without any setup hassle.
- • **Ultimate Flexibility:** Compact, 90° bendable probe designed for hard-to-reach ducts, crawl spaces, and environmental chambers.
- • **Seamless Smart Integration:** Connect effortlessly via Bluetooth to iOS & Android for real-time monitoring and instant data logging.
- • **Precision in Every Measurement:** High accuracy temperature and humidity readings with automatic dew point and wet bulb calculations.

## Overview

The Testo 605i Thermohygrometer is a compact, Bluetooth-enabled device designed for professional HVAC/R technicians and home users alike. Featuring a 90° bendable probe for versatile in-duct and room measurements, it delivers highly accurate temperature and humidity data, including automatic dew point and wet bulb calculations. Controlled via a free iOS and Android app, it offers live data streaming, easy report generation, and remote monitoring. Supplied calibrated with 3 AAA batteries, it ensures immediate, reliable use for efficient environmental diagnostics.

## Description

Testo 605i smart thermohygrometer - 90° bendable temperature and humidity monitor for in-duct measurementsThe testo 605i humidity gauge and indoor thermometer for home is an efficient, easy-to-use tool for temperature and humidity measurement in rooms, ducts, crawl spaces, registers and environmental boxes/chambers. The hygrometer and indoor thermometer supports Bluetooth, making it easier than ever to create reports and generate automatic calculations such as calculations of dew point and wet bulb temperature.Technical data 605i:Measuring range: -4° to 140 °F / -20 to +60°CAccuracy: ±1.4 °F (-4° to 32 °F) / ±0.8 °C (-20 to 0 °C); ±0.9 °F (32° to 140 °F) / ±0.5 °C (0 to +60 °C)Storage temperature: -4° to 140 °F / -20 to +60 °CResolution: 0.1 %rHBattery life: 150hBattery type: 3 x AAAWeight: 3.05 oz. / 86.4 gDimensions: 10 x 1 x 1 in. / 243 x 30 x 24 mmSystem requirements: requires iOS 8.3 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0Scope of Delivery:1 x testo 605i Bluetooth thermo-hygrometer with app, 3 x AAA batteries, certificate of calibration

Review: Very good instrument - Best in class Use this thermohygrometer in many commissioning tests. Aside of a high accuracy, the online data capture and basic reports that can be exported in ccv format, makes this instrument a good option for field testing.
Review: Accuracy seems to be great - I wanted something I could use as an easy humidity standard. This unit had the best specs for the price. I bought it despite the drawback that it had no visible meter and needed a smartphone to display the readings. Turns out the smartphone requirement was its best feature. It will display a real time graph of the temperature and humidity readings. You can use the graph to see when it stabilizes, plus it will show you the fluctuations in the humidity and temperature. Since I'm using it for a humidity standard, couldn't calibrate that. I did calibrate the temperature readings against a lab thermometer. They exceeded the claimed accuracy. The difference between the readings of this instrument and the lab thermometer were essentially nil.

## Features

- Efficient; The testo 605i thermohygrometer is ideal for measurements in rooms, ducts, crawl spaces, registers and environmental boxes and chambers due to the compact probe head bendable to 90°
- Smart; Enabling live data feed integration and automatic calculations which are conveniently displayed on your terminal device, the 605i temperature and humidity monitor is ideal for all HVAC/R technicians
- Versatile; The testo 605i hygrometer and indoor thermometer measures relative air humidity and temperature in rooms and ducts and calculates dew point and wet bulb temperature automatically
- Easy to use; The 605i digital humidity meter and indoor thermometer for home allows accurate remote monitoring and is operated via mobile device. Supplied calibrated and with 3 AAA batteries for instant use
- App for Android and iOS; The free testo Smart Probes App is a powerful tool that allows you to read and log measurements of the thermometer and humidity gauge and create custom reports which can be saved and shared

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07V717PFD |
| Battery Description | Alkaline |
| Best Sellers Rank | #52,258 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #104 in Indoor Thermometers |
| Brand Name | Testo |
| Color | black/orange |
| Customer Reviews | 4.7 4.7 out of 5 stars (369) |
| Global Trade Identification Number | 04029547022531 |
| Included Components | industrial-and-scientific-temperature-indicators |
| Item Dimensions W x H | 1"W x 10"H |
| Item Weight | 95 Grams |
| Manufacturer | Testo |
| Mounting Type | Tabletop |
| Operating Humidity | 10-35%, 35-65%, 65-90%, <10% RH or >90% RH (at 77°F) |
| Temperature Accuracy | 0.5 Degrees Celsius |
| Unit Count | 1.0 Count |
| Upper Temperature Range | 140 Degrees Fahrenheit |
| Voltage | 3 Volts |

## Product Details

- **Battery Description:** Alkaline
- **Brand:** Testo
- **Color:** black/orange
- **Item Weight:** 95 Grams
- **Product Dimensions:** 1"W x 10"H

## Images

![Testo 605i Thermohygrometer - Image 1](https://m.media-amazon.com/images/I/516IbfqIX0L.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Is there a sdk/api - can one programmatically read the output (write my own app)?**
A: I don't know, But I use the Measure Quick app.

**Q: Hi there. Is this a second gen?**
A: Mine has the magnet and stick bend also. My Bluetooth range is somewhere around 50 ft or so through normal wood walls. Works great.

**Q: will it stay easily in side an air vent?**
A: It comes with a magnetic collar. I find it stays nicely on all types of tin just put the tip through a 1/4" hole in the duct (easily plugged or covered when your done) and let the collar do it's job. I got two so I can do real time we and dry bulb delta T.
It also has a magnet in the Handel. However, if you want to place the whole unit in the vent it will not read as well as the probe is ment to be perpendicular to the airflow.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very good instrument
*by L***Z on February 15, 2026*

Best in class Use this thermohygrometer in many commissioning tests. Aside of a high accuracy, the online data capture and basic reports that can be exported in ccv format, makes this instrument a good option for field testing.

### ⭐⭐⭐⭐⭐ Accuracy seems to be great
*by R***R on August 9, 2023*

I wanted something I could use as an easy humidity standard. This unit had the best specs for the price. I bought it despite the drawback that it had no visible meter and needed a smartphone to display the readings. Turns out the smartphone requirement was its best feature. It will display a real time graph of the temperature and humidity readings. You can use the graph to see when it stabilizes, plus it will show you the fluctuations in the humidity and temperature. Since I'm using it for a humidity standard, couldn't calibrate that. I did calibrate the temperature readings against a lab thermometer. They exceeded the claimed accuracy. The difference between the readings of this instrument and the lab thermometer were essentially nil.

### ⭐⭐⭐⭐⭐ Best bluetooth thermometer
*by A***. on December 29, 2025*

Awesome to have something to check temps in a RIC

## Frequently Bought Together

- Testo 605i | Thermohygrometer for Indoor Temperature and Humidity Measurement | with Bluetooth Support
- testo 405i – Anemometer handheld for air velocity, in-duct airflow, and temperature – CFM meter with Bluetooth and App operation
- Testo 0560 1510 510I Differential Pressure Manometer Smart and Wireless Probe, 1" Height, 1" Width, 6" Length

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-05-13*