---
product_id: 154778250
title: "605i Thermohygrometer - Hygrometer & Indoor Thermometer for Humidity Measurement and Indoor Temperature - 90° Bendable In-Duct Temperature and Humidity Monitor with Bluetooth - iOS & Android"
brand: "testo"
price: "1026.34 DT"
currency: TND
in_stock: true
reviews_count: 10
category: "Testo"
url: https://www.desertcart.tn/products/154778250-605i-thermohygrometer-hygrometer-and-indoor-thermometer-for-humidity-measurement-indoor
store_origin: TN
region: Tunisia
---

# Bluetooth smart connectivity 90° bendable probe for versatile access 150h battery life for extended use 605i Thermohygrometer - Hygrometer & Indoor Thermometer for Humidity Measurement and Indoor Temperature - 90° Bendable In-Duct Temperature and Humidity Monitor with Bluetooth - iOS & Android

**Brand:** testo
**Price:** 1026.34 DT
**Availability:** ✅ In Stock

## Summary

> 📊 Elevate your HVAC game with smart precision and bendable brilliance!

## Quick Answers

- **What is this?** 605i Thermohygrometer - Hygrometer & Indoor Thermometer for Humidity Measurement and Indoor Temperature - 90° Bendable In-Duct Temperature and Humidity Monitor with Bluetooth - iOS & Android by testo
- **How much does it cost?** 1026.34 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/154778250-605i-thermohygrometer-hygrometer-and-indoor-thermometer-for-humidity-measurement-indoor)

## 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

- • **Ready Out-of-the-Box:** Comes calibrated with batteries included—start measuring humidity and temperature immediately, no setup delays.
- • **Smart Bluetooth Integration:** Seamlessly sync live data to your iOS or Android device for real-time insights and effortless reporting.
- • **Compact & Lightweight Design:** Weighing just 3.35 oz, it’s the perfect portable tool for on-the-go professionals who demand accuracy and convenience.
- • **Precision 90° Bendable Probe:** Access hard-to-reach ducts and tight spaces with a flexible probe designed for professional HVAC diagnostics.
- • **Automatic Dew Point & Wet Bulb Calculations:** Get instant, accurate environmental metrics without manual math—boosting your efficiency on every job.

## Overview

The Testo 605i Thermohygrometer is a compact, Bluetooth-enabled device designed for precise indoor temperature and humidity measurement. Featuring a 90° bendable probe, it excels in tight spaces like ducts and crawl spaces. Compatible with iOS and Android via the free Testo Smart Probes app, it offers live data streaming, automatic dew point and wet bulb calculations, and easy report generation. With a 150-hour battery life and factory calibration, it’s a ready-to-use, professional-grade tool for HVAC/R technicians and environmental monitoring.

## 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 useful - Bought (3) nice for checking return, supply and ambient temps, works great with MeasureQuick app.
Review: Testo 605i - Excelente Producto!.

## 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 | #45,505 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #154 in Indoor Thermometers |
| Brand | Testo |
| Color | black/orange |
| Date First Available | October 19, 2018 |
| Global Trade Identification Number | 04029547022531 |
| Item Weight | 3.35 ounces |
| Item model number | 0560 2605 03 |
| Manufacturer | Testo |
| Mounting Type | Tabletop |
| Operating Humidity | 10-35%, 35-65%, 65-90%, <10% RH or >90% RH (at 77°F) |
| Product Dimensions | 1"W x 10"H |
| Temperature Accuracy | 0.5 Degrees Celsius |
| Upper Temperature Rating | 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

![605i Thermohygrometer - Hygrometer & Indoor Thermometer for Humidity Measurement and Indoor Temperature - 90° Bendable In-Duct Temperature and Humidity Monitor with Bluetooth - iOS & Android - Image 1](https://m.media-amazon.com/images/I/71kmCC6q9uL.jpg)

## 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 useful
*by M***E on April 22, 2025*

Bought (3) nice for checking return, supply and ambient temps, works great with MeasureQuick app.

### ⭐⭐⭐⭐⭐ Testo 605i
*by M***L on December 13, 2025*

Excelente Producto!.

### ⭐⭐⭐⭐⭐ 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.

## 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 Tunisia*
*Store origin: TN*
*Last updated: 2026-01-27*