---
product_id: 386510299
title: "Testo 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: "$260.12"
currency: USD
in_stock: true
reviews_count: 5
category: "Testo"
url: https://www.desertcart.us/products/386510299-testo-605i-thermohygrometer-hygrometer-and-indoor-thermometer-for-humidity-measurement
store_origin: US
region: United States of America
---

# Bluetooth smart connectivity 90° bendable probe for versatile access 150h battery life for extended use Testo 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:** $260.12
**Availability:** ✅ In Stock

## Summary

> 📊 Elevate your environment monitoring game with smart precision and flexible reach!

## Quick Answers

- **What is this?** Testo 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?** $260.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/386510299-testo-605i-thermohygrometer-hygrometer-and-indoor-thermometer-for-humidity-measurement)

## 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

- • **Plug & Play Ready:** Comes calibrated with batteries included—start measuring right out of the box with zero setup hassle.
- • **Powerful Mobile App Support:** Leverage the free testo Smart Probes app to log, analyze, and share custom reports, boosting your workflow efficiency.
- • **Smart Bluetooth Integration:** Seamlessly sync live temperature & humidity data to your iOS or Android device for instant insights and reporting.
- • **Flexible 90° Bendable Probe:** Access hard-to-reach ducts and crawl spaces with a compact, bendable sensor head designed for precision in tight spots.
- • **Automatic Dew Point & Wet Bulb Calculations:** Get instant, accurate environmental metrics without manual math—perfect for HVAC pros and environmental monitoring.

## Overview

The Testo 605i Thermohygrometer is a compact, Bluetooth-enabled device designed for professional-grade temperature and humidity measurement in rooms, ducts, and environmental chambers. Featuring a 90° bendable probe, it offers versatile access to tight spaces while delivering accurate readings with ±0.5°C precision. Its smart app integration allows real-time data monitoring, automatic dew point and wet bulb calculations, and seamless report generation, making it an essential tool for HVAC technicians and environmental professionals.

## 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: Bought (3) nice for checking return, supply and ambient temps, works great with MeasureQuick app.
Review: Se conecta fácil ala aplicación y la información es precisa, útil para el trabajo.

## 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 |
| Best Sellers Rank | #114,933 in Kitchen ( See Top 100 in Kitchen ) #7 in Humidity Meters |
| Capacity | 1500 Milliliters |
| Customer Reviews | 4.8 4.8 out of 5 stars (347) |
| Date First Available | 16 July 2019 |
| Item display weight | 300 Grams |
| Item model number | 0560 2605 03 |
| Manufacturer | Testo |
| Part number | 0560 2605 03 |
| Power source type | Battery Powered |
| Product Dimensions | 15 x 8 x 5 cm; 95 g |

## Product Details

- **Battery description:** Alkaline
- **Brand:** Testo
- **Colour:** black/orange
- **Item weight:** 95 Grams
- **Product dimensions:** 25W x 254H millimeters

## Images

![Testo 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/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

### ⭐⭐⭐⭐⭐ Review
*by M***E on 22 April 2025*

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

### ⭐⭐⭐⭐⭐ Review
*by E***S on 16 July 2023*

Se conecta fácil ala aplicación y la información es precisa, útil para el trabajo.

### ⭐⭐⭐⭐⭐ Review
*by M***L on 13 December 2025*

Excelente Producto!.

## 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 United States of America*
*Store origin: US*
*Last updated: 2026-07-11*