---
product_id: 154778250
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: "$308.77"
currency: USD
in_stock: true
category: "Testo"
url: https://www.desertcart.us/products/154778250-testo-605i-thermohygrometer-hygrometer-and-indoor-thermometer-for-humidity-measurement
store_origin: US
region: United States of America
---

# Bluetooth-enabled live data feed 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:** $308.77
**Availability:** ✅ In Stock

## Summary

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

## 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?** $308.77 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/154778250-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

- • **Pro-Level Reporting:** Create, save, and share custom reports directly from your mobile device to stay ahead in your field.
- • **Bendable Precision Probe:** Innovative 90° bendable head lets you measure hard-to-reach ducts and crawl spaces with ease.
- • **Seamless Smart Integration:** Effortlessly monitor temperature & humidity via iOS/Android app with real-time data and automatic calculations.
- • **All-in-One Environmental Insight:** Measures relative humidity, temperature, dew point, and wet bulb temperature for comprehensive HVAC diagnostics.
- • **Instant Use, Calibrated Accuracy:** Pre-calibrated and powered by 3 AAA batteries for immediate, reliable readings wherever you go.

## 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, it accurately measures indoor temperature and humidity, calculates dew point and wet bulb temperature, and streams live data to iOS and Android devices. Ready to use out of the box with a calibrated sensor and long-lasting battery, it empowers users to monitor and report environmental conditions with unmatched convenience and precision.

## 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

## 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 | #90,602 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #144 in Indoor Thermometers |
| Brand Name | Testo |
| Color | black/orange |
| Customer Reviews | 4.7 4.7 out of 5 stars (375) |
| 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 |
| Model | 0560 2605 03 |
| Mounting Type | Tabletop |
| Operating Humidity | 10-35%, 35-65%, 65-90%, <10% RH or >90% RH (at 77°F) |
| Part Number | 0560 2605 03 |
| Smart Home Compatibility | Smart Home Compatible |
| Temperature Accuracy | 0.5 Degrees Celsius |
| Temperature Reading Accuracy | plus_minus_0_point_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 - 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.

## 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: 2026-07-12*