---
product_id: 416919856
title: "Testo 316-3 I Refrigerant Leak Detector I High Sensitivity Detector for Refrigerant substances"
brand: "testo"
price: "₨277621"
currency: LKR
in_stock: true
reviews_count: 5
category: "Testo"
url: https://www.desertcart.lk/products/416919856-testo-316-3-i-refrigerant-leak-detector-i-high-sensitivity
store_origin: LK
region: Sri Lanka
---

# 0.15 oz/yr ultra-sensitive detection 16h battery life for uninterrupted use Detects all major refrigerants (CFCs, HFCs, HCFCs) Testo 316-3 I Refrigerant Leak Detector I High Sensitivity Detector for Refrigerant substances

**Brand:** testo
**Price:** ₨277621
**Availability:** ✅ In Stock

## Summary

> 🔍 Detect leaks before they detect you – stay ahead with testo 316-3!

## Quick Answers

- **What is this?** Testo 316-3 I Refrigerant Leak Detector I High Sensitivity Detector for Refrigerant substances by testo
- **How much does it cost?** ₨277621 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/416919856-testo-316-3-i-refrigerant-leak-detector-i-high-sensitivity)

## 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

- • **Built to Last:** Rugged housing and long sensor life ensure durability on every job site
- • **Rapid Response:** Automatic zeroing enables fast, contamination-free measurements every time
- • **Pinpoint Precision:** Detects leaks as small as 0.15 oz/year for unmatched accuracy
- • **User-Centric Design:** Intuitive one-button operation with LED and audible alarms for effortless use
- • **All-in-One Compatibility:** Reliable detection across all common refrigerants including R22, R134a, R410A and more

## Overview

The Testo 316-3 is a professional-grade refrigerant leak detector featuring a patented heated diode sensor with sensitivity down to 0.15 oz/year. It supports all major refrigerants (CFCs, HFCs, HCFCs) and offers fast, reliable measurements with automatic zeroing, a user-friendly interface, and up to 16 hours of battery life. Rugged and precise, it’s engineered for HVAC pros who demand accuracy and efficiency in leak detection.

## Description

testo 316-3 - Refrigerant leak detectorThe testo 316-3 refrigerant leak detector is an efficient, intuitive tool that detects refrigerant leaks. The patented heated diode sensor provides sensitivity down to 0.15 ounces/year. Automatic zeroing, the tool is not only very fast but can also be used in previously contaminated areas.Technical data:Sensitivity: 0.15 oz/yr; (4g/a)Operating humidity: 20 to 80 %rHDetectable refrigerants: R-22, R134a, R-404A, R-410A, R-507, R438A and all CFCs, HFCs, and HCFCsConformance: SAE J1627, EN 14624, EG 2004/108/EGStorage temperature: -4° to 122 °FOperating temperature: -0.4° to 122.0 °F / -18 to +50 °CLife-time sensor: Approx. 80 to 100 h (corresponds to approx. 1 year)Standards: EN 14624:2012; SAE J1627EU-/EG-guidelines: 2004/108/EGBattery type: 2 x DBattery life: 16h permanent operationWeight: 18 oz. (incl. batteries) / 500 g (incl. batteries)Dimensions: 10.6 x 2.4 x 2.4 in. / 270 x 60 x 61 mmDelivery Scope:✓ 1 x testo 316-3 refrigerant leak detector with sensor head✓ 2x D batteries✓ Certificate of calibration✓ Transport case✓ Filter

Review: The Testo 316-3 refrigerant leak detector is one of the most sensitive R-22 leak detectors available. It doesn’t have high sensitivity for R-410a. I personally keep at least Two leak detector on my truck. I keep a R-22 (Testo 316-3) and separate R-410a leak detectors. I use the Testo 316-4 and Fieldpiece DR85 for finding R-410a leaks. You won’t be disappointed in its ability to locate very small r-22 leaks! Highly recommend.
Review: When I used this for the first time for leak detection I found no leaks in the brazed joints. However, it did find a very small leak in one of the valve cones with only a trace amount of R410a and 150 psi N2.

## Features

- Fast and reliable: Thanks to automatic zeroing, the testo 316-3 measuring instrument for HVAC systems delivers rapid measurements and can be used in previously contaminated areas
- Versatile: The durable, battery-powered detector provides reliable measurements for all CFCs, HFCs and HCFCs as well as R22, R134a, R404A, R410A, R507 and R438A refrigerants
- Excellent sensitivity: The patented heated diode sensor with outstanding high/low sensitivity adjustment down to 0.15 oz./year makes locating refrigerant leaks amazingly efficient
- Sophisticated: Like all testo products, the testo 316-3 is a premium, well-thought-out product that combines a rugged, functional housing with state-of-the-art design features
- Easy operation: The measurement device is equipped with an LED indicator, an audible alarm and convenient one-button operation and is thus practical, intuitive and user-friendly

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00DMFD0HK |
| Best Sellers Rank | #95,910 in Automotive ( See Top 100 in Automotive ) #52 in Automotive AC Leak Detection Tools |
| Item model number | 0563 3163 |
| Manufacturer | Testo |
| Product Dimensions | 27 x 6.5 x 6.5 cm; 400 g |

## Images

![Testo 316-3 I Refrigerant Leak Detector I High Sensitivity Detector for Refrigerant substances - Image 1](https://m.media-amazon.com/images/I/3129p39-CuL.jpg)
![Testo 316-3 I Refrigerant Leak Detector I High Sensitivity Detector for Refrigerant substances - Image 2](https://m.media-amazon.com/images/I/51kOGsjzalL.jpg)

## Questions & Answers

**Q: What and how many refrigerants does this detect?**
A: It can detect  R22; R134a; R404A; R410A; R507; R438A; all CFCs, HFCs, and HCFCs.

**Q: What is the sensor life expectancy?**
A: It states 100 hours. I've had and used it for roughly that much. I've allowed other technicians to also use it and some of them have purchased their own shortly after. I do plan on changing the senser soon. I've been able to get them for roughly 65$.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by N***G on 7 April 2022*

The Testo 316-3 refrigerant leak detector is one of the most sensitive R-22 leak detectors available. It doesn’t have high sensitivity for R-410a. I personally keep at least Two leak detector on my truck. I keep a R-22 (Testo 316-3) and separate R-410a leak detectors. I use the Testo 316-4 and Fieldpiece DR85 for finding R-410a leaks. You won’t be disappointed in its ability to locate very small r-22 leaks! Highly recommend.

### ⭐⭐⭐⭐⭐ Review
*by L***O on 29 June 2021*

When I used this for the first time for leak detection I found no leaks in the brazed joints. However, it did find a very small leak in one of the valve cones with only a trace amount of R410a and 150 psi N2.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 4 May 2024*

Nothing to dislike

## Frequently Bought Together

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-06*