---
product_id: 6669158
title: "Supco ST02 Stainless Steel HVAC/R Pocket Dial Thermometer, 0 to 220F | HVAC, Air Conditioner, Refrigerator, and Freezer Temperature Gauge Probe or AC Vent Tester, 5 in Stem, Analog 1 in Dial"
brand: "supco"
price: "¥1931"
currency: JPY
in_stock: true
reviews_count: 13
category: "Supco"
url: https://www.desertcart.jp/products/6669158-supco-st02-stainless-steel-hvac-r-pocket-dial-thermometer-0
store_origin: JP
region: Japan
---

# Waterproof durability 5-inch stainless steel stem 0-220°F range Supco ST02 Stainless Steel HVAC/R Pocket Dial Thermometer, 0 to 220F | HVAC, Air Conditioner, Refrigerator, and Freezer Temperature Gauge Probe or AC Vent Tester, 5 in Stem, Analog 1 in Dial

**Brand:** supco
**Price:** ¥1931
**Availability:** ✅ In Stock

## Summary

> 🌟 Stay cool, stay precise — the pro’s pocket powerhouse!

## Quick Answers

- **What is this?** Supco ST02 Stainless Steel HVAC/R Pocket Dial Thermometer, 0 to 220F | HVAC, Air Conditioner, Refrigerator, and Freezer Temperature Gauge Probe or AC Vent Tester, 5 in Stem, Analog 1 in Dial by supco
- **How much does it cost?** ¥1931 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/6669158-supco-st02-stainless-steel-hvac-r-pocket-dial-thermometer-0)

## Best For

- supco enthusiasts

## Why This Product

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

## Key Features

- • **Always On Hand:** Compact pocket clip and protective sheath keep your essential tool ready for action
- • **Reach the Hard-to-Get:** 5-inch probe stem accesses tight vents and appliance interiors with ease
- • **Precision in Every Degree:** Accurate 0-220°F analog dial for quick HVAC/R temperature checks
- • **Versatile HVAC/R Essential:** Perfect for air conditioners, refrigerators, freezers, and more—your all-in-one cooling verifier
- • **Built to Brave the Elements:** Waterproof stainless steel design withstands tough job site conditions

## Overview

The Supco ST02 is a rugged, waterproof stainless steel pocket dial thermometer designed for HVAC/R professionals. Featuring a 0-220°F range on a clear 1-inch analog dial and a 5-inch probe, it delivers fast, reliable temperature readings in hard-to-reach spots. Compact and portable with a protective sheath and pocket clip, it’s the trusted tool for air conditioning, refrigeration, and freezer temperature monitoring.

## Description

Monitor temperatures with confidence using this durable stainless steel pocket dial thermometer featuring a 1" dial, 5" stem, and waterproof construction. Designed for HVAC, refrigeration, and appliance service applications, it provides readings from 0°F to 220°F (Fahrenheit only). Ideal as an AC thermometer or AC vent thermometer, this compact tool helps technicians and maintenance professionals verify airflow temperatures during inspections. It can also be used as an AC thermometer for car applications, making it useful for checking vehicle cooling performance. The slim stem functions as an AC vent thermometer for car testing in hard-to-reach spaces and serves as an AC vent temperature tester for routine diagnostics. This versatile air conditioner thermometer includes a protective sheath with a convenient pocket clip for portability. The easy-to-read dial makes it a practical air vent thermometer for field service work. It also functions as a temperature gauge for refrigerator or freezer checks, helping monitor cooling conditions in refrigeration systems. With recalibration adjustment for ongoing accuracy, this refrigeration and air conditioning thermometer is built for dependable daily use.

Review: Worked for testing AC vent temp drop - I can't speak on the accuracy of the gauge, I never compared it to anything. I use it to check temperature difference at the vents and it worked great for that.
Review: Happy with the big dial and its accuracy - I'm really pretty happy with this thermometer. I tested its accuracy with a tool gauge calibrated thermometer and it was spot on, I very happy about that. I like the size of the dial make my old eyes happy too. I like analog gauges as long as they are accurate, digital thermometers may be more accurate over all however my OCD can't stand that flipping back and forth on the last 10th digit. I like its simple design with no wires to fuss with, just pull it out and put it in the vent that's it. I like the durability and that it has no batteries. Just call me old school.

## Features

- QUICK TEMPERATURE CHECKS: This pocket dial thermometer features a 1" round display and Fahrenheit markers for easy reading; The 5" stem helps access hard-to-reach areas
- DESIGNED FOR HVAC/R TASKS: Built as a HVAC thermometer, this stainless steel instrument is ideal for air conditioning, refrigeration, and appliance service applications; The waterproof construction helps withstand demanding work environments
- RELIABLE COOLING VERIFICATION: Use as an AC thermometer to monitor temperatures from 0°F to 220°F, Fahrenheit only; The recalibration adjustment helps maintain dependable readings throughout routine inspections and maintenance
- EASY SYSTEM PERFORMANCE MONITORING: This AC temperature gauge includes a protective sheath with a convenient pocket clip for portability; The compact design keeps the tool accessible during field service and diagnostic work
- DEPENDABLE HVAC/R TOOLS: This AC temperature probe also functions as an analog dial refrigerator thermometer or freezer thermometer for checking cooling conditions across appliance systems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003CL9LMC |
| Additional Features | Waterproof |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #6,192 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Dial Thermometers |
| Brand | Supco |
| Brand Name | Supco |
| Color | Silver |
| Customer Reviews | 4.6 out of 5 stars 2,316 Reviews |
| Display Type | Analog |
| Global Trade Identification Number | 00687152032525 |
| Immersion Depth | 5 inches |
| Included Components | Storage Case |
| Indoor Outdoor Usage | Indoor |
| Item Length | 5 inches |
| Item Weight | 13.61 g |
| Manufacturer | Supco |
| Model | ST02 |
| Model Name | ST02 |
| Outer Material | Stainless Steel |
| Part Number | ST02 |
| Power Source | Battery Powered |
| Product Care Instructions | Do Not Soak, Wipe Clean |
| Response Time | 500 milliseconds |
| Reusability | Reusable |
| Special Feature | Waterproof |
| Specification Met | RoHS |
| Style Name | Classic |
| UPC | 687152032525 |
| Unit Count | 1 Count |
| Upper Temperature Range | 220 °F |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Supco
- **Color:** Silver
- **Display Type:** Analog
- **Included Components:** Storage Case
- **Outer Material:** Stainless Steel
- **Product Care Instructions:** Do Not Soak, Wipe Clean
- **Special Feature:** Waterproof
- **Specification Met:** RoHS
- **Unit Count:** 1 Count

## Images

![Supco ST02 Stainless Steel HVAC/R Pocket Dial Thermometer, 0 to 220F | HVAC, Air Conditioner, Refrigerator, and Freezer Temperature Gauge Probe or AC Vent Tester, 5 in Stem, Analog 1 in Dial - Image 1](https://m.media-amazon.com/images/I/61YVaxzyViL.jpg)

## Available Options

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

## Questions & Answers

**Q: Will this give accurate readings of ambient air temperature?**
A: Yes, but you would have to have the tip off of a table or whatever that might be a different temperature and hold it in your hand by the dial. All of these are able to be calibrated. Put in a cup of ice and set the dial to 33°.

**Q: What country is this made in?**
A: The company Supco is located in Bronx, NY at Supco.com, had it awhile, still works well if that helps.

**Q: can this be calibrated by nut on back for rotating dial?**
A: I believe so. There is a nut on the back, but I haven't had to recalibrate mine yet.

**Q: What is the diameter of the stem? I've got a 3/16" hole that I'd like it to fit into**
A: The one I have measures .150", so it should easily fit into a 3/16" hole which is .1875".

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked for testing AC vent temp drop
*by Z***H on August 21, 2026*

I can't speak on the accuracy of the gauge, I never compared it to anything. I use it to check temperature difference at the vents and it worked great for that.

### ⭐⭐⭐⭐⭐ Happy with the big dial and its accuracy
*by J***L on March 11, 2026*

I'm really pretty happy with this thermometer. I tested its accuracy with a tool gauge calibrated thermometer and it was spot on, I very happy about that. I like the size of the dial make my old eyes happy too. I like analog gauges as long as they are accurate, digital thermometers may be more accurate over all however my OCD can't stand that flipping back and forth on the last 10th digit. I like its simple design with no wires to fuss with, just pull it out and put it in the vent that's it. I like the durability and that it has no batteries. Just call me old school.

### ⭐⭐⭐⭐⭐ Works great
*by D***T on August 19, 2026*

Seeing how cold the house ac is. 👍

## Frequently Bought Together

- Supco ST02 Stainless Steel Pocket Dial Thermometer, 5" Stem, 1" Dial, 0 to 220 Degrees F
- Klein Tools ET05 Digital Pocket Thermometer, HVAC Instant Read Thermometer with Backlit Display, Wide Measurement Range, Fahrenheit and Celsius
- UEi Test Instruments PDT650 Folding Pocket Digital Thermometer,Yellow

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-12*