---
product_id: 2175292
title: "Extech 445580 Humidity and Temperature Pen with Fast Response Sensor, Min/Max Memory, Dual LCD, Pocket-Sized Hygrometer for HVAC, Labs, Storage Rooms, Indoor Air Monitoring"
brand: "extech"
price: "S$158"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/2175292-extech-445580-humidity-and-temperature-pen-with-fast-response-sensor
store_origin: SG
region: Singapore
---

# 3-phase live detection Non-contact motor rotation sensing Durable double-molded housing Extech 445580 Humidity and Temperature Pen with Fast Response Sensor, Min/Max Memory, Dual LCD, Pocket-Sized Hygrometer for HVAC, Labs, Storage Rooms, Indoor Air Monitoring

**Brand:** extech
**Price:** S$158
**Availability:** ✅ In Stock

## Summary

> ⚡ Master motor phases and rotations with precision—carry confidence everywhere!

## Quick Answers

- **What is this?** Extech 445580 Humidity and Temperature Pen with Fast Response Sensor, Min/Max Memory, Dual LCD, Pocket-Sized Hygrometer for HVAC, Labs, Storage Rooms, Indoor Air Monitoring by extech
- **How much does it cost?** S$158 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/2175292-extech-445580-humidity-and-temperature-pen-with-fast-response-sensor)

## Best For

- extech enthusiasts

## Why This Product

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

## Key Features

- • **Robust Durability:** Double molded housing ensures long-lasting performance in demanding environments.
- • **Safe Non-Contact Testing:** Determine motor rotation without physical contact—boost safety and efficiency on the job.
- • **Compact & Portable Design:** Pen-sized with pocket clip for seamless carry and quick access during site inspections.
- • **Ready to Use Out of the Box:** Includes lithium metal battery and backed by a 1-year warranty for reliable uptime.
- • **Instant Phase & Rotation Insight:** LED indicators reveal phase orientation and motor rotation direction at a glance.

## Overview

The Extech 445580 is a compact, pen-sized meter designed for professional electricians and engineers to quickly test phase sequence and motor rotation direction without contact. Featuring LED indicators for clear phase orientation, a durable double-molded housing, and powered by an included lithium metal battery, it offers reliable, portable performance backed by a 1-year warranty.

## Description

445580 Humidity and Temperature Pen Sized Meter with Pocket Clip

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | green |
| Brand | Extech |
| Product Dimensions | 1.2"W x 1"H |
| Item Weight | 0.07 Kilograms |
| Battery Description | Alkaline |
| Mounting Type | Tabletop |
| Operating Humidity | 5% - 95% relative humidity |
| Upper Temperature Rating | 122 Degrees Fahrenheit |
| Voltage | 3 Volts |
| Temperature Accuracy | 1 degree Celsius |
| Manufacturer | Extech |
| UPC | 793950455807 013227082940 799891859544 885117593696 705554395052 013161017268 |
| Global Trade Identification Number | 00793950455807 |
| Part Number | 445580 |
| Item Weight | 2.46 ounces |
| Item model number | 445580 |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Style | Humidity and Temperature, Pen Sized |
| Pattern | Thermometer |
| Power Source | Battery Powered |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Metal |
| Description Pile | Alkaline |
| Warranty Description | 1 year |

## Product Details

- **Color:** green
- **Brand:** Extech
- **Product Dimensions:** 1.2"W x 1"H
- **Item Weight:** 0.07 Kilograms
- **Battery Description:** Alkaline

## Images

![Extech 445580 Humidity and Temperature Pen with Fast Response Sensor, Min/Max Memory, Dual LCD, Pocket-Sized Hygrometer for HVAC, Labs, Storage Rooms, Indoor Air Monitoring - Image 1](https://m.media-amazon.com/images/I/71IN4BwC-6L.jpg)

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.sg/products/2175292-extech-445580-humidity-and-temperature-pen-with-fast-response-sensor](https://www.desertcart.sg/products/2175292-extech-445580-humidity-and-temperature-pen-with-fast-response-sensor)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-24*