---
product_id: 4319006
title: "Coghlan's Function Whistle"
brand: "coghlan's"
price: "S$25"
currency: SGD
in_stock: true
reviews_count: 10
category: "Coghlan's"
url: https://www.desertcart.sg/products/4319006-coghlans-function-whistle
store_origin: SG
region: Singapore
---

# 4-in-1 multi-tool compactness Integrated compass for instant direction Built-in thermometer for real-time temp Coghlan's Function Whistle

**Brand:** coghlan's
**Price:** S$25
**Availability:** ✅ In Stock

## Summary

> 🌟 Gear up smart, signal loud, explore boldly!

## Quick Answers

- **What is this?** Coghlan's Function Whistle by coghlan's
- **How much does it cost?** S$25 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/4319006-coghlans-function-whistle)

## Best For

- coghlan's enthusiasts

## Why This Product

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

## Key Features

- • **Clip & Go Convenience:** Spring-loaded clip attaches securely to belts or backpacks for hands-free adventure readiness.
- • **Kid-Friendly Durability:** Lightweight yet sturdy plastic build designed for active outdoor explorers of all ages.
- • **All-in-One Outdoor Essential:** Whistle, compass, thermometer & magnifier in one sleek tool—never get caught unprepared.
- • **Loud & Reliable Signal Whistle:** Powerful whistle cuts through wilderness noise—your safety lifeline in emergencies.
- • **Vibrant High-Visibility Design:** Bright yellow body ensures you can spot it instantly on any gear or trail.

## Overview

Coghlan's Four Function Whistle is a compact, lightweight outdoor tool combining a loud whistle, compass, thermometer, and magnifier in a high-visibility yellow body with a secure spring clip—perfect for camping, hiking, and backcountry adventures. Trusted by thousands, it’s an affordable must-have for safety and exploration.

## Description

desertcart.com : Coghlan's Four Function Whistle for Kids - Emergency, Safety, and Signal Tool for Camping, Hiking, and Outdoor Adventures - Includes Compass, Thermometer, and Signal Mirror : Dog Whistles : Sports & Outdoors

Review: Bought for whistle and thermometer, compass is a plus. - Whistle: Very loud. At first I was blowing on it too lightly and thought it was defective. I gave it a nice blow and wowza, yes it works great! Short bursts work well too. Compass: I'm completely new at using a compass but I do know west has to stay west and so forth. I've tried it many times in my house, I shook it hard many times and checked if the directions still pointed in the appropriate direction. It did for the most part, although it seems to be off by about a dash sometimes, but that could be me I guess. Thermometer: The print is small but my eyes for close-up objects is perfect so I have no problem reading this. For those of you who are far sighted, it may be a bit harder. I have no other thermometer to compare accuracy perfectly, but using my own bodies thermometer, it seems on point. When I turn off the AC in the house the temperature on this baby slowly increases and vice versa. The numbers that shown are by 10 values and the marked dashes in between are by 5 point values, plus an extra red dash for the 32 degree Fahrenheit. Magnifier: Its takes a tiny bit of effort to pull it out, but you can definitely do it no problem. Push it in from one end and use your nails to grasp it and swing it open from the other side. Or use a thin tool like a knife or small tool to push it all the way through. Usefulness: it's a little magnifier, it magnifies things a little. Other: The clasp itself is all plastic, no hinges. To open it wide enough to hang, you give it a push and it bends in somewhat. On it's own the clasp sits slightly ajar (1mm). It can attach to anything thicker than a millimeter and not fall out. I was going to give this four stars because the compass MAY be off by a dash, BUT that may be my lack of skill so in all fairness I won't take off a star. Also even if it IS off by a dash, I am backpacking trails so I don't need anything heavy duty, and if I did I would buy a compass on it's own. This little item is amazing! I bought it primarily for the whistle and thermometer and it meets my expectations. The compass is a plus and I don't care squat for the magnifier either way. The clasp is a simple plastic thing, it's thick, sturdy and will do it's job, I don't see that breaking anytime soon, It can also be replace by a tiny carabiner if you prefer. All in all 100% worth the money.
Review: Cheap but effective - This clips on nicely to my backpack for when I travel. I like knowing the temperature when I am hiking and it is convenient for the direction as well. I haven't had to use the whistle yet.

## Features

- Great outdoor learning tool for kids includes whistle, two-scale thermometer, magnifier, and compass
- High visibility yellow body color; spring-loaded clip for attaching to belt or backpack
- Affordable, essential gear for camping, backpacking, backcountry treks, and more
- Coghlan's Kids Four Function Whistle

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0000AUSD4 |
| Best Sellers Rank | #65,405 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #71 in Camping Signal Whistles |
| Brand Name | Coghlan's |
| Color | Black |
| Country of Origin | Taiwan |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,813) |
| Date First Available | September 9, 2006 |
| Included Components | Four Function Whistle for Kids |
| Item Dimensions LxWxH | 1 x 1 x 1 inches |
| Item Package Dimensions L x W x H | 3 x 0.7 x 0.7 inches |
| Item Weight | 0.1 Pounds |
| Manufacturer | Coghlan's |
| Material | Plastic |
| Model Name | 0240 |
| Model Year | 2013 |
| Number of Items | 1 |
| Package Weight | 0.23 Kilograms |
| Part Number | 0240 |
| Size | One Size |
| Sport Type | Cycling |
| Style | 4-function (Kids) |
| Suggested Users | unisex-adult |

## Product Details

- **Color:** Black
- **Material:** Plastic
- **Brand:** Coghlan's
- **Item dimensions L x W x H:** 3.35 x 1.18 x 0.98 inches
- **Item Weight:** 9.07 g

## Images

![Coghlan's Function Whistle - Image 1](https://m.media-amazon.com/images/I/617HnLOXMLL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bought for whistle and thermometer, compass is a plus.
*by A***N on October 4, 2016*

Whistle: Very loud. At first I was blowing on it too lightly and thought it was defective. I gave it a nice blow and wowza, yes it works great! Short bursts work well too. Compass: I'm completely new at using a compass but I do know west has to stay west and so forth. I've tried it many times in my house, I shook it hard many times and checked if the directions still pointed in the appropriate direction. It did for the most part, although it seems to be off by about a dash sometimes, but that could be me I guess. Thermometer: The print is small but my eyes for close-up objects is perfect so I have no problem reading this. For those of you who are far sighted, it may be a bit harder. I have no other thermometer to compare accuracy perfectly, but using my own bodies thermometer, it seems on point. When I turn off the AC in the house the temperature on this baby slowly increases and vice versa. The numbers that shown are by 10 values and the marked dashes in between are by 5 point values, plus an extra red dash for the 32 degree Fahrenheit. Magnifier: Its takes a tiny bit of effort to pull it out, but you can definitely do it no problem. Push it in from one end and use your nails to grasp it and swing it open from the other side. Or use a thin tool like a knife or small tool to push it all the way through. Usefulness: it's a little magnifier, it magnifies things a little. Other: The clasp itself is all plastic, no hinges. To open it wide enough to hang, you give it a push and it bends in somewhat. On it's own the clasp sits slightly ajar (1mm). It can attach to anything thicker than a millimeter and not fall out. I was going to give this four stars because the compass MAY be off by a dash, BUT that may be my lack of skill so in all fairness I won't take off a star. Also even if it IS off by a dash, I am backpacking trails so I don't need anything heavy duty, and if I did I would buy a compass on it's own. This little item is amazing! I bought it primarily for the whistle and thermometer and it meets my expectations. The compass is a plus and I don't care squat for the magnifier either way. The clasp is a simple plastic thing, it's thick, sturdy and will do it's job, I don't see that breaking anytime soon, It can also be replace by a tiny carabiner if you prefer. All in all 100% worth the money.

### ⭐⭐⭐⭐⭐ Cheap but effective
*by A***A on October 28, 2025*

This clips on nicely to my backpack for when I travel. I like knowing the temperature when I am hiking and it is convenient for the direction as well. I haven't had to use the whistle yet.

### ⭐⭐⭐⭐ The flip out magnifying glass and signal mirror are nice ideas, but both are very small
*by N***E on August 16, 2014*

Some of the functions on this whistle are more novelties than essentials. The thermometer is interesting to have, but I don;t know what use it really serves if you're already outside, and if the whistle is carried near your body, the temperature reading is probably not accurately reading air temp. anyway. The flip out magnifying glass and signal mirror are nice ideas, but both are very small. I don't know if the magnifying glass would focus enough light to be useful as a fire starter, and the mirror may not reflect enough light to be noticeable from a long way off. The compass is practical, but, like other tiny compasses, you might need to tap it a bit before it settles and points accurately. The whistle seems to work well. Coghlan's doesn't provide any information on how many decibels loud it is, but it seems loud to me. I would not use the LED light as a primary source of light while out hiking or camping, but if needed, it is bright enough to light the ground in front of you as you walk or to find things in a pack or get situated in a tent at night. The light stays on only while you hold the button down, so it won't accidentally get bumped on an waste battery power for hours or days. But also means it's hard to have two hands free while using the light. I can't comment on battery life, because I don't use to the light a lot and I'm still in the first battery. In terms of overall quality, it's not terrible, and it's not great. If you accidentally drop it, it will probably be fine. If you drop it and then step on it.... I'm not sure what might happen. Regarding its use, I think kids would love it and would probably find more use for the magnifying glass and thermometer than adults would. For outdoorsy people, it can be a handy backup gadget. I have nice flashlights, a GPS, and compasses, but this provides backups (or backups to backups) in a tiny little package that weighs next to nothing. A lot of people carry a whistleanyway, so it makes sense to carry one of these.

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-20*