---
product_id: 51916002
title: "TFA 40.2003 Neptune Swimming Pool Thermometer"
brand: "tfa"
price: "€ 13.08"
currency: EUR
in_stock: true
reviews_count: 4
url: https://www.desertcart.fi/products/51916002-tfa-40-2003-neptune-swimming-pool-thermometer
store_origin: FI
region: Finland
---

# Floating flexible foam body Precise 38.5 cm length for easy reading Clear blue/white high-contrast design TFA 40.2003 Neptune Swimming Pool Thermometer

**Brand:** tfa
**Price:** € 13.08
**Availability:** ✅ In Stock

## Summary

> 🌡️ Dive into precision – know your pool’s perfect temp every time!

## Quick Answers

- **What is this?** TFA 40.2003 Neptune Swimming Pool Thermometer by tfa
- **How much does it cost?** € 13.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/51916002-tfa-40-2003-neptune-swimming-pool-thermometer)

## Best For

- tfa enthusiasts

## Why This Product

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

## Key Features

- • **Tangle-Free Use:** Includes a fastening rope to keep your thermometer secure and always within reach.
- • **Lightweight & Portable:** At just 316g, it’s easy to handle and store without hassle.
- • **Optima Capillary Display:** Experience crystal-clear analog readings with the easy-to-read 'Optima' capillary scale.
- • **Effortless Pool Monitoring:** Float and read instantly with the flexible foam body that stays perfectly buoyant.
- • **German Precision Engineering:** Crafted in Germany for reliable quality and durability you can trust.

## Overview

The TFA 40.2003 Neptune Swimming Pool Thermometer features a floating flexible foam body and a highly readable 'Optima' capillary analog display. Made in Germany with durable plastic, it measures 38.5 cm in length and includes a fastening rope for secure use. Lightweight at 316g, it requires no batteries and offers reliable, easy pool temperature monitoring.

## Description

Full description not available

## Features

- Floating body flexible foam
- Made of plastic
- blue/white colour
- Made in Germany
- Well readable "Optima"-capillary with fastening rope

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | TFA |
| Part number | 40.2003 |
| Item Weight | 316 g |
| Product Dimensions | 12.5 x 12.5 x 38.5 cm; 316 g |
| Item model number | 40.2003 |
| Size | L 125 x B 125 x H 385 mm |
| Colour | white/blue |
| Style | Swimming pool thermometer |
| Material | Plastic |
| Power source type | Battery Powered |
| Item Package Quantity | 1 |
| Measurement System | Metrik |
| Measurement Accuracy | / |
| Display style | Analog |
| Specification met | / |
| Special Features | Particularly easy to read "Optima capillary" |
| Included components | Pool thermometer with attachment line |
| Batteries included? | No |
| Batteries Required? | No |
| Battery Cell Type | Alkaline |

## Product Details

- **Brand:** TFA
- **Special feature:** Particularly easy to read "Optima capillary"
- **Colour:** white/blue
- **Age range (description):** Adult
- **Included components:** Pool thermometer with attachment line
- **Outer material:** Plastic
- **Specification met:** /
- **Display type:** Analog
- **Connectivity technology:** /
- **Product care instructions:** Wipe Clean

## Images

![TFA 40.2003 Neptune Swimming Pool Thermometer - Image 1](https://m.media-amazon.com/images/I/71m44nLvMrL.jpg)
![TFA 40.2003 Neptune Swimming Pool Thermometer - Image 2](https://m.media-amazon.com/images/I/71WvG-Xzp8L.jpg)
![TFA 40.2003 Neptune Swimming Pool Thermometer - Image 3](https://m.media-amazon.com/images/I/61BynuP844L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to read and accurate
*by P***R on 20 August 2020*

Easily read and gives an accurate readyof the pool’s temperature.

### ⭐⭐⭐⭐⭐ Easy to read before you get in
*by S***O on 28 June 2014*

The best and longest lasting pool thermometer this is our second one to replace our old tatty one which we have had for 10 years, at first it was top heavy and kept falling on its side but after adjusting the float up slightly it's perfect

### ⭐⭐⭐⭐⭐ Top Pool Thermometer
*by M***S on 15 July 2014*

Excellent item, if a little on the expensive side.

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**Shop now:** [https://www.desertcart.fi/products/51916002-tfa-40-2003-neptune-swimming-pool-thermometer](https://www.desertcart.fi/products/51916002-tfa-40-2003-neptune-swimming-pool-thermometer)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-12*