---
product_id: 28983087
title: "Zacro 2 Pack Digital Aquarium Thermometer, Fish Tank Thermometer, Water Thermometer with Large LCD Display,Reptile Thermometer for Fish Tank Water Terrarium"
brand: "zacro"
price: "S/.81"
currency: PEN
in_stock: true
reviews_count: 13
category: "Zacro"
url: https://www.desertcart.pe/products/28983087-zacro-2-pack-digital-aquarium-thermometer-fish-tank-thermometer-water
store_origin: PE
region: Peru
---

# 5cm immersion depth LR44 battery included ±1°C accuracy Zacro 2 Pack Digital Aquarium Thermometer, Fish Tank Thermometer, Water Thermometer with Large LCD Display,Reptile Thermometer for Fish Tank Water Terrarium

**Brand:** zacro
**Price:** S/.81
**Availability:** ✅ In Stock

## Summary

> 🌊 Stay cool, stay precise — your fish tank’s new best friend!

## Quick Answers

- **What is this?** Zacro 2 Pack Digital Aquarium Thermometer, Fish Tank Thermometer, Water Thermometer with Large LCD Display,Reptile Thermometer for Fish Tank Water Terrarium by zacro
- **How much does it cost?** S/.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/28983087-zacro-2-pack-digital-aquarium-thermometer-fish-tank-thermometer-water)

## Best For

- zacro enthusiasts

## Why This Product

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

## Key Features

- • **Dual-Pack Convenience:** Two thermometers for simultaneous tank and water change monitoring—never miss a beat.
- • **Large, Clear LCD Display:** Quickly check temps at a glance with an easy-to-read screen designed for busy pros.
- • **Compact & Discreet Design:** Sleek, minimal footprint fits seamlessly into any modern aquarium setup.
- • **Energy-Efficient & Long-Lasting:** Powered by a single LR44 battery (included) with months of reliable use—no constant replacements.
- • **Precision Temperature Monitoring:** Get spot-on readings within ±1°C to keep your aquatic friends thriving.

## Overview

The Zacro 2 Pack Digital Aquarium Thermometer offers highly accurate water temperature readings within ±1°C, featuring a large LCD display and compact design. Each probe submerges up to 5cm for precise monitoring, powered by included LR44 batteries for long-lasting performance. Ideal for professional aquarium enthusiasts managing multiple tanks or water changes, this dual-pack ensures optimal aquatic environments with effortless temperature tracking.

## Description

desertcart.com : Zacro 2 Pack Digital Aquarium Thermometer, Fish Tank Thermometer, Water Thermometer with Large LCD Display,Reptile Thermometer for Fish Tank Water Terrarium : Pet Supplies

Review: 2pack Perfect for Aquarium and Water Changes - Work great. So much easier than trying to read a traditional thermometer. I use them on my aquarium setup. One monitors the aquarium 24/7 and the other I use during water changes to get temperature close to the tanks temperature. Works great buying a pair for that reason. People complained that the battery life is subpar....I've had mine for 5 months now, never turned off the main tank one, and still on same battery... I also wanted to test how accurate the temperature was compared to my other thermometers. Spot on and accurate! I recommend this 2 pair set for your aqaurium and water change bucket!
Review: Cost effective accurate measurement - I've had these less than 12 hours but they seem to be working perfectly. I have a huge fish tank with Bettas outside the glass sliding door in the living room. We love to watch them at night, but with the cold weather we have been having here in South Florida I put some foam insulation on the tank to prevent heat loss on the sides, and back. The bottom, top and front were still exposed, so I got an electric blanket to cover the top and front to prevent heat loss, and I stuck an Aiicioo 24 watt 18 x 8 inch Under Tank Heater pad to the bottom. I wanted to raise the electric blanket off the front so that we could watch the Betta and his 7 newborn 'kids', but I was hesitant because I wasn't sure how fast the cold weather would pull away the heat. I also have two immersion heaters in the tank, but with such a large tank I had doubts as to their performance in this cold weather. I placed the probe of one of the thermometers all the way to the bottom and got about 62 degrees Fahrenheit. I then placed the probe of the second thermometer near the surface, just over 12 inches from the immersion heaters and got 89 degrees Fahrenheit. I found it strange that the temperature at the bottom was so low, so I checked the Lutron app on my phone and saw that the switch for the heating pad was off. That was around 1:00pm, so I turned the heating pad on and left it. Around 7:00pm when we came back from shopping I took this picture and the surface temperature had dropped to 87.9 degrees and the bottom temperature had risen to 72.2 degrees, and this is with the front exposed. This is exactly what I needed the thermometers for. Knowing that the temperature would continue to fall during the night, I turned the electric blanket on to prevent heat loss from the top of the tank. As you can see in the picture, papa Betta(I gave mama away because she was eating her hatch-lings) is sitting between the two immersion heaters, even though the surface temperature is at the higher limit of his comfort zone. Bettas tend to reside at the surface so I'm not too worried about the temperature at depth, nevertheless I'd like the bottom temperature to hit 76. The funny thing is that the babies don't seem to mind zipping around in the colder water at the bottom, but they tend to stick mostly from mid-level to surface. These thermometers will allow me to properly monitor the temperatures and only turn on the electric blanket when it is absolutely needed. It's true the thermometers don't have a back light, but light uses up a lot of power, and for the few seconds I'll be looking at the thermometers, I can use the light on my cell phone. Wonderful and simple product and I love that each one comes with two good suction pads. You can't complain at this price.

## Features

- Submerge probe into fish tank to measure water temperature (Submerge probe only, do not submerge thermometer in water).
- Easy to apply suction cup and easy to read lcd screen; temperature readings to within 1 degree
- Large, easy to read lcd display; compact design for discrete use
- Temperature range -50 degree Celsius ~ + 70 degree Celsius; Operating temperature -10 degree Celsius ~ +50 degree Celsius.
- Powered by one lr44 button cell (included)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01C6PE4G2 |
| Age Range (Description) | Adult |
| Batteries | 1 Lithium Metal batteries required. |
| Best Sellers Rank | #11,197 in Pet Supplies ( See Top 100 in Pet Supplies ) #12 in Aquarium Thermometers |
| Brand | Zacro |
| Color | Black |
| Connectivity Technology | / |
| Date First Available | February 25, 2016 |
| Display Type | LCD |
| Immersion Depth | 5 Centimeters |
| Included Components | 2 pack digital aquarium thermometer, user manual |
| Indoor/Outdoor Usage | Indoor |
| Is Discontinued By Manufacturer | No |
| Item Length | 2.17 Inches |
| Item Weight | 2.08 ounces |
| Item model number | ZDT1D-AUX-1 |
| Manufacturer | Zacro |
| Model Name | ZDT1D-AUX-1 |
| Number of Batteries | 1 Lithium Metal batteries required. |
| Outer Material | Plastic |
| Power Source | Battery Powered |
| Product Care Instructions | Wipe Clean |
| Response Time | 2 seconds |
| Reusability | Reusable |
| Special Feature | High Accuracy |
| Style | 2 Packs |
| UPC | 702562153056 |
| Unit Count | 2 Count |
| Upper Temperature Rating | 70 Degrees Celsius |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Zacro
- **Color:** Black
- **Connectivity Technology:** /
- **Display Type:** LCD
- **Included Components:** 2 pack digital aquarium thermometer, user manual
- **Outer Material:** Plastic
- **Product Care Instructions:** Wipe Clean
- **Special Feature:** High Accuracy
- **Unit Count:** 2 Count

## Images

![Zacro 2 Pack Digital Aquarium Thermometer, Fish Tank Thermometer, Water Thermometer with Large LCD Display,Reptile Thermometer for Fish Tank Water Terrarium - Image 1](https://m.media-amazon.com/images/I/71lPFzRu+fL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 2pack Perfect for Aquarium and Water Changes
*by J***. on December 25, 2025*

Work great. So much easier than trying to read a traditional thermometer. I use them on my aquarium setup. One monitors the aquarium 24/7 and the other I use during water changes to get temperature close to the tanks temperature. Works great buying a pair for that reason. People complained that the battery life is subpar....I've had mine for 5 months now, never turned off the main tank one, and still on same battery... I also wanted to test how accurate the temperature was compared to my other thermometers. Spot on and accurate! I recommend this 2 pair set for your aqaurium and water change bucket!

### ⭐⭐⭐⭐⭐ Cost effective accurate measurement
*by R***H on December 17, 2017*

I've had these less than 12 hours but they seem to be working perfectly. I have a huge fish tank with Bettas outside the glass sliding door in the living room. We love to watch them at night, but with the cold weather we have been having here in South Florida I put some foam insulation on the tank to prevent heat loss on the sides, and back. The bottom, top and front were still exposed, so I got an electric blanket to cover the top and front to prevent heat loss, and I stuck an Aiicioo 24 watt 18 x 8 inch Under Tank Heater pad to the bottom. I wanted to raise the electric blanket off the front so that we could watch the Betta and his 7 newborn 'kids', but I was hesitant because I wasn't sure how fast the cold weather would pull away the heat. I also have two immersion heaters in the tank, but with such a large tank I had doubts as to their performance in this cold weather. I placed the probe of one of the thermometers all the way to the bottom and got about 62 degrees Fahrenheit. I then placed the probe of the second thermometer near the surface, just over 12 inches from the immersion heaters and got 89 degrees Fahrenheit. I found it strange that the temperature at the bottom was so low, so I checked the Lutron app on my phone and saw that the switch for the heating pad was off. That was around 1:00pm, so I turned the heating pad on and left it. Around 7:00pm when we came back from shopping I took this picture and the surface temperature had dropped to 87.9 degrees and the bottom temperature had risen to 72.2 degrees, and this is with the front exposed. This is exactly what I needed the thermometers for. Knowing that the temperature would continue to fall during the night, I turned the electric blanket on to prevent heat loss from the top of the tank. As you can see in the picture, papa Betta(I gave mama away because she was eating her hatch-lings) is sitting between the two immersion heaters, even though the surface temperature is at the higher limit of his comfort zone. Bettas tend to reside at the surface so I'm not too worried about the temperature at depth, nevertheless I'd like the bottom temperature to hit 76. The funny thing is that the babies don't seem to mind zipping around in the colder water at the bottom, but they tend to stick mostly from mid-level to surface. These thermometers will allow me to properly monitor the temperatures and only turn on the electric blanket when it is absolutely needed. It's true the thermometers don't have a back light, but light uses up a lot of power, and for the few seconds I'll be looking at the thermometers, I can use the light on my cell phone. Wonderful and simple product and I love that each one comes with two good suction pads. You can't complain at this price.

### ⭐⭐⭐⭐ Simple,easy, accurate
*by B***N on December 5, 2025*

These are not heavy duty by any means, but they work perfect for the outdoor turtle pond. The reading is pretty accurate, easily accurate enough for the environment. Easy to use, no maintenance required until you have to change the battery. These tend to last me a few years each, which is highly acceptable for the price point.

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-03-20*