Skip to product information
1 of 5

Mini Digital Thermometer

Mini Digital Thermometer

Temperature Monitoring

MINI DIGITAL THERMOMETER

The industry standard aquarium thermometer — stripped back, reliable, and now available in two colours so you can colour-code your tanks. Black probe or yellow probe. Your system, your colour match.

Black Variant
Yellow Variant
±0.1°CAccuracy
1mProbe Cable
2xSuction Cups
DUAL COLOUR Now available in both Black and Yellow — colour-code your tanks!
NO PACKAGING Supplied without retail boxes — less waste, lower cost, more value
TRUSTED The industry standard digital thermometer for freshwater and saltwater systems
Black & Yellow Variants
1m Submersible Probe
Dual Suction Cups
Battery Included (LR44)
Fresh & Saltwater Safe
Bulk & Wholesale Pricing
We all know this one. It is the industry standard for a reason — these little dudes just work! The classic wired-probe digital thermometer, stripped back to the essentials. We are offering these units without the retail packaging to keep costs down and reduce waste — the perfect option for stocking your facility, filling your fish room, or grabbing a bargain for your store bins. And now with BLACK and YELLOW colour options, you can assign a different colour to each tank — black for broodstock, yellow for grow-out, or whatever system makes sense for your facility.

Two Colours. One Legendary Thermometer.

Same bulletproof digital thermometer you have relied on for years — now in two colourways so you can visually organise your tanks, systems, or store displays at a glance.

BLACK Variant

The classic stealth look. Black display unit with black probe — blends seamlessly into darker tank backgrounds and equipment racks. Perfect for broodstock systems, quarantine, or anywhere you want a clean, understated install.

# COLOUR-CODE → BLACK TANKS

YELLOW Variant

High-visibility confidence. Yellow display unit with yellow probe — easy to spot at a glance across the fish room. Ideal for grow-out tanks, display aquariums, or store bins where you want the reading to pop.

# COLOUR-CODE → YELLOW TANKS

Why Professionals Choose Mini Digitals

When you are running dozens or hundreds of tanks, you need a thermometer that does not complicate your life. No apps, no calibrations, no nonsense — just plug it in and read.

01

Unapologetically Simple

No Bluetooth pairing. No firmware updates. No phone apps. One button toggles Celsius and Fahrenheit. That is it. Your staff already know how to use it because everyone knows how to read a number.

02

Field-Proven Reliability

You have seen these units in fish rooms, hatcheries, and aquarium stores across the world for over a decade. They survive drops, splashes, and the occasional knock because the LCD is recessed and the housing is built solid.

03

Dual Colour = Dual Purpose

With BLACK and YELLOW variants, you can instantly assign colours to different systems. Black for broodstock, yellow for grow-out. Black for quarantine, yellow for display. Your system, your scheme — at a glance.

Engineered for Fish Rooms

Every feature exists because a fish farmer or store owner asked for it. No fluff — just practical, durable hardware that works when you need it.

Dual Suction Cups

One cup for the display unit — mount it anywhere on the glass. One cup for the probe — hold it at the exact depth you need. Independent placement means the screen is always readable where you want it.

1-Metre Submersible Probe

Fully waterproof probe on a 1-metre cable gives you reach into deep sumps, tall display tanks, and awkwardly placed filtration compartments. Place it where the actual water temperature matters, not just at the surface.

Battery Included (LR44/AG13)

Ready to go straight out of the box — or bag, since we skip the retail packaging. Uses a widely available LR44/AG13 button cell you can grab at any supermarket or hardware store.

°C / °F Toggle

One-press toggle between Celsius and Fahrenheit. No menus, no long-press confusion — just a single button that cycles the display. Simple enough for any team member to operate.

Fresh & Saltwater Safe

The probe and cable are built to handle both freshwater and marine environments. No special precautions needed — drop it in and it reads. Used in hatcheries running everything from trout to coral propagation.

Large LCD Readout

Big, high-contrast LCD digits you can read from across the room. No squinting, no glasses required — designed for quick walk-by checks when you have 50 tanks to scan before lunch.

No Retail Packaging

We ship these units without the wasteful retail box. Less plastic in landfill, lower cost to you, and less time spent opening shrink-wrapped blisters. Because you are buying equipment, not a gift box.

Miniature Footprint

The display unit is barely larger than a matchbox. Mount it on the tank glass and it stays out of the way — no bulky controller boxes, no dangling wires across walkways. Clean and compact.

Common Questions

QAre the BLACK and YELLOW thermometers identical apart from the colour?
Yes — identical internals. The only difference is the colour of the display housing and probe. Same sensor, same accuracy, same cable length. The colour is purely for visual tank-coding.
QHow long does the battery last?
The LR44/AG13 button cell typically lasts 6–12 months of continuous use. The display auto-dims when not being read. Replacement batteries are available everywhere — supermarkets, hardware stores, pharmacies, or just add a strip to your next BTA order.

Fit Out Your Store or Facility

Wholesale pricing available — fit out your entire store, stock your fish room, or keep bulk digital thermometers on the shelf. Black and yellow variants available in volume. Contact us for a custom quote.

Get Wholesale Pricing
View full details
Your cart
Variant Variant total Quantity Price Variant total
Mini Digital Aquarium Thermometer BLACK x 1 pkMDTx1
Mini Digital Aquarium Thermometer BLACK x 1 pkMDTx1
$11.25/ea
$0.00
$11.25/ea $0.00
Mini Digital Aquarium Thermometer BLACK x 3 pkMDTx3
Mini Digital Aquarium Thermometer BLACK x 3 pkMDTx3
$27.50/ea
$0.00
$27.50/ea $0.00
Mini Digital Aquarium Thermometer BLACK x 5pkMDTx5
Mini Digital Aquarium Thermometer BLACK x 5pkMDTx5
$41.25/ea
$0.00
$41.25/ea $0.00
Mini Digital Aquarium Thermometer BLACK- BREEDER PACK x 10pkMDTx10
Mini Digital Aquarium Thermometer BLACK- BREEDER PACK x 10pkMDTx10
$71.50/ea
$0.00
$71.50/ea $0.00
Mini Digital Aquarium Thermometer YELLOW x 1 pkMDTx1-Y
Mini Digital Aquarium Thermometer YELLOW x 1 pkMDTx1-Y
$11.25/ea
$0.00
$11.25/ea $0.00
Mini Digital Aquarium Thermometer YELLOW x 3 pkMDTx3-Y
Mini Digital Aquarium Thermometer YELLOW x 3 pkMDTx3-Y
$27.50/ea
$0.00
$27.50/ea $0.00
Mini Digital Aquarium Thermometer YELLOW x 5 pkMDTx5-Y
Mini Digital Aquarium Thermometer YELLOW x 5 pkMDTx5-Y
$41.25/ea
$0.00
$41.25/ea $0.00
Mini Digital Aquarium Thermometer YELLOW - BREEDER PACK x 10pkMDTx10-Y
Mini Digital Aquarium Thermometer YELLOW - BREEDER PACK x 10pkMDTx10-Y
$71.50/ea
$0.00
$71.50/ea $0.00

View cart
0

Total items

$0.00

Product subtotal

Taxes included. Discounts and shipping calculated at checkout.
View cart