Boyu · Electronic / app
PTC Digital Heater
- Heater
- 300–1,000 W
Large aquariums that need serious heating with accurate control.
4 models
SunSun · Electronic / app
SunSun ARB Digital Heater
A high-power heater (500 to 1,000 W) with a separate digital display controller, remote and thermistor probe. Built for 300 to 900 litre tanks.
Updated
500–1,000 W3 models
Will it suit my tank?
litres
Best for
Large display tanks and sumps.
What stands out
- 500, 800 and 1,000 W
- External digital controller with probe
- Remote control
- Rated for 300 to 900 litres
Models and specs
| Model | Heater | Tank size | Length | Temperature range |
|---|---|---|---|---|
| ARB-550 | 500 W | 300–500 L | 19 cm | 20 to 35 °C |
| ARB-580 | 800 W | 500–700 L | 19 cm | 20 to 35 °C |
| ARB-5100 | 1,000 W | 700–900 L | 19 cm | 20 to 35 °C |
- Brand
- SunSun
- Control
- Digital controller, remote, separate probe
Figures from the maker's published specifications. Makers revise products, so check the current figures before buying. Photos supplied by the brand or its distributor.
Compare with
Browse all heaters
Eheim · Electronic / app
thermocontrol+e
- Heater
- 150–300 W
- Tank size
- 200–1000 L
Larger tanks where you want remote alerts about temperature, especially if you are away a lot.
3 models
UNS · Electronic / app
Micro Aquarium Heater
- Heater
- 10–20 W
- Tank size
- 3.8–18.9 L
Betta tanks and nano cubes under 20 litres where a normal glass heater would dominate the tank.
2 models
SunSun · Electronic / app
XRB Intelligent Heater
- Heater
- 600–1,000 W
- Tank size
- 300–900 L
Large tanks and sumps.
2 models
Frequently asked questions
Quick answers about the SunSun ARB Digital Heater, drawn from its specs.
What size tank is the SunSun ARB Digital Heater for?
The maker rates it by model: ARB-550 up to 500 L, ARB-580 up to 700 L, ARB-5100 up to 900 L.
What wattage is the SunSun ARB Digital Heater?
500 to 1,000 W across the range. As a rule of thumb that covers roughly 333–1,000 L in a normally heated room, at about 1 W per litre.
Who is the SunSun ARB Digital Heater best for?
Large display tanks and sumps.
What are the alternatives to the SunSun ARB Digital Heater?
Other heaters worth comparing: Boyu PTC Digital Heater, Eheim thermocontrol+e, UNS Micro Aquarium Heater. Add any of them to the compare table to see the specs side by side.