Varanus scalaris is a medium-sized arboreal monitor species with a typical snout-vent length (excluding the tail) ranging from around 18-28cm in adults.

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The coloration of scalaris monitors varies based on their locality, which comprises a complex that may include different species or subspecies. In general, most localities have a light-colored to cream underside and a dark base color on the back, adorned with lighter-colored ocelli and tail bands. To observe the specific coloration and patterns of different localities, it's best to refer to images with locality labels.

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Scalaris monitors are distributed throughout northern Australia, covering the cape in Queensland (QLD) and extending to Western Australia (WA). They are arboreal species and can be found in various environments, ranging from open woodlands to rainforests. However, they are usually associated with larger trees that provide hollows or shelter under bark.

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The availability of scalaris monitors in the Australian hobby may vary from year to year, depending on the localities on offer. This may be due, in part, to their reproduction, with single clutches per season being more common, while multiple clutches may be rarer or unrecorded.

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In captivity, scalaris monitors can be flighty animals, although some individuals, especially males, can become habituated to human interaction and presence once they settle in. Building trust with them can be rewarding. Tong feeding can be established as they mature, and many individuals are receptive to this feeding method.

It's important to note that this species is not meant to be handled socially. They are more of a "look but don't touch" type of monitor.

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Husbandry for scalaris monitors is generally straightforward.

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Enclosure size: Since they are arboreal, they prefer enclosures with more vertical space. A minimum enclosure size of 100cm in length and height should be considered.

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Substrate and furnishings: Sand and soil substrates are suitable for this species. Providing plenty of hollows for hides and stacked bark pieces vertically is recommended. Scattering leaf litter on the flooring can also keep them occupied.

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Temperatures and lighting: Adequate UVB lighting is crucial. A basking hot spot with a bright lamp directed onto a rock or tiles should be provided, with temperatures ideally ranging from 50-65°C. The ambient heat gradient over the rest of the enclosure should be around 28-33°C during the warmer active months.

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Humidity: The humidity requirements may vary depending on the locality of the monitor. Adjusting the humidity levels to match their specific habitat is important. Humidity hides should always be provided.

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Feeding: The bulk of their diet should consist of crickets, wood roaches, and other insects. Regular dusting of calcium powder and vitamins is necessary. Additionally, occasional additions to their diet can include chopped pinkie mice, lean turkey or chicken mince, chopped chicken hearts, boiled chicken eggs, quail eggs, and chopped day-old quail. Providing a well-balanced variety of food is important.

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Life span: Varanus scalaris monitors have a lifespan of over 12 years in captivity.