The team behindPhasmophobiahas put a lot of effort into creating a more grounded ghost hunting experience. I, for one, applaud the developer’s efforts to realistically depict someone who can barely run for three seconds (I am so out of shape, I’m non-euclidean).

What else makes it such an intriguing horror game is the pretty accurate array of tools to help you identify spectral beings. One of those is a good old-fashioned thermometer, as somePhasghosties turn their room into popsicles with freezing temps.

Phasmophobia: all three types of thermometer in the display case surrounded by other ghost hunting items.

We’re all aware – whether we’re believers or not – that ghostly activity is typically linked with a sudden drop in temperatures; sometimes referred to as “cold spots.”Phasmoembraces that idea, so we’re going to take a quick look at the game’s Thermometers and how each tier can help you identify what type of apparition you’re dealing with.

How does the Thermometer inPhasmophobiawork?

We’ve all been there. We’ve all experienced illness where we’ve been left to sweat it out in bed. We all know what it’s like to have a thermometer jammed into our mouth and other orifices (orifi?). If you’re old school, it’s waiting to see that red or blue line move up the scale, letting you know there’s no P.E. for you today (hoorah!).

You know how they work, even if you don’t knowhowthey work. Well, the ones inPhasmoare exactly the same. The game incorporates environmental temperatures into each investigation. All ghosts and ghost rooms will see temperatures drop, which clues you into where you should focus on.

Phasmophobia: the Tier 1 Thermometer showing an analog reading in front of a basement fridge.

However, it’s the presence of subzero temperatures that are a big clue, as only some apparitions will make temperatures drop that low. It used to be that seeing your foggy breath was a surefire way to determine whether you were in a freezing room or not. Over time, though, the Thermometer has become more important.

The three Tiers of the Thermometer

Like all items inPhasmophobia—such as the Spirit Box—the Thermometer comes in three tiers:

Thermometer unlock requirements:

Weirdly, the Tier 1 Thermometer is arguably the best one. As it’s just a simple one with the classic red liquid inside that rises or falls, it works passively. This means you only have to hold it in your hand and wait a couple of seconds to see a real-time change in temperatures. Also, because it’s non-digital, it doesn’t get interfered with during a ghost hunt, which also makes it a vital in challenges banning electrical equipment.

Tier 2 and Tier 3 are digital, giving visual readouts on a small screen. While they work by emitting a ray a short distance in front of you—thus giving you a reading from further away—they require more interaction. For starters, you need to turn them on. Then, when you need to take a reading, you hold down the right-mouse button (default). The difference between Tier 2 and Tier 3 is the latter provides a much quicker reading.

Phasmophobia: a hand holding the Tier 2 Thermometer that’s showing a temperature of 17.9 degrees.

Some additional tips for freezing temps

The Thermometer inPhasmophobiais a pretty straightforward, though ultimately useful, tool in helping you identify the ghost type. However, for that extra dose of help, here are some tips and things to consider when using it:

Phasmophobia: a hand holding the Tier 3 Thermometer, which is showing a temperature of 12 degrees in a dining room.

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