A one-piece wall-mount unit for a small walk-in freezer or cooler, installed without a refrigeration technician. Good where nobody local will charge a split system.
Amazon $5,191
The standard way to build a farm or hunting walk-in on a budget: an insulated room, a window air conditioner and this controller. Get the Pro if you want phone alerts.
- Down to 34 FTemperature
- Needs a separate air conditionerInsulation
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
- Turns a window or mini-split air conditioner into walk-in refrigeration for a fraction of a condensing unit’s price
- Holds 34 F in a well-insulated room
- No wiring or refrigeration work to install
- You also need a compatible air conditioner sized for the room
- Cooler only, it can’t run a freezer
- No app or remote alerts on this model
The CoolBot family
Every CoolBot model we rank, smallest first. Ratings compare each against its own type.
| Model | Size | Rating | Price |
|---|---|---|---|
| CoolBot Walk-In Cooler Controller (this one) | - | 2.7/5 | $349 |
| CoolBot Pro | - | 2.7/5 | $399 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | CoolBot |
|---|---|
| Refrigeration | |
| Refrigeration included | No |
| System | Controller for an air conditioner |
| Box temperature | Down to 34 F |
| Installation | Needs a separate air conditioner |
| Wi-Fi monitoring | No |
| Warranty and build | |
| Parts warranty | 1 year |
Alternatives in this type
A complete split condensing unit and evaporator set at a low price, for a walk-in where a refrigeration technician will run the line set and charge it. The evaporator, not the condensing unit, sets its real capacity.
Amazon $4,494The CoolBot with Wi-Fi monitoring, worth the small premium for any cooler holding produce or meat you can’t afford to lose. Pair it with a window or mini-split air conditioner.
Amazon $399Compare
Compare the CoolBot Walk-In Cooler Controller with any other walk-in cooler →
More from CoolBot: every CoolBot product ranked.