# Temperatures in Pizzeria freezers 🥶

**URL:** <https://discourse.nodered.org/t/temperatures-in-pizzeria-freezers/99041>\
**Category:** General\
**Created:** [13 September 2025 18:11 UTC](https://discourse.nodered.org/t/temperatures-in-pizzeria-freezers/99041 "2025-09-13T18:11:48Z")\
**Posts on this page:** 1\
**Showing post:** 34

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**Author:** ![E1cid](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/e1cid/32/77971_2.png) [@E1cid](https://discourse.nodered.org/u/E1cid)\
**Post date:** [16 September 2025 12:45 UTC](https://discourse.nodered.org/t/temperatures-in-pizzeria-freezers/99041/34 "2025-09-16T12:45:49Z")

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Sonoff zigbee devices will require a zigbee controller and possible repeaters, as battery devices can not act as network repeaters.

Do the fridges already have a temp display?

Shelly uni and a DS18B20 (-55C) about 25 euros and can be installed in the fridges with existing control gear. No batteries to change.  
You could add a cheap esp32 displays [Wall mounted Node-RED touch screen device: Request for ideas and volunteers](https://discourse.nodered.org/t/wall-mounted-node-red-touch-screen-device-request-for-ideas-and-volunteers/51136)

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