Help me build a digital thermometer

dave_dj1 · Feb 17, 2023

I would like to fabricate a digital read out thermometer to monitor the temp of the syrup as it's being made. Basic premise is to see temp at a glance.
I have two requirements, fairly large digital readout like 2-3 inch numbers
Must be able to read up to 220 plus F. (about the temp for syrup)
I can solder, am somewhat familiar with the components I just don't know the architecture.
I am wanting to mount it about 8-10' from the pan.
I'm not opposed to buying something but in my searching I haven't found anything that suits me yet.
Don't want bluetooth
we do have power in the sugarhouse.
Thanks

SomeGuyFromOlympia · Feb 17, 2023

not trying to be a dick but.....

isn't this an off the shelf kitchen item?
little old ladies need big readouts, I bet you that there is something

samy crawler · Feb 17, 2023

3" Digit LED Display Temp / Humidity Meter

Large display meters are widely used in the medical industry, electronic, food, textile, HVAC, warehouse, hospitality to name a few. TIPTEMP can help satisfy your various requirements perfectly. Widely used in museum, office, hotel, restaurant, school, meeting room, waiting room, hospital...

www.tiptemp.com

87manche · Feb 17, 2023

samy crawler said:
3" Digit LED Display Temp / Humidity Meter

Large display meters are widely used in the medical industry, electronic, food, textile, HVAC, warehouse, hospitality to name a few. TIPTEMP can help satisfy your various requirements perfectly. Widely used in museum, office, hotel, restaurant, school, meeting room, waiting room, hospital...

www.tiptemp.com

$400?

damn.

can do the same for less than a hundo with some arduino.

Arduino - Temperature Humidity Sensor - LCD | Arduino Tutorial

Learn: how to use Arduino to read temperature and humidity from DHT11/DHT22 sensor and display temperature and humidity on LCD, how to combine DHT11, DHT22 code and LCD code, how to program Arduino step by step. The detail instruction, code, wiring diagram, video tutorial, line-by-line code...

arduinogetstarted.com

samy crawler · Feb 17, 2023

87manche said:
can do the same for less than a hundo with some arduino.

Arduino - Temperature Humidity Sensor - LCD | Arduino Tutorial

Learn: how to use Arduino to read temperature and humidity from DHT11/DHT22 sensor and display temperature and humidity on LCD, how to combine DHT11, DHT22 code and LCD code, how to program Arduino step by step. The detail instruction, code, wiring diagram, video tutorial, line-by-line code...

arduinogetstarted.com

Dave can do it!

dave_dj1 · Feb 17, 2023

SomeGuyFromOlympia said:
not trying to be a dick but.....

isn't this an off the shelf kitchen item?
little old ladies need big readouts, I bet you that there is something

Well the 8-10' probe cable seems to be one limiting factor but I also haven't found anything overly large to read at a glance. I do like the bit red one but not at $400...lol

SomeGuyFromOlympia · Feb 17, 2023

dave_dj1 said:
Well the 8-10' probe cable seems to be one limiting factor but I also haven't found anything overly large to read at a glance. I do like the bit red one but not at $400...lol

I found a remote temp for the powdercoat oven that I can watch from inside a different shop

want to say I found it at Home Depot a few years back

SomeGuy · Feb 17, 2023

Just need a thermocouple, some wire, and something to hook it up to...pretty trivial?

Elwenil · Feb 17, 2023

https://smile.amazon.com/Organizer-Thermometer-Temperature-Refrigerator-Fahrenheit/dp/B07YFQ33XC/ref=sr_1_3?crid=3KZHCKCKOHFJH&keywords=temperature+lcd+display&qid=1676681181&sprefix=temperature+lcd%2Caps%2C438&sr=8-3

WHATAHEEP · Feb 17, 2023

Amazon.com

www.amazon.com

Multimeter with temp thermocouple. Could buy a better brand but this has a pretty big display,

RunningProblem · Feb 17, 2023

Inkbird ITC 308
Inkbird ITC-308 Digital Temperature Controller 2-Stage Outlet Thermostat Heating and Cooling Mode Carboy Homebrew Fermenter Greenhouse Terrarium 110V 10A 1100W https://a.co/d/4rxrAtY

Thermapen company makes this too

DOT® Simple Alarm Thermometer

Specializing in cool, unique and professional temperature tools. Super-Fast thermocouples, thermistors, infrared thermometers, data logging and more.

www.thermoworks.com

78bronco460 · Feb 18, 2023

Weber igrill and Bluetooth to phone or tablet

jeeptj19992001 · Feb 18, 2023

Burned syrup?

Automatic Draw-Off Valve for all Smoky Lake Auto Draw-Off Systems

Stainless steel valve is available in two sizes: 3/4" and 1". Unlike competitor solenoid valves, this valve is a soft open and close to prevent surging.

www.smokylakemaple.com

PoBoy84 · Feb 18, 2023

78bronco460 said:
Weber igrill and Bluetooth to phone or tablet

Honestly this is the best and most simple answer. I'd give him mine for free, but I left it in the rain. They don't like that.

Donk · Feb 18, 2023

One of the various bbq thermometers out there? I've got a 50 buck inkbird with 4 thermocouples, a big LCD readout and an app on my phone that I can use to set temp, time, etc alarms. It also graphs temp over time so you can review your cook.

If you want diy I'd just use an arduino. Plenty of tutorials and parts out there. Coding for temp sensor and LCD readout will be very simple.

PoBoy84 · Feb 18, 2023

Donk said:
One of the various bbq thermometers out there? I've got a 50 buck inkbird with 4 thermocouples, a big LCD readout and an app on my phone that I can use to set temp, time, etc alarms. It also graphs temp over time so you can review your cook.

If you want diy I'd just use an arduino. Plenty of tutorials and parts out there. Coding for temp sensor and LCD readout will be very simple.

Inkbird like the Kegorator controllers?

Southernfriedcj8 · Feb 18, 2023

Feels warm.

Cryptictoy · Feb 18, 2023

This is 12 volt and cheap,not as big as you want but if you get the right probe that's longer you can probably get closer to you . If you search home brew kettle stuff you will find alot , from a weld in bung to high temp silicone thread style. Also there are probes that have a plug on them which is probably something you'd want for non use storage. It seems like there is no in between in the size or price. Big ones are commercial unit and big money.

Amazon.com

www.amazon.com

dave_dj1 · Feb 18, 2023

jeeptj19992001 said:
Burned syrup?

Automatic Draw-Off Valve for all Smoky Lake Auto Draw-Off Systems

Stainless steel valve is available in two sizes: 3/4" and 1". Unlike competitor solenoid valves, this valve is a soft open and close to prevent surging.

www.smokylakemaple.com

No, just thought I could do this to see temps at a glance .

dave_dj1 · Feb 18, 2023

Cryptictoy said:
This is 12 volt and cheap,not as big as you want but if you get the right probe that's longer you can probably get closer to you . If you search home brew kettle stuff you will find alot , from a weld in bung to high temp silicone thread style. Also there are probes that have a plug on them which is probably something you'd want for non use storage. It seems like there is no in between in the size or price. Big ones are commercial unit and big money.

Amazon.com

www.amazon.com

Problem with this one it only goes to 99.9F I need to go over 220.00 F

87manche · Feb 18, 2023

dave_dj1 said:
Problem with this one it only goes to 99.9F I need to go over 220.00 F

well as much as I'd say build one.

just buy this and don't use to as a controller.

https://www.amazon.com/dp/B01HXM5UAC?aaxitk=b09e5736ea09e02f90c74672fe16811e&pd_rd_plhdr=t&ref=dacx_dp_2962999830101_588444576638563096&th=1

goes to 250.
$35 with a 20% off coupon.
6' cord.

[486] · Feb 18, 2023

didn't read thread

110V-220V Universal STC-1000 Digital Temperature Controller Thermostat w/ Sensor | eBay

1 Thermostat. Heating and cooling dual function with over-temp alarm. Sensor h type: imported NTC sensor, cable length 1m/3.3ft. The corrected temperature = the temperature before correction + the corrected value.

www.ebay.com

[486] · Feb 18, 2023

dave_dj1 said:
Problem with this one it only goes to 99.9F I need to go over 220.00 F

I've got a couple of those, was gonna do four pyrometers on an engine, they go to 900C

Cryptictoy · Feb 18, 2023

dave_dj1 said:
Problem with this one it only goes to 99.9F I need to go over 220.00 F

Well that description is a bit confusing, almost reads that if you start out with low - temp only reads till 99.9, but if starts out at higher temp it will go 999deg. There were a few pics below that a guy used a couple for a coffee bean roaster. I Googled that temp and come up with 350-480 deg.

dave_dj1 · Feb 18, 2023

Thanks everyone, looks like I have a few great options and I won't have to build one :beer:

Donk · Feb 18, 2023

PoBoy84 said:
Inkbird like the Kegorator controllers?

They seem to make thermometers of all descriptions for various hobbies.

This is the one I've got https://www.amazon.co.uk/gp/product/B0771HXF9W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Help me build a digital thermometer

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