Please give basic steps for trying buzzer alarm, with probe put against a light bulb to activate alarm. Logging say every 10seconds?

I don't know if it has a buzzer or not. I can't try it out at the moment because my devices are in use. The Amazon site says it has a buzzer, but the operator's manual doesn't mention it. If you use 10 second logging, then you'll only get about 2 days logging before you have to reset the device. I have used one of mine to record immersion heater on-off by taping the probe to the cable, and there is a ~15C temperature rise when the 13A is flowing. I used 1 minute logging. I doubt if your bulb would take enough current for this to work for you, but you should see a temperature rise from the bulb itself (like you are planning).

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🌡️ Stay cool, stay informed—never let temperature surprises catch you off guard!

INSTANT ALERTS - Configurable buzzer and LCD alarms keep you ahead of any temperature breach.
LONG LASTING POWER - Replaceable CR2450 battery lasts up to a year or power via USB for uninterrupted use.
MASSIVE DATA STORAGE - Stores up to 16,000 temperature points—never miss a critical fluctuation.
SEAMLESS DATA EXPORT - USB connectivity lets you export reports in PDF or Excel—perfect for professional audits.
DUAL SENSOR PRECISION - Internal & external sensors cover -40℉ to 185℉ with ±0.9℉ accuracy for flawless monitoring.

The Elitech RC-4 Temperature Data Logger is a professional-grade device featuring dual internal and external sensors, capable of recording up to 16,000 temperature points across a wide range (-40℉ to 185℉) with ±0.9℉ accuracy. It includes a clear LCD display, configurable buzzer alarms, and USB connectivity for easy data export in PDF or Excel formats. Powered by a replaceable CR2450 battery lasting up to one year or USB power, it’s designed for reliable, long-term temperature monitoring in demanding environments.

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Manufacturer	Elitech
Part number	RC-4 UK
Item Weight	100 g
Product Dimensions	8.4 x 4.4 x 2 cm; 100 g
Batteries	1 CR2 batteries required. (included)
Item model number	RC-4
Size	1 Pcs
Colour	Temperature
Style	RC-4 (TEMP)
Power source type	Battery Powered
Item Package Quantity	1
Display style	LCD
Plug profile	Tabletop
Special Features	Alarm
Included components	Battery
Batteries included?	Yes
Batteries Required?	No
Battery Cell Type	Lithium Manganese Dioxide

Elitech Temperature Data Logger, RC-4 16000 Readings USB Recorder with Double Sensors LCD Display Buzzer Alarm

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