Question 1

Send me a link where I can buy more tips for this product please?

Accepted Answer

Dear customer,
Thank you very much for your question.

Yes, of course. Please look at Yihua # 1200 soldering tips set that are compatible with your 939D+ machine.

The link to the product page is here: https://www.amazon.com/dp/B07RNQWS62

Or you can please search with the ASIN (B07RNQWS62) on Amazon.

If you have questions or require assistance, please do feel free to contact via the Amazon Messaging System (link is here: https://amzn.to/2mKq0EU). We are always happy to assist!

Best regards,
YIHUA OFFICIAL STORE

Question 2

How long is the cord itself between the iron and the station (excluding the iron)?

Accepted Answer

The cord is about three feet long, so you will need a place to set the controller.

Question 3

Does it goes to sleep, when you put the iron  in  holder, or has a preset time ?

Accepted Answer

Dear Gabe,

The YIHUA 939D+-III supports a Sleep Mode function that can be configured for 5, 10, 15, 20, 30 minutes. This is how it works:

1.	Put the iron into the holder
2.	A countdown timer will begin counting down once no further movements are detected
3.	Once the timer reaches your set duration (can be configured to 5, 10, 15, 20, or 30 minutes), the iron will enter sleep mode
4.	The temperature will cool to a lower idling temperature to reduce wear and prevent oxidation.
5.	You can wake the iron by three methods as mentioned in the operating instruction.

Hope the information would be helpful for you. Please feel free to drop us a message via Amazon’s Messaging System (link is here: https://amzn.to/2mKq0EU) if you need further assistance with YIHUA products. We will answer your queries within 24 hours.

Best regards,
YIHUA OFFICIAL STORE

Question 4

Does anyone know how to calibrate temperature on the 939d+ iii soldering station? the instruction about calibration on the manual is really not clear.

Accepted Answer

Dear customer,
Thank you for your question here.

In fact, the station has gone through 4 controlled-tests and temperature calibrations in the factory before entering the market. If the temperature differential between the displayed and the displayed temperature (measured by a thermometer) is within 10°C/18°F, we do not recommend users to perform the temperature calibration. Once misused, the temperature calibration function,  there then would be high risks of potential fire hazards due to human error. 
 
But if there is indeed a differential (exceeds 10°C/18°F) between the displayed and actual measured temperature, you can strictly follow the calibration procedures in the supplied manual to calibrate.

We attached a video on how to perform the temperature calibration function of the YIHUA 939D+ III station.

Feel free to drop us a message at Amazon's Messaging System if you require any further assistance (link is here: https://amzn.to/2mKq0EU). We will promptly attend to you.

Best regards,  
YIHUA OFFICIAL STORE

ASIN	B07YSCBZ4F
Best Sellers Rank	#22,917 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #47 in Soldering Stations
Brand	YIHUA
Brand Name	YIHUA
Customer Reviews	4.6 out of 5 stars 1,061 Reviews
Display	LED
Display Type	LED
Included Components	1 x 907F Detachable Soldering Iron, 1 x 939D+ Digital Soldering Station, 1 x Cleaning Kit (Brass Wool), 1 x Cleaning Sponge, 1 x Metallic Iron Holder Included Components 1 x 907F Detachable Soldering Iron, 1 x 939D+ Digital Soldering Station, 1 x Cleaning Kit (Brass Wool), 1 x Cleaning Sponge, 1 x Metallic Iron Holder See more
Item Dimensions D x W x H	5.4"D x 4.4"W x 3.6"H
Lower Temperature Rating	199.94 °C
Manufacturer	Guangzhou Yihua Electronic Equipment Co., Ltd.
Manufacturer Part Number	YIHUA 939D+
Model Number	YIHUA 939D+
Number of Channels	1
Number of Items	7
Number of Packs	1
Product Dimensions	5.4"D x 4.4"W x 3.6"H
Temperature Stability	392 degrees_fahrenheit
Upper Temperature Rating	896 °F
Voltage	127 volts_of_alternating_current
Wattage	120 watts

- 939D+ Digital Soldering Station, 75 Watt Equivalent with Temperature Control, °C/°F Display. ESD safe for Electronics. Aluminum Panel (Resists Burn). Solder Tips, Lead-free Solder & Extras

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