I can't find the thermistor information for my J-HEAD

[1nsecure]

A while ago I bought this thing: http://www.geeetech.com/assembled-all-m ... p-791.html
According to the wiki, it uses these thermistors: http://www.geeetech.com/10pcs-100kohm-n ... p-836.html

Unfortunately, there is neither datasheet or B range that could help me out. I need to run this at ~230℃

Characteristics：
B-value:3950K±3% (What range???)
Resistance:100Kohm±1%
Thermal time constant in air:≤7Sec
Operating temperature：-40℃ to +300℃
Dissipation constant in air：2.1mW/℃

Package list:
10 x 100Kohm NTC Thermistors for hotend


Are they related to these by any chance?
http://www.geeetech.com/10pcs-100kohm-n ... p-632.html ????

[techsupport]

hi, 1nsecure
glad to help you,This is 100Kohm NTC Thermistors data sheet.
Please refer to the attachment. Best regards!