
Data Sheet
TC253B
Temperature Adapter
Converts your multimeter to a thermometer
Key features:
°C/°F switchable
 ■
Uses type K thermocouple sensor ■
Includes TP255A bead probe ■
 -50 °C to 1000 °C (-58 °F to 1832 °F) ■
No hassle 
warranty
No waiting. 
No shipping  
charges.
Our commitment to 
high-quality products 
and customer service 
is demonstrated by 
our industry exclusive  
“No Hassle” warranty.  
In the unlikely event 
that an Amprobe Test 
Tool requires warranty 
service, any of our 
local dealers are 
authorized to replace 
it, on the spot.
(note: $500 MSLP limit)
Included Accessories
TC255A K-type bead probe, battery and users manual.
Optional Accessories
TP255A  Replacement Bead Probe 
TP254A  Immersion Probe 
MH101KA  Master Handle Probe 
TP110KA  Immersion Probe* 
TP120KA  Surface Probe* 
TP130KA  Air Probe*
*TP110KA, TP120KA and TP130KA require MH101KA handle
Amprobe® Test Tools 
www.Amprobe.com
 

TC253B Temperature Adapter
Data Sheet
General Specifications
Output  1 mV DC per 1 °C or 1 °F 
Operating Ambient  0 % to 80 % R.H. (0 °C to 35 ºC); 0 % to 70 % (35 °C to 50 ºC) R.H. 
Storage Temperature  - 20 °C to 60 ºC, 0 to 80 % R.H. with battery removed 
Temperature Coefficient  0.15 x specification/°C, (< 18 °C or > 28 °C) 
Power  Standard 9 V battery, NEDA 1604, JIS 006P, IEC 6F22 
Battery Life (typical)  300 hours alkaline 
Low Battery  Battery voltage shown when switch is in OFF position, replace if < 7.1 V 
Input Connector  Accepts standard miniature thermocouple connectors 
    (flat blades, spaced 7.9 mm, center to center)
Dimensions (HxWxD)  122 mm x 46 mm x 30 mm (4.8 in x 1.8 in x 1.1 in) 
Weight (including batteries)  114 g (4 oz)
Specifications
Function  Range  Accuracy
°C Mode  - 50 ºC to - 20 ºC  ± (2.0 % rdg + 2 ºC)
  - 19 ºC to 350 ºC  ± (0.5 % rdg + 2 ºC) 
  351 ºC to 500 ºC  ± (2.0 % rdg + 2 ºC) 
  501 ºC to 1000 ºC  ± (2.9 % rdg + 2 ºC) 
°F Mode  - 58 ºF to - 4 ºF  ± (2.0 % rdg + 4 ºF)
  - 3 ºF to 662 ºF  ± (0.5 % rdg + 4 ºF) 
  663 ºF to 932 ºF  ± (2.0 % rdg + 4 ºF) 
  933 ºF to 1832 ºF  ± (2.9 % rdg + 4 ºF) 
Input Protection  60 V DC or 24 V rms
TP255A Bead Thermocouple
Temperature Range  - 40 ºC to 204 ºC (- 40 ºF to 400 ºF) 
Tolerances  0 ºC to 204 ºC  ± (2.2 ºC or 0.75 %)
  0 ºC to - 40 ºC  ± (2.2 ºC or 2.0 %) 
Wire Length  1 meter, with miniature plug, Teflon tape insulated
Amprobe® Test Tools
website: www.Amprobe.com 
email: info@amprobe.com 
Everett, WA 98203 
Tel: 877-AMPROBE
Amprobe® Test Tools 
Amprobe® Test Tools Europe
In den Engematten 14 
79286 Glottertal, Germany 
Tel.: +49 (0) 7684 8009 - 0
©2007 Am probe Test Tools. All rights res erved. 
9/20 07 PN: 164 6634 D -US-N Rev D
www.Amprobe.com