Animal Rectal Probes

physitemp
Description
RET-2   Rectal probe for rats.  For fast intermittent measurements.  Smooth ball tip.  Stainless steel shaft - 1" long,  0.059 " diameter.  Tip diameter  0.125 ".   5  ft. lead.
Max Temp. 125 °C. Time constant 0.8 seconds. Not lsolated.

RET-3 
Rectal probe for mice, etc. As RET-2, with shaft 3/4 " long.
0.028" dia.  Tip diameter 0.065 ".  Time constant 0.5 s.  Not isolated. 
   

RET-2-ISO   Rectal probe for rats. For fast intermittent measurements. Smooth ball tip.  Stainless steel shaft - 1" long.  0.059 " dia. Tip diameter  0.125".  5 ft. lead.  Max Temp. 125 °C.  Time constant 0.8 s.  lsolated.

RET-3-ISO  Rectal probe for mice, etc.  As RET-2-ISO, with shaft 3/4 " long.
0.028" dia.  Tip diameter 0.065". T ime constant 0.5 s.  Isolated.

  RET-4   Rectal probe for very small animals (neonatal mice).  Flexible polyurethane sheath with smooth rounded tip (see inset.)  36 " long (can made longer).  Outside diameter 0.032 " (max at tip 004").  Max Temp. 140 °C. Time constant 0.18 s.  May be sterilized by Gas (ETO), gluteraldehyde solution or autoclave.

 

Time constant is defined as the time required to reach 63 % of final temperature in liquid. An accurate reading is obtained when the reading stops changing, typically 5-10 time constants.

Maximum Temperature refers to intermittent use of a probe. When probe is used for continuous measurements, max. temp. should be reduced by 25 % unless specified.