Animal Rectal Probes

physitemp

RET-2   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 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 seconds. 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 seconds. 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".
Time constant 0.5 seconds. Isolated.
 

RET-4   Rectal probe for very small animals (neonatal mice). Flexible polyurethane sheath with smooth roundet tip (see inset). 36" long (can made longer). Outside diameter 0.032" (max at tip 004").  Max Temp. 140°C. Time constant 0.18 seconds. 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.  
 

 

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