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Fisher Scientific™ Sentry Thermometers

Shows current, high and low temperatures simultaneously. Fisher Scientific™ Traceable™ Sentry™ Thermometer instantly shows if water bath, freezer or incubator is within temperature specifications and monitors temperature of any experiment, even when you are not there.

Manufacturer:  Fisher Scientific™ 4121EMD

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Catalog No. S541112




Probe Thermometer, deg. C; Fisher Scientific;Traceable; Sentry; Range: -50 deg. to +70 deg. C (-58 deg. to +158 deg. F); Weight: 4g

  • Sensor and 10 ft. (3m) cable may be placed under water, in a refrigerator or in a freezer
  • Small cable diameter (1.5mm) allows refrigerator doors to close on it
  • Simple one-button operation resets high/low memories
  • A probe wire mounting bracket permits easy sensor placement
  • Unit's high-impact ABS plastic case has a flip-open stand, plastic hanging hook, magnet and Velcro™ mounting tape
  • Range: -50° to +70°C (-58° to +158°F)
  • Resolution: 1°
  • Accuracy: ±1°C
  • Dimensions: 2.68 × 2.68 × 0.76 in. (67 × 67 × 19mm)
  • Weight: 0.1 oz. (4g)
Description & Specifications


ISO 17025, A2LA, NIST
2.5 x 2.6 in. (6.3 x 6.6cm)
Traceable calibration report supplied by the manufacture, mounting hardware and one battery
-50° to +70°C
2.5 in.
0.4 in.
Water bath, freezer or incubator is within temperature specification
120 in.
Not Applicable
1.87 oz.
2.6 in.