4120, 4121, 4322, 4321
  Traceable® Sentry™ Thermometer °F/°C
  • Maximum and minimum memory
  • 10-foot-long, 1/16-inch-diameter, waterproof probe
  • Simple, one-button operation
 
Specifications: Range is –58 to 158°F or –50 to 70°C · Resolution 1° · Accuracy is ±1°C · Cable dimensions: diameter 1/16-inch diameter, 10-foot length · Unit size is 2-5/8 x 2-1/2 x 3/4 inches · Weight is 1-7/8 ounces 

Traceable® Sentry™ Thermometer °F/°C Complete Description

Simultaneously displays high/low and current temperature
A triple display constantly shows high, low, and current temperatures. Instantly view if freezer, water bath, or incubator is within temperature spec. Monitor temperature of any experiment when you’re not there—overnight, weekends, even during lunch. Range is –58 to 158°F or –50 to 70°C. Resolution is 1° and accuracy is ±1°C.

Micro cable for sealed spaces
Sensor and 10-foot cable may be placed under water, in refrigerator, or freezer. Small cable diameter (1/16-inch) allows refrigerator doors to close on it with no effect. Unplugging the cable activates a sensor inside the unit for monitoring ambient room temperature.

One-button operation is a snap
Simple, one-button operation resets the high/low memories. Probe’s wire-mounting bracket permits easy sensor placement. Low battery is signaled on the display.

Traceable to NIST for accuracy
Individually serial-numbered Traceable® Certificate is provided from our ISO 17025 calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST (National Institute of Standards and Technology).

Unit’s high-impact ABS plastic case has a flip-open stand, wall hanging hook, magnet, and Velcro™ mounting tape. Size is 2-5/8 x 2-1/2 x 3/4 inches and weight is 1-7/8 ounces. Unit runs continuously for 1 year on the supplied battery. Replacement battery Cat. No. 1039.

Control  Cat. No. 4120 Traceable® Sentry™ Thermometer °F

Control  Cat. No. 4121 Traceable® Sentry™ Thermometer °C

Control  Cat. No. 4322 Traceable® Sentry™ Thermometer °F with Bottle
Supplied with special bottle probe specifically for refrigerator/freezer applications

Control  Cat. No. 4321 Traceable® Sentry™ Thermometer °C with Bottle
Supplied with special bottle probe specifically for refrigerator/freezer applications



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Houston, Texas 77099
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