• Use a thermal buffer with your probe to
  prevent nuisance alarms.

Glycol, Glass Beads, IceClear PGX. Specify buffer solution on order.

Sentinel Next Ultra Low Temperature Probe for ultra-low freezers and liquid nitrogen chambers. Used in tissue and blood storage, pharmaceutical and other healthcare applications

Probe Length & Diameter Stainless probe: 25mm, Ø 4mm (1”, Ø 0.16”)
Cable Length: 183cm (6ft)
Measurement Range: -200°C to +150°C (-328°F to +302°F)
Accuracy: ±0.2°C (±0.4°F) at 25°C (77°F)
Response Time: (to reach 90%) In water, with stirring: <10sec
Display Resolution: 0.1°C (0.1°F)
Optional DI (Digital Input): dry contact available

Sentinel Next Temperature and Relative Humidity Connector

Temperature Measurement Range: -40°C to +125°C (-40°F to +257°F)
Accuracy: ±0.3°C (±0.5°F)
Relative Humidity Range: 0 to +100% RH
Response Time: (to reach 66%) 5 to 30sec for T; 8sec for RH
Display Resolution: 0.1°C (0.1°F)

Sentinel Next RTD probe with Dry Contact for ultra-low freezers and liquid nitrogen chambers. Used in tissue and blood storage, pharmaceutical and other healthcare applications

Probe Length & Diameter Stainless probe: 25mm, Ø 4mm (1”, Ø 0.16”)
Cable Length: 183cm (6ft)
Measurement Range: -200°C to +150°C (-328°F to +302°F)
Accuracy: ±0.2°C (±0.4°F) at 25°C (77°F)
Response Time: (to reach 90%) In water, with stirring: <10sec
Display Resolution: 0.1°C (0.1°F)
Optional DI (Digital Input): dry contact available

Door Contact
Circuit type Open loop
Operation gap ½”(13mm)
Color: White
Terminals: Screw-type
Mounting Tabs: Yes
Case: High-impact ABS plastic
Contacts: Deactivated rhodium on gold under-plating
Contact rating: 0.1A@100VDC (max) 1.0A@10VDC (max) 10W (max)
Temperature: -15°~160°F (-25°~70°C)
Switch cycles: 50 Million (0.1mA@5VDC)
Switch Dimensions: 21/2′′x9/16′′x1/2′′ (63.5x14x13mm)
Magnet Dimensions: 21/2′′x1/2′′x1/2′′ (63.5x13x13mm)
Magnet Type: Ferrite

RTD Probe for ultra-low freezers and liquid nitrogen chambers. Used in tissue and blood storage, pharmaceutical and other healthcare applications

Probe Dimensions: 7.6cm x 9.5cm x 3.8cm (3” x 3.75” x 1.5”)
Cable Length: 100cm (~39”)
Operating Principle: Non-dispersive infrared (NDIR)
Measurement range: CO2 0 to 30%vol(CO2)
Measurement RH: 0 to 100% (non-condensing)
Measurement range: -40 to 60 °C
Accuracy: ± 0,25vol ± 3% of reading
Operation temperature range: 0 to 50 °C
Operation humidity range: 0 to 95% RH (non-condensing)
Display Resolution: 0.1°C (0.1°F)

Sentinel Next PRO Probe for ultra-low freezers and liquid nitrogen chambers. Used in tissue and blood storage, pharmaceutical and other healthcare applications

Probe Length & Diameter Stainless probe: 25mm, Ø 4mm (1”, Ø 0.16”)
Cable Length: 304cm (10ft)
Measurement Range: -30°C to +150°C (-22°F to +302°F)
Accuracy: ±0.2°C (±0.4°F) at 25°C (77°F)
Response Time (to reach 90%) In water, with stirring: <10sec
Display Resolution: 0.1°C (0.1°F)

Output: I2C
Pneumatic Connection: Manifold or Tube
Pressure range (bidirectional): 125 Pa 0.5” H2O
Accuracy of measured value: 3%
Lowest detectable pressure: < 0.01 Pa
Measurement speed: 0.5 ms
Calibrated for: Air, N2
Gas compatibility: Air, inert gases

Datalogging thermometer that meets 21 CFR 11 requirements, are ideal for monitoring temperatures in refrigerators, freezers, water baths, heating blocks, and incubators. High-accuracy thermometer has a temperature range of -50 to 70°C and resolution of 0.01°C and maintains an accuracy of ±0.25°C across the entire temperature range.