ACR Systems

Nautilus 85/135 Series Data Loggers

Single-channel, waterproof temperature data loggers with three (3) to ten (10) year battery life

Starting At
$289.00 CAD
Normally ships in 1-2 Weeks

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The Nautilus Series consists of two full-featured, single-channel temperature loggers designed for "wet" environments at varying temperature ranges - from oceans, streams, and wastewater to food and other liquids, Ideal for rugged applictions, Nautilus loggers come in stainless steel or aluminum and offer a high temperature option for environments where conventional loggers are unable to survive.

The Nautilus 85 is a durable, robust data logger that can monitor temperature in a variety of applications and is particularly well suited for the food and beverage, biomedical, pharmaceutical industries. As well as industries with hostile or "wet" environments (i.e. wastewater treatment plant). Housed in a stainless steel or aluminum casing, it can withstand virtually any environment and with an operating pressure range up to 2000 PSI, it is ideal for monitoring temperature in any type of water including oceans, ponds, rivers, streams and wastewater.

The high temperature capabilities of the Nautilus 135 make it the ideal logger for monitoring temperature in extreme environments or environments where conventional data loggers are not able to survive.

• Widest temperature range supported across series at -40°C - 135°C (-40°F - 275°F)
• 32KB memory for up to 244,800 readings with data compression
• Compact, cylindrical design for the narrowest applications (e.g. in bottles)
• Lightweight with stainless steel and aluminum case material options
• Three (3) to ten (10) year battery life (depending on model)
• Three (3) year warranty

Size 18 mm x 127 mm (0.71 in x 5.00 in)
Case Material Anodized aluminum or stainless steel
Weight Aluminum case: 51 g (1.8 oz)
Stainless steel case: 112 g (4 oz)
Operating Limits See individual specifications
Operating Pressure Range Up to 2000 PSI
Clock Accuracy ± 2 s/day
Battery 3.6 V Lithium, 0.95 Amp-Hour
Power Consumption 5 - 10 µA (continuous)
Battery Life See individual specifications
Mounting Locking hole on cap
Memory Size 32 kB (up to 244,800 readings with data compression)
Sampling Methods 1. Continuous (First-in, First-out)
2. Stop when full (Fill-then-stop)
(Option to delay start)
Sampling Rates User selectable from 8 s - 34 min.
Readings stored to memory can be spot or averaged over the sample interval (except for the 8 s interval).
Resolution 8 bit (1 part in 256)
PC Requirements Windows PC with a least 256 MB RAM, 250 MB of hard drive space and one free serial or USB port
Software Requirements TrendReader® 2 Express or TrendReader® 2 (compatible with Windows® XP, Vista, Windows 7, Windows 8 & Windows 10)
Temperature Range Nautilus 85: -40°C - 85°C (-40°F - 185°F)
Nautilus 135: 10°C - 135°C (50 - 275°F)
Sensor Accuracy Nautilus 85: ± 0.2°C over the range of 0°C - 70°C (± 0.3°F over the range of 32°F - 158°F)
Nautilus 135: ± 0.5°C (± 0.9°F)
Sensor Type Negative temperature Coefficient (NTC) Thermistor
10,000 Ω @ 25°C (77°F)
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