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Sauermann Si-RT2 Wired Temperature Clamp

Sauermann
SKU: SAUESIRT2
  • Innovative “Parrot” shape that handle 6 to 42mm pipes
  • High-speed NTC temperature sensor with high accuracy
  • Wide measurement range from -50 to 120 °C
More Info
Typically ships in 3-5 working days

Sauermann Si-RT2 Wired Temperature Clamp

The Sauermann Si-RT2 Wired Temperature Clamp provides reliable and accurate measurement for superheat and subcooling calculations in air conditioning, refrigeration and heat pump installations. It features an innovative “parrot-shaped” clamp that ensures a secure grip and perfect contact with pipes that have a diameter of between 6 and 42 mm (0.2” to 1.7”).

The Si-RT2 boasts a high-speed NTC sensor which delivers quick and accurate temperature readings. Unlike the wireless Si-RT7, the Si-RT2 features a durable 2m reinforced cable and a strengthened 3-point jack connector with a diameter of 3.2mm to ensure dependable operation even in demanding field conditions.

The Si-RT2 works seamlessly with Si-RM350 and Si-RM450 digital manifolds, allowing for efficient system servicing and performance analysis. It offers a wide measurement range from -50 to 120°C (-58 to 248°F), making it suitable for a broad spectrum of HVACR applications.

Part number: 28140

Comparing Sauermann Si-RT2, Si-RT5, Si-RT7 and Si-TH4

Specifications Si-RT2 Si-RT5 Si-RT7 Si-TH4
Sensor type NTC NTC NTC CMOS (Temp + Humidity)
Available units °C, °F °C, °F °C, °F °C, °F
Resolution 0.1 °C / 0.1 °F 0.1 °C / 0.1 °F 0.1 °C / 0.1 °F 0.1 °C / 0.1 °F
0.1% RH
Temperature range -50 to 120 °C (-58 to 248 °F) -20 to 85 °C (-4 to 185 °F) -20 to 85 °C (-4 to 185 °F) -20 to 60 °C (-4 to 140 °F)
Temperature accuracy ±1 °C (from -20 to 85 °C) -20 to 70 °C: ±0.3 °C
70 to 85 °C: ±0.5 °C		 ±1 °C -20 to 0 °C: ±0.3 °C
0 to 60 °C: ±0.5 °C
Humidity range - - - 0–100 %RH
Humidity accuracy - - - ±2 %RH (10–90 %RH)
±5 %RH (0–10 %RH / 90–100 %RH)
Max Operating Temp Jaws: 150 °C, Handle: 90 °C - Jaws: 85 °C, Handle: 50 °C -
Power Supply Via manifold (wired) Via manifold (wired) 3 × AAA batteries 3 × AAA batteries
Battery Life - - 150 h @ 20 °C 50 h @ 20 °C
Wireless Frequency - - 2402–2480 MHz, 8 dBm 2402–2480 MHz, 8 dBm
Wireless Range - - Up to 100 m (manifold or smartphone BLE 5.0) Up to 100 m (manifold or smartphone BLE 5.0)
Storage Temp -20 to 50 °C -20 to 50 °C -20 to 50 °C -20 to 50 °C
Compatibility Si-RM350 & Si-RM450 manifolds Si-RM350 & Si-RM450 manifolds Si-RM350, Si-RM450, Sauermann Pilot app Si-RM350, Si-RM450, Sauermann Pilot app
Mounting Method Parrot-shaped clamp Hook-and-loop strap Parrot-shaped clamp Flexible probe with sliding magnet
Pipe Diameter 6–42 mm (0.2’’–1.7’’) Up to 100 mm (3.9’’) 6–42 mm (0.2’’–1.7’’) -
Cable 2 m PVC, Ø3.2 mm, max 105 °C 2 m PVC, Ø3.2 mm, max 105 °C Wireless (no cable) Wireless (no cable)

 

Key Features

  • Innovative “Parrot” shape to handle 6 to 42 mm (0.2’’ to 1.7’’) pipes
  • High-speed NTC temperature sensor with high accuracy
  • Wide measurement range: -50 to 120 °C (-58 to 248 °F)
  • Connects to the Si-RM350 and Si-RM450 digital manifolds
  • 2 m (6 ft) length with strengthened 3-point jack connector
Specification
  • Temperature sensors: NTC
  • Temperature sensor range: -50 to 120°C (-58 to 248°F)
  • Temperature accuracy*: From -20 to 85°C (-4 to 185°F): ±1°C (±1.8°F)
  • Maximum operating temperatures: Jaws: 150°C (302°F) - Handle: 90°C (194°F)
  • Available units: °C, °F
  • Resolution: 0.1°C, 0.1°F
  • Pipes diameter: 6 to 42 mm (0.2’’ to 1.7’’)
  • Cable: 2 m (6 ft) length with strengthened 3-point jack connector |  Ø3.2 mm, in PVC, max. temperature 105°C (221°F)
  • Storage temperature: From -20 to 50°C (-4 to 122°F)
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  2. Sauermann Si-RM350 2-Way Digital Refrigeration Manifold
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