Posted in | Temperature Gauges

Monitoring Temperature and Humidity with the NP3300 RH/T Transmitter

The Hanwell Temperature and Humidity transmitter is a reliable and flexible unit designed for measuring temperatures ranging between -30 °C to +50 °C for multiple applications.

Temperature and Humidity Monitoring

The NP3300 is used with the renowned wireless IceSpy temperature monitoring system for instant alarm notifications and 24/7 data.

Instrument Specifications

The instrument specifications for the NP3300 are as follows:

  • Resolution: 0.1 °C
  • Weight: 150 g including battery
  • IP Rating: IP65
  • Accuracy: ±3%RH
  • Resolution: 0.1 °C
  • Range: -30 °C to +50 °C
  • Range: 0 - 100% RH non-condensing
  • RH Sensor Type: External fixed capacitive polymer
  • Dimensions: 165 x 65 x 35 mm (40 including mounting bracket)
  • Temperature sensor type: Bandgap (Internal with RH sensor)

Radio Transmitter Functions

  • Battery life: 2 years plus
  • Frequency: 433 - 434 MHz band
  • Case material: ABS
  • Storage temperature: -40 °C to +85 °C
  • Operating temperature: -30 °C to +50 °C
  • Radio range: 300 meters over open ground
  • Radio power: Max 10 mW, duty cycle >0.1%
  • Radio protocol: Frequency hopping for greater security
  • Battery: 1.5 V AA Lithium, 1.5 V AA Alkaline (Not recommended for use below -10 °C)

Typical Applications

The typical applications of the NP3300 include:

  • Monitoring of storage facilities
  • Monitoring of stability chambers
  • Monitoring of maturing cheeses
  • Monitoring drying conditions in food processing


The IceSpy Hanwell Pro series of RH/T transmitter units are reliable, flexible, and waterproof to IP65 except for the RH sensor which requires exposure to the atmosphere. All units have been designed to provide a wide range of humidity and temperature measurement options for multiple applications across Pharmaceutical, Healthcare, and Food industries. A backwardly compatible version is available for legacy systems.

The Hanwell Pro transmitters have a radio range of up to 300 meters over open ground. Data is effortlessly transferred wirelessly from the transmitters to the Network Receiver in order to provide real-time data collection. Each transmitter has on-board logging capabilities for 5 days for added data security, and data is downloaded via RFID.

Hanwell Pro RH/T Sensor Features

  • Wide range of units and sensors provide users with multiple temperature related applications
  • Superior performance hardware with high accuracy sensors
  • Easily accessible battery for replacement by the user, when needed
  • All transmitters incorporate a wall bracket
  • Calibration available up to UKAS standard
  • Low power radio for long-distance transmission
  • Battery life 2 years plus
  • Carries CE Marking
  • Complies with BS EN 12830
  • Complies with RoHS, WEEE and EU directives

System Components

Software Required

  • W600 – Hanwell Pro Software Package

Hardware Required

  • IN-NR001F1 – Network Receiver
  • IN-RP002F1 – Echo Repeater

Optional Hardware

  • IN-NA002 – ARB Module (Alarm, RFID and Bluetooth)
  • IN-TA001 – SMS Module
IceSpy Notion Pro Wireless Monitoring Overview for Labs

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