NL300 External Temperature Sensor and Door Switch

Wireless Freezer Thermometer

The IN-WT004F1 is an external temperature sensor with a door switch to monitor door events and act as an ideal wireless freezer thermometer. Temperature range -34°C to +100°C. This reliable transmitter is used with our wireless Notion Lite temperature monitoring system for 24/7 data and instant alarm notifications. Contact us today for your free quotation and signal strength test (we can prove ours to be unrivalled) or to discuss your specific temperature monitoring requirements and application.

Instrument Specifications

Dimensions: 165mm x 65mm x 35mm
Weight: 150g including battery
Power Supply: Enclosed battery 1 x 1.5V AA Lithium (user replaceable)
Case Material: ABS
IP Rating: IP65

Technical Specification

External Temperature Sensor: Curved matched thermistor (purchased separately)
External Temperature Range: -40°C to +100°C
Accuracy: ±0.5°C
Resolution: 0.1°C
Instrument Operating Temperature: -30°C to +50°C
Instrument Storage Temperature: -40°C to +85°C
Door Switch: IN-DC001 Magnetic reed switch (purchased separately)
Door Cable: 3 meters

Radio Transmitter Functions

Frequency: 433-434MHz band
Radio Power: Max 10mW, duty cycle >0.1%
Radio Range: 300mtrs over open ground
Battery Life: 2 years plus
Battery: 1.5V AA Lithium, 1.5V AA Alkaline (Not recommended for use below -10°C)

Our Notion Lite System is designed and manufactured by Hanwell | Ellab. Contact us today to discuss your temperature monitoring requirements and we will almost certainly be able to find a solution for you.