Key features

• Choice of thermistors, thermocouple and platinum resistance sensors
• Wide range of physical styles
• High quality robust construction for long life
• Test and calibration traceable to national standards
• Choice of cables and connectors for different applications

Thermistors

• larger electrical signal for a given temperature change than other sensors
• fast response time
• high accuracy (± 0.1°C)
• preferred sensor over the operating range -50 to +150°C
• long cable lengths possible without significant errors
• mini thermistors available for miniature/needle probes

Thermocouples

• suitable for temperatures from -25°C up to +250°C
• fast response time
• moderate accuracy (± 0.5°C)
• suitable for a wide range of applications from delicate to heavy industrial

Platinum resistance

• suitable for temperatures from -50°C up to +250°C
• good accuracy (± 0.3°C)
• good long term stability
• choice of Pt100 and Pt1000 sensors
• choice of 2 and 4 wire where compensation of cable resistance required
• capacitive humidity and temperature probes

Humidity probes

Grant provides the following combined temperature/humidity probe (RHT-G-Z) for use with Squirrel data loggers:

These are available with 2, 5 or 10 metres of cable (example code for 2m RHT-G-Z2-0)

Rotronic HYGROMER™ with Pt100 sensor

• measurement range -40 to +100°C (-0.4 to +1V); 0 to 100% r.h. (0 to 1V)
• sensors protected against dust and pollution
• fast response time: start-up 3s
• good long term stability
• robust polycarbonate housing
• accuracy (at +23°C): humidity ±0.8% r.h., temperature ±0.2°C
• good long term stability: <1% r.h, 0.1°C/year
• dimensions of sensor head: 85mm x 15mm
• can be supplied as Dew point output instead of rh, upon request

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