Senseca

HP3501 Leaf Wetness Sensor

Leaf wetness sensor with double sensitive surface.

Separate outputs for the upper and lower sensitive surfaces
IP67 protection, with 5-pole M12 connector
Available with 5 m (HP3501.5) or 10 m (HP3501.10) cable

Quantity

Overview

The Senseca HP3501 is a leaf wetness sensor with a double sensitive surface, providing separate outputs for the upper and lower surfaces. It has ingress protection IP67 and is supplied with a 5-pole M12 connector and a 5 m (HP3501.5) or 10 m (HP3501.10) cable. The sensor connects to Senseca HD35 series wireless data loggers, such as the HD35EDLW1NLTC, which measures leaf wetness with a capacitive sensor over 0…100% of leaf area wetness.

Typical applications

Leaf wetness monitoring with Senseca HD35 series wireless data loggers (HD35EDLW1NLTC)
Outdoor installations requiring IP67 protection

Key Features

Double sensitive surface (upper and lower)
Separate upper and lower surface outputs on the M12 connector
Ingress protection IP67
5-pole M12 connector
5 m or 10 m cable versions
Compatible with Senseca HD35 series data loggers

Benefits

Both leaf sides measured: upper and lower surfaces have separate outputs
Outdoor-ready: IP67 protection for installation in the field
Plug-in connection: 5-pole M12 connector for quick connection to the data logger
Flexible placement: choose a 5 m or 10 m cable to suit the installation

Specifications

SENSOR
Type	Leaf wetness sensor with double sensitive surface
Protection degree	IP67
Width (sensitive surface)	61 mm
Connector	5-pole M12
Cable length	5 m (HP3501.5) or 10 m (HP3501.10)

LEAF WETNESS MEASUREMENT (WITH HD35EDLW1NLTC DATA LOGGER)
Sensor	Capacitive
Measuring range	0…100% of leaf area wetness
Resolution	0.1%
Accuracy	5% @ 23 °C
Sensor operating temperature	-30…+60 °C

M12 CONNECTOR PINOUT
Pin 1	Upper surface output positive
Pin 2	Not connected
Pin 3	GND
Pin 4	Lower surface output positive
Pin 5	Power supply positive

ORDERING CODES
HP3501.5	Leaf wetness sensor with double sensitive surface, 5 m cable, 5-pole M12 connector
HP3501.10	Leaf wetness sensor with double sensitive surface, 10 m cable, 5-pole M12 connector