Product Description

The device DL-PR21 enables remote monitoring of pressure in pipelines or tanks. It measures the pressure at the G 1/4” pipe connection relative to the pressure at the cable entry. When the sensor head is mounted at the bottom of a water tank, the relative pressure indicates the depth of the sensor head (fill level). In water, the relative pressure of 1 bar equals to a depth of approximately 10 m. The device also records the temperature of the sensor head. The temperature reading is used for temperature compensation. Sensor data are transmitted in real-time using LoRaWAN® radio technology. LoRaWAN® enables encrypted radio transmissions over long distances while consuming very little power. The user can obtain sensor data through Decentlab’s data storage and visualization system, or through the user's own infrastructure.

Features

LoRaWAN® -enabled piezoresistive pressure sensor / depth gauge.
Range: -1 ... 10 bar (up to 100 m depth); resolution: 0.000336 bar (3.36 mm).
Temperature range: -40 … 110 °C.
Cable length: 2 m. Industry standard pipe connection G 1/4” (NPT 1/4” available on request).
Compatible with LoRaWAN® networks of any provider.
Place and measure: no setup required.
Configurable via command line interface and downlink command interface.
Unattended real-time monitoring for several years without replacing batteries.

Parameters

Internal battery type	2 × alkaline C batteries (LR14)
Power consumption (average)	≤ 0.4 mW (10 min interval)

Wireless technology	LoRaWAN®
Wireless range	> 10 km (line of sight1 ), approx. 2 km (suburban)
Frequency bands	868 MHz (EU version), 915 MHz (US, AS, AU versions)

Dimensions	135 × 81 × 70 mm (not including sensor / cable)
Weight	510 g including batteries and sensor (380 g without batteries)

Discounted Trade Pricing: Contact us for trade pricing, to place an order or to discuss your IoT projects.

All of our products are available to customers throughout Europe. For more information on shipping costs, currency conversions and lead times, please contact our technical sales team.