Same non-contact ultrasonic measurement as the SR, extended to cover large tanks, cisterns, and deep containers. Mount once, monitor continuously, alert at your thresholds.
 
*Water tank and cistern level*
*Agricultural storage — grain, feed, fertilizer*
*Dumpster and waste container fill level*
*Industrial silo and bulk storage*
 
**Device**
- Measurement range: 280mm to 7500mm (11in to ~25ft)
- Accuracy: ±1% of reading
- Measurement method: Ultrasonic, non-contact
- Battery: ER18505 — up to 5 years typical
- Enclosure: IP67
 
**Network + Services**
- Protocol: LoRaWAN US915 — low power, long range, strong building penetration.
- Coverage: Helium network — largest community-powered IoT network globally. Dedicated gateway available where required.
- Alerts: Real-time SMS to any phone at your configured threshold.
- Dashboard: Live monitoring view — View live demo → https://tinyurl.com/2v7fapm7
- Integration: Custom analytics, trend analysis, and threshold automation available.
 
**Includes first year of monitoring ($150/yr thereafter)
Bulk pricing available for 5+ devices — [contact us →]