
Features
• Fit conveniently on a 2" (50 mm) well casing using the well cap base (a 4" well adaptor is available)
• The SPX Wellhead has a connection for communicating with Solinst software and accessories and a second connection for communicating with third party dataloggers or telemetry systems using MODBUS (RS-232/RS-485) or SDI-12 protocols
• 4 x 1.5V AA lithium replaceable batteries
| Part Number | Description |
| SO-115306 | 3500 SPX Wellhead For AquaVent 5 |
Related equipment we stock

Model 9200 Remote Radio Link Telemetry (RRL)
900 MHz or 2.4 GHz radio | Up to 30 km (20 mi) RF LOS range | IP67 | -20°C to +60°C | 6×AA lithium batteries (~1 yr)

Model 9100 STS Telemetry Systems
4G LTE (Cat 4, Digi IX20 modem) | Up to 4 Solinst dataloggers per remote station | 12V sealed lead-acid battery (12–30 AHr), optional solar/AC | NEMA 4X (IP66) enclosure | -30°C to 50°C operating range

Model 9500 LevelSender 5
4G LTE Cat-M1 | IP67 | -20°C to +60°C | 3× AA Lithium | 2.5″ × 9.375″

Solinst Readout Unit (SRU) Model 4001
IP64 dust & splash resistant | Operating temp: -20°C to +50°C | Internal barometer ±0.2 kPa | 9V battery, up to 2-year life | Memory: ~1.8M LTC or 2.7M LT readings