This product appears in the ERE Water Catalogue 2026
Overview
Features
• Portable, acoustic ranging instrument designed to simply and quickly measure depth to static water level in a well, piezometer, sounding tube, or any closed pipe
• Reports static water level measurements without having to put any instruments down the well, eliminating any introduction of chemicals and the need to decontaminate equipment or wells
• Works in straight or crooked wells/pipes and tubes ranging in diameter from 0.5" (1.3 cm) to 8" (20 cm) with water levels from 3 m (10 ft) to 600 m (2000 ft) from surface
• Clear LCD display and keypad
• Ability to set in "Power Save" mode to prolong battery life
• Can set the water level measurement range minimum and maximum to ignore interference from known well features
• Settings allow you to account for different well/ drop tube diameters and heights
• 5/8" probe diameter
• 6 ft cable length
• Units of measurement: metric or English options
• Probe is designed to sit in the vent opening of a standard well cap, or the opening in a Solinst 2" locking well cap
• Plastic disc is used to cover the well opening for measurement in larger diameter openings
Includes
• Control unit
• Probe
• 6 ft cable
• Disc
• (6) AA replaceable batteries
• Field bag
| Part Number | Description |
| SO-115747 | Model 104 Sonic Water Level Meter Assembly |
Documents
Calibration and repair
Send it to our Montreal service team. We evaluate the instrument and send a detailed quote before any work starts.
Questions, answered
How fast will I get a price?
Send the quote request and a specialist replies within 4 business hours, Monday to Friday, 8:00 to 4:30 ET.
Can we pay on account or by purchase order?
Yes. With established credit, terms are Net 30 days, and you can send your purchase order with the quote request. We also accept Visa, Mastercard and American Express.
How is shipping charged?
On quotes and account orders, freight is F.O.B. Montréal: the carrier charge is worked out at shipment from the packed weight and dimensions, and added to your invoice. In-stock items can also be picked up the same day in Montréal (8605 rue du Champ-d'Eau).
Can I return it?
Yes, within 30 days of purchase, with a return authorization number from customer service first. A 25% restocking fee applies, unless it is a defect covered by the warranty. Special orders, hazardous materials, flammable liquids and gases can't be returned. Return policy
Can ERE calibrate or repair it?
Yes. Our Montréal service shop calibrates and repairs it in-house. Request service
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