Description
AI-TEK Mini Speed Sensor – Model 70085-1010-086
AI-TEK 70085-1010-086 is a small magnetic pickup. It fits tight spots. Output reaches 55V peak-to-peak. Works from -55°C to 107°C. Great for small engines and compact gearboxes.
Technical Data (Tree Structure)
- ▪ Brand & Series: AI-TEK | Series 70085
- ▪ Full Model: 70085-1010-086
- ▪ Thread Size: 3/8-24 UNF
- ▪ Thread Length: 0.812 inches
- ▪ Sensor Length (total): 1.252 inches
- ▪ Output Voltage Standard (P-P): 55 V
- ▪ Output Guarantee Voltage (P-P): 3.6 V (min at low speed)
- ▪ Output Guarantee Point: 4.2 V (P-P) at specific condition
- ▪ DC Resistance: 960 ohms max
- ▪ Typical Inductance: 125 mH reference
- ▪ Output Polarity: White lead positive
- ▪ Termination: Wires (pigtail leads)
- ▪ Lead Length (for -086): 18 inches (45.7 cm)
- ▪ Cable Length (-355 variant): 40 inches (101.6 cm)
- ▪ Temperature Rating: -55°C to +107°C
- ▪ Agency Approval: None
- ▪ Net Weight: 2 oz. max (very light)
Quick Specs at a Glance
- Part Number: 70085-1010-086
- Thread: 3/8-24 UNF (short 0.812″ thread)
- Output: 55V P-P standard / 3.6V guaranteed
- Wires: 18 inch leads, white is positive
- Resistance: 960 ohms max
- Temp range: -55 to 107°C
- Weight: Only 2 ounces
Installation & Fitting
- Use 3/8-24 UNF mounting hole. Very fine thread.
- Set gap to 0.010 to 0.015 inches from gear tooth.
- Short body length (1.25″) fits shallow housings.
- Tighten by hand plus 1/8 turn. Do not over torque.
- Strip wire ends 1/4 inch for terminal connection.
Maintenance & Compatibility
- No moving parts. Zero maintenance needed.
- Check wire insulation yearly for cracks.
- Works with any PLC or tachometer that reads 3.6 to 55V AC signals.
- Works on ferrous metal gears (steel, iron).
- Replace easily: unscrew old unit, screw in new one.
Warranty, Shipping & Support
- 12 months warranty against defects.
- Fast shipping: FedEx, UPS, DHL worldwide.
- Delivery in 3-7 business days.
- Each sensor tested before packing.
5 Professional FAQs (New & Unique)
- Q1: Why does output voltage show 55V but guaranteed only 3.6V?
A: 55V is peak at high speed. 3.6V is the minimum at very low speed (100 Hz). Your tachometer will work with either value. - Q2: The sensor has 960 ohm resistance. Is that normal?
A: Yes. This model uses fine wire coil for high output. 960 ohms is typical. Compare to 130 ohm models – this one gives more voltage. - Q3: Can I extend the 18-inch wires?
A: Yes. Use shielded twisted pair cable. Keep total length under 100 meters to avoid signal loss. - Q4: Does this work with non-ferrous gears like aluminum?
A: No. Needs ferrous metal (steel, iron). Aluminum will give zero output. - Q5: What gap gives best signal for this small sensor?
A: 0.010 to 0.012 inch works best. Larger gap (0.020″) drops output by 50%.
Shopping Guidance – Pick the Right AI-TEK
- ✅ Choose 70085-1010-086 for very tight spaces. Total length only 1.25 inches.
- ✅ Perfect for small motors, pumps, and compact gear drives.
- ✅ Output 55V gives strong signal even with long wire runs.
- ✅ White wire positive – easy to connect to standard inputs.
- ✅ Need longer cable? Ask for -355 variant (40 inch leads).
- ✅ 12 month warranty and FedEx/UPS/DHL fast shipping.
Typical Applications
- Small diesel engine RPM monitoring
- Compact gearbox speed feedback
- Medical equipment rotational sensors
- Packaging machinery zero speed detection
- Robotic joint speed measurement
Diagnostic Tips
- Measure DC resistance: should be near 960 ohms. Open circuit means broken coil.
- No output? Check gap and gear material. Also verify white lead is positive.
- Use oscilloscope to see sine wave shape. Clean wave means good alignment.
- Low voltage? Reduce gap to 0.010 inches.
Contact & Support
WhatsApp for quick help: +86 158 8020 0923 – Sales and tech team.
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