
1 / 2 · Click to enlarge
FirstRate FST-100-YL106 Smart Residual Chlorine Sensor, 0~20mg/L(ppm), (RS485)
The FirstRate FST-100-YL106 Smart Residual Chlorine Sensor, 0~20mg/L(ppm), (RS485) by FirstRate is a premium water quality sensors designed for premium buyers. It features Item Type: Sensor and Voltage Rating: 12 to 24.
Available Offers
Free Delivery on this order. No minimum order value.
15-Day Easy Returns — hassle-free return & full refund.
Secure Payment — 100% safe checkout with UPI, Cards & Net Banking.
Available Offers
5% Cashback
Pay with UPI & get 5% cashback (up to ₹50) via Razorpay
No-Cost EMI
Available on select bank cards at checkout. 0% interest for 3 months.
Free Shipping
Free delivery on all orders. No minimum order value.
Cash on Delivery
COD available on orders up to ₹5,000 across India.
Quick Specs
Ideal For
About This Product
The FirstRate FST-100-YL106 Smart Residual Chlorine Sensor, 0~20mg/L(ppm), (RS485) by FirstRate is a premium water quality sensors designed for premium buyers. It delivers reliable performance at an accessible price.
Key Specifications
- Item Type: Sensor
- Voltage Rating: 12 to 24 — works with standard household power
- Resolution: 0.01 mg/L
- Withstand Voltage: 0-3 bar — works with standard household power
- Communication Mode: RS485 (MODBUS-RTU) with DTU, wireless transmission
- Signal Output: 4-20mA
- Operating Temperature (°C): 0-60
- Material: PC + stainless steel (Shell) — built to last with a quality finish
Why Buy from Pricio?
Pricio sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.



Features:
- High Precision: Measures residual chlorine with a resolution of 0.01 mg/L.
- Versatile Installation: Drop-in or pipe socket installation options.
- Robust Construction: Made from PC and stainless steel with IP68 protection.
- Accurate Measurements: Temperature measurement accuracy of ±0.2℃.
- Wireless Data Transmission: Equipped with RS485 (MODBUS-RTU) for wireless data communication.
- Reliable Performance: Withstands up to 3 bar pressure and operates in high humidity conditions.











