Product Overview

Telaire T8700 Wall Mount Humidity and Temperature Transmitters are precision devices designed for HVAC control applications. They offer versatile analog outputs (0-5V, 0-10V, 4-20 mA) and are available in both display and non-display versions. Featuring rugged capacitive sensors with excellent recovery to condensation and chemicals, these transmitters ensure unsurpassed response times, linearity, and stability. The modern enclosures are made from flame retardant, UL-94V ABS plastic and offer enhanced airflow for increased sensor response time and accuracy. Installation is simplified with a two-piece enclosure and terminal blocks, allowing for pre-wiring. The T8700 series boasts a low cost of ownership due to a two-year warranty, simplified inventory, reduced installation times, and field-serviceability with a replaceable RH sensor tip module.

Product Attributes

• Brand: Telaire
• Sensor Type: Capacitive polymer sensor (RH), NTC 10 K W thermistor (Temperature)
• Enclosure Material: Flame retardant, UL-94V ABS plastic
• Certifications: CE and RoHS compliant
• Warranty: Two years (transmitter), one year (replaceable sensor)
• Customization: Customized branding available on request (subject to quantity)

Technical Specifications

Specification	Details
Product Line	T8700 Wall Mount Humidity and Temperature Transmitters
Analog Outputs	0-5V, 0-10V, 4-20 mA (simultaneously available)
Temperature Output Options	Thermistor 10k II (passive), Active
Temperature Range (Active)	0 to 50C
Temperature Range (Scaled)	32F to 122F (0C to 50C)
Relative Humidity (RH) Range	0% to 99% RH (non-condensing)
RH Accuracy (25C)	2.5% RH (20 to 80% RH), 3.5% RH (80% RH)
Active Temperature Accuracy	0.8C @ 22C
Thermistor Accuracy	1C (15 to 35C)
Power Supply Requirements	18-30 VAC RMS, 50/60 Hz, or 18 to 42 VDC, polarity protected
Power Consumption	Typical 0.7 W at nominal voltage of 24V AC RMS
Temperature Dependence	0.2% FS per C (0.11% per F)
Operating Conditions	32F to 122F (0C to 50C), 0 to 95% RH, non-condensing
Storage Conditions	-40F to 158F (-40C to 70C)
Flammability Classification	UL94 5VA
Output Impedance (10V)	100 W
RL Maximum (4-20mA)	500 W
Digital to Analog Error	1%
Sensor Filter	Gas permeable, water resistant, hydrophobic
Field Replaceable Sensor	Yes (RH sensor tip module, Part No. T63346)
Models	T8700-E (Euro, Non-Display), T8700-E-D (Euro, Display), T8700 US (US, Non-Display), T8700-D US (US, Display)
Display Versions	Scroll between % Relative Humidity and Temperature (C or F)
NIST Certificate	Available at additional cost (Part no. 3PTCERT for sensor, NIST/NPL certificate available on complete transmitter at extra cost)